Brass fittings Union Description
With over 4,000 brass fittings in stock starting at $0.05, we are always ready to provide you with exactly what you need for all your plumbing needs.
![Image for BSPT BSPP Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_bspt_1_100x.jpg?v=1525971071)
![Image for Bulkhead/Anchor/Frame Couplings](http://blackhawksupply.com/cdn/shop/collections/BF_bulkhead_1_100x.jpg?v=1525968743)
![Image for Flare Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_sae_1_100x.jpg?v=1525969853)
![Image for Inverted Flare Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_inverted_1_100x.jpg?v=1525970132)
![Image for Push On Hose Barb Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_push_on_1_100x.jpg?v=1525968978)
![Image for Pipe Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_pipe_1_100x.jpg?v=1525968298)
![Image for Nipples](http://blackhawksupply.com/cdn/shop/collections/LF_brass_nipples_1_100x.jpg?v=1525968422)
![Image for Chrome Plated Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/NF_chrome_fittings_1_100x.jpg?v=1525968572)
![Image for Chrome Plated Brass Nipples](http://blackhawksupply.com/cdn/shop/collections/NF_chrome_nipples_1_100x.jpg?v=1525968627)
![Image for Hose Barb Plumbing Brass](http://blackhawksupply.com/cdn/shop/collections/BF_hose_barb_1_100x.jpg?v=1525968810)
![Image for Single and Double Barb](http://blackhawksupply.com/cdn/shop/collections/sdbarb_1_100x.jpg?v=1525968883)
![Image for Beverage Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/A_beverage_1_100x.jpg?v=1525968926)
![Image for Garden Hose Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_garden_hose_1_100x.jpg?v=1525969049)
![Image for JIC 37 Degree Flare](http://blackhawksupply.com/cdn/shop/collections/BF_jic_flare_1_100x.jpg?v=1525970189)
![Image for Compression Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_compression_1_100x.jpg?v=1525970254)
![Image for Double Compression Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_double_compression_1_100x.jpg?v=1525970304)
![Image for Captive Sleeve Compression](http://blackhawksupply.com/cdn/shop/collections/BF_captive_1_100x.jpg?v=1525970357)
![Image for Self Align Compression](http://blackhawksupply.com/cdn/shop/collections/BF_self_align_1_100x.jpg?v=1525970430)
![Image for Flareless Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_flareless_1_100x.jpg?v=1525970497)
![Image for Brass Push In](http://blackhawksupply.com/cdn/shop/collections/BF_brass_push_1_100x.jpg?v=1525970556)
![Image for Nickel Plated Push In](http://blackhawksupply.com/cdn/shop/collections/BF_nickle_push_1_100x.jpg?v=1525970630)
![Image for Composite Body Push In](http://blackhawksupply.com/cdn/shop/collections/BF_composite_body_1_100x.jpg?v=1525970964)
![Image for Metric Push In](http://blackhawksupply.com/cdn/shop/collections/BF_metric_1_100x.jpg?v=1525971021)
![Image for Grease Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_steel_grease_1_100x.jpg?v=1525971277)
![Image for Drain Cocks](http://blackhawksupply.com/cdn/shop/collections/BF_drain_1_100x.jpg?v=1525971356)
![Image for Shut Off Valves](http://blackhawksupply.com/cdn/shop/collections/BF_shut_1_100x.jpg?v=1525971407)
![Image for Brass Air Cocks](http://blackhawksupply.com/cdn/shop/collections/BF_brass_air_1_100x.jpg?v=1525971459)
![Image for Needle Valves Brass Fittings](http://blackhawksupply.com/cdn/shop/collections/BF_needle_1_100x.jpg?v=1525971504)
![Image for Miniature Ball Valves](http://blackhawksupply.com/cdn/shop/collections/BF_miniature_ball_1_100x.jpg?v=1525971560)
![Image for Check and Anti Siphon Brass Valves](http://blackhawksupply.com/cdn/shop/collections/BF_check_1_100x.jpg?v=1525971612)
![Image for Space Heater](http://blackhawksupply.com/cdn/shop/collections/BF_space_heat_1_100x.jpg?v=1525971662)
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![Midland Metal Mfg. 18064 1/4 COMPRESSION UNION, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18064_medium.jpg?v=1718747301)
18064 | 1 / 4 COMPRESSION UNION, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18064
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![Midland Metal Mfg. 18063 3/16 COMPRESSION UNION, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18063_medium.jpg?v=1718747366)
18063 | 3 / 16 COMPRESSION UNION, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18063
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![Midland Metal Mfg. 18067 7/16 COMPRESSION UNION, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18067_c1514bd5-dea9-4c89-a199-acc8c0cc9b8a_medium.jpg?v=1718747300)
18067 | 7 / 16 COMPRESSION UNION, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18067
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![Midland Metal Mfg. 10139 3/4 FEMALE FLARE UNION | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/10139_medium.jpg?v=1718747014)
10139 | 3 / 4 FEMALE FLARE UNION | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 10139
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![Midland Metal Mfg. 10135 1/4 FEMALE FLARE UNION, Brass Fittings, SAE 45 Deg Flare, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/10135_medium.jpg?v=1718747053)
10135 | 1 / 4 FEMALE FLARE UNION, Brass Fittings, SAE 45 Deg Flare, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 10135
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![Midland Metal Mfg. 10138 5/8 FEMALE FLARE UNION | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/10138_medium.jpg?v=1718747012)
10138 | 5 / 8 FEMALE FLARE UNION | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 10138
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![Midland Metal Mfg. 18069 5/8 COMPRESSION UNION, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18069_medium.jpg?v=1718747296)
18069 | 5 / 8 COMPRESSION UNION, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18069
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![Midland Metal Mfg. 18066 3/8 COMPRESSION UNION, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18066_medium.jpg?v=1718747370)
18066 | 3 / 8 COMPRESSION UNION, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18066
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![Midland Metal Mfg. 10137 1/2 FEMALE FLARE UNION, Brass Fittings, SAE 45 Deg Flare, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/10137_medium.jpg?v=1718747050)
10137 | 1 / 2 FEMALE FLARE UNION, Brass Fittings, SAE 45 Deg Flare, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 10137
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![Midland Metal Mfg. 10136 3/8 FEMALE FLARE UNION, Brass Fittings, SAE 45 Deg Flare, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/10136_medium.jpg?v=1718747035)
10136 | 3 / 8 FEMALE FLARE UNION, Brass Fittings, SAE 45 Deg Flare, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 10136
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![Midland Metal Mfg. 38019 1/4 AIR BRAKE UNION-NAB, Brass Fittings, D.O.T. Air Brake Nylon Tubing, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/38019_medium.jpg?v=1718748670)
38019 | 1 / 4 AIR BRAKE UNION-NAB, Brass Fittings, D.O.T. Air Brake Nylon Tubing, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 38019
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![Midland Metal Mfg. 18065 5/16 COMPRESSION UNION, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18065_medium.jpg?v=1718747334)
18065 | 5 / 16 COMPRESSION UNION, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18065
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![Midland Metal Mfg. 38318 3/8 AIR BRAKE UNION, Brass Fittings, D.O.T. Air Brake Hoses/Ends, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/38318_medium.jpg?v=1718748710)
38318 | 3 / 8 AIR BRAKE UNION, Brass Fittings, D.O.T. Air Brake Hoses / Ends, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 38318
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![Midland Metal Mfg. 38022 5/8 AIR BRAKE UNION-NAB, Brass Fittings, D.O.T. Air Brake Nylon Tubing, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/38022_medium.jpg?v=1718748641)
38022 | 5 / 8 AIR BRAKE UNION-NAB, Brass Fittings, D.O.T. Air Brake Nylon Tubing, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 38022
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![Midland Metal Mfg. 28068 1/4 FIP BS UNION, Brass Fittings, Pipe, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/28068_medium.jpg?v=1718747968)
28068 | 1 / 4 FIP BS UNION, Brass Fittings, Pipe, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 28068
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![Midland Metal Mfg. 18071 7/8 COMPRESSION UNION, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18071_medium.jpg?v=1718747348)
18071 | 7 / 8 COMPRESSION UNION, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18071
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![Midland Metal Mfg. 18062 1/8 COMPRESSION UNION, Brass Fittings, Compression, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/18062_25053631-78b9-49ca-a969-8a39ae872203_medium.jpg?v=1718747355)
18062 | 1 / 8 COMPRESSION UNION, Brass Fittings, Compression, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 18062
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![Midland Metal Mfg. 28071 3/4 BARSTOCK UNION | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/28071_medium.jpg?v=1718748005)
28071 | 3 / 4 BARSTOCK UNION | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 28071
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![Midland Metal Mfg. 621200 3/4 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/621200_medium.jpg?v=1718750691)
621200 | 3 / 4 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 621200
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![Midland Metal Mfg. 621000 5/8 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/621000_db0ea5c6-8f2e-49f2-acbd-391b2be8570d_medium.jpg?v=1718750697)
621000 | 5 / 8 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 621000
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![Midland Metal Mfg. 620800 1/2 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/620800_b8c31b02-c498-4be8-9982-4df5ef12fc76_medium.jpg?v=1718750734)
620800 | 1 / 2 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 620800
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![Midland Metal Mfg. 620600 3/8 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/620600_690f61cb-ac63-4061-814b-8bfa0b2b8db3_medium.jpg?v=1718750707)
620600 | 3 / 8 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 620600
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![Midland Metal Mfg. 620532 5/32 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/620532_medium.jpg?v=1718750723)
620532 | 5 / 32 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 620532
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![Midland Metal Mfg. 620400 1/4 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Blackhawk Supply](http://blackhawksupply.com/cdn/shop/files/620400_medium.jpg?v=1718750644)
620400 | 1 / 4 D.O.T. PUSH-IN UNION, Brass Fittings, D.O.T. Push In, Union | Midland Metal Mfg.
Brand: Midland Metal Mfg.
SKU: 620400
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