Hardware: High-pressure Fittings
Don’t be fooled by Brass Hardware. All if our brass hardware is specifically designed for use with High Pressure applications. All fittings are pre-cleaned for Oxygen use per MH ESR-008.
Use of non rated high pressure hardware may result in injury or death.
All of our hardware have an operating pressure of at least 3,000 psi (207 bar)
NOTE: You will see big swings in prices on most fittings especially in Brass.
This is due to material and labor price increases.
Some hardware fittings have been discontinued or not available in Brass.
In those cases we have had to switch to Stainless Steel as a alternative, if available.
The lower prices you see on our hardware fittings is most likely older stock.
Everything we order in as new stock has had huge price increases.
- Display 200 Products per page
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Gas Fittings, CGA-540 (12)
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Gas Fittings, DIN 477-9 (4)
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Compression Fittings (29)
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In-Line Valves (3)
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Pipe-JIC-SAE Fittings (42)
High Pressure
| Image | SKU | Name | Summary | Price | Buy |
|---|---|---|---|---|---|
 | 00HDW-0214-ST | Ferrule Set, 3/16" Compression, Brass | Brass 3/16″ Ferrule and Ring Compression Set. | $9.00 | |
 | 00HDW-0370-01 | CGA-540 Nipple w/ O-ring | Nipple CGA-540, 1/4 NPT-M w/filter & o-ring, Brass | $19.50 | |
 | 00HDW-0108-05 | SAE-4-M To 1/8 Compression, Brass, modified with #10 filter | Brass SAE-4-M to 1/8″ Compression Fitting with Filter. | $80.00 | |
 | 00HDW-0212-BB | Ferrule Back, 1/8" Compression, Brass | Brass 1/8″ Ferrule Back Compression Fitting. | $5.50 | |
 | 00HDW-0304-00 | Union 1/4 NPT-F to 1/4 NPT-F, Brass | Brass Union 1/4″ NPT-F to 1/4″ NPT-F | $26.50 | |
 | 00HDW-0212-FB | Ferrule Front, 1/8" Compression, Brass | Brass 1/8″ Ferrule Front Compression Fitting. | $5.50 | |
 | 09001-0011-90 | O-RING 2-011 V90 | Replacement O-Ring for all CGA-540 Regulator & Trans-fill. | $1.00 | |
 | 00HDW-0136-00 | Tube Fitting 1/4 NPT-F To 1/8 Compression, Brass | Brass 1/4″ NPT-F to 1/8″ Tube Compression Fitting. | $20.00 | |
 | 00HDW-0154-00 | Elbow 1/8 NPT-M To 3/16, Brass | Brass Elbow 1/8″ NPT-M to 3/16″ Compression Fitting. | $25.00 | |
 | 00HDW-0315-00 | SAE-4 (F) to 1/8 NPT-M, Brass | Brass Adaptor 1/8″ NPT-M to -4 SAE-F | $69.00 | |
 | 00HDW-0214-00 | Ferrule & Nut Set, 3/16" Compression, Brass | Brass 3/16″ Ferrule & Nut Set Compression Fitting. | $13.50 | |
 | 00HDW-0336-00 | 1/4 NPT-M Tee Brass | 1/4 NPT-M tee brass | $29.00 | |
 | 00HDW-0122-01 | Tube Fitting 1/8 NPT-M to 3/16" Compression, Stainless Steel | S.S. 1/8″ NPT-M to 3/16″ Tube Compression Fitting. | $35.00 | |
 | 00HDW-0373-02 | DIN 477-9 Nipple (New Euro Style) | Nipple DIN 477-9 to 1/4 NPT-M | $95.00 | |
 | 00HDW-0374-00 | DIN 477-9 Socket | DIN 477-9 socket, 1/4 NPT-F | $66.00 | |
 | 00HDW-0206-00 | Tee Union 3/16 in. 3-way, Brass | Brass Tee 3/16″ Tube, 3-Way Compression Fitting. | $35.00 | |
 | 00HDW-0124-01 | Tube Fitting 1/8" NPT-F to 3/16" Compression-Stainless Steel | S.S 1/8″ NPT-F to 3/16″ Tube Compression Fitting. | $42.00 | |
 | 00HDW-0145-00 | Tube Fitting 1/4 NPT-F To 3/16, Brass | Brass 1/4″ NPT-F to 3/16″ Tube Compression Fitting. | $82.00 | |
 | 00HDW-1321-00 | JIC-4 to JIC-4 Flare, SS | NEW ADD | $45.00 | |
 | 00HDW-0364-00 | Reducing Adapter for steel cylinders | Reducing Adapter, 1 in NGT x 3/4-16 UNF | $60.00 | |
 | 00HDW-0322-00 | Elbow 1/8 NPT-F to 1/8 NPT-F, Brass | Brass Elbow 1/8″ NPT-F to 1/8″ NPT-F | $14.00 | |
 | 00HDW-0376-00 | DIN 477-9 Nut | Nut-DIN-477-9 | $45.00 | |
 | 00HDW-0348-00 | Cross 1/4 NPT-F, Brass | Brass Cross 1/4″ NPT-F | $65.00 | |
 | 00HDW-0362-00 | CGA-540 Hand-Grip Nut | nut CGA-540 with hand-grip | $30.00 | |
 | 00HDW-0334-00 | Street Tee 1/4 NPT, Brass | Brass 1/4″ NPT Street Tee | $79.00 | |
 | 00HDW-0356-00 | CGA-540 Socket, 1/4 NPT-F | CGA-540 Socket | $19.00 | |
 | 00HDW-1381-02 | SAE-4 (M) to JIC-4 Flare, Steel | SAE-4 (M) to JIC-4 Flare Steel Fitting. | $6.25 | |
 | 00HDW-0324-00 | Elbow 1/4 NPT-M to F, Brass | Brass Elbow 1/4″ NPT-M to 1/4″ NPT-F | $24.00 | |
 | 00HDW-0204-00 | Tee Union 1/8 in. 3-way, Brass | Brass Tee 1/8″ Tube, 3-Way Compression Fitting. | $45.00 | |
 | 00HDW-1382-00 | JIC-4 (M) to 1/8 BSPP, Steel | 1/8″ BSPP to JIC-4 Flare Steel Fitting. | $25.00 | |
 | 00HDW-0370-00 | CGA-540 Nipple | Nipple CGA-540, 1/4 NPT-M w/filter, Brass | $13.00 | |
 | 00HDW-0302-00 | Union 1/8 NPT-M To 1/8 NPT-M, Brass | Brass Union 1/8″ NPT-M to 1/8″ NPT-M | $10.00 | |
 | 00HDW-0340-00 | Union Tee 1/8 NPT-F, Brass | Brass Union Tee 1/8″ NPT-F | $48.00 | |
 | 00HDW-0338-00 | 1/4 Branch Tee, Brass | 1/4 Branch Tee, Brass | $16.00 | |
 | 00HDW-0310-00 | Adapter 1/8 NPT-M to 1/4 NPT-M, Brass | Brass Adapter: 1/8″ NPT-M to 1/4″ NPT-M | $15.00 | |
 | 00HDW-0316-00 | Elbow 1/4 NPT-M to 1/4 NPT-M, Brass | Brass Elbow 1/4″ NPT-M to 1/4″ NPT-M | $26.50 | |
 | 00HDW-1383-02 | SAE-4 (M) to JIC-4, 90º, Steel | SAE-4 to JIC-4 90′ Steel Fitting. | $25.00 | |
 | 00HDW-0216-00 | Ferrule & Nut Set, 1/8" Compression, Stainless Steel | Stainless Steel 1/8″ Ferrule & Nut Set Compression Fitting. | $16.35 | |
 | 00HDW-0320-00 | Elbow 1/4 NPT-F to 1/4 NPT-F, Brass | Brass Elbow 1/4″ NPT-F to 1/4″ NPT-F | $35.00 | |
 | 00HDW-0138-00 | Tube Fitting 1/4 NPT-M to 3/16, Brass | Brass 1/4″ NPT-M to 3/16″ Tube Compression Fitting. | $25.00 | |
 | 00HDW-0395-00 | Valve, Line, Panel Mount | 1/4″ NPT-F Inlet – 1/4″ NPT-M Outlet Bulk Head Mounted 6000 PSI Working Pressure | $89.00 | |
 | 00HDW-0174-00 | Tube Union 1/8 to 1/8, Brass | Brass Tube Union 1/8″ to 1/8″ Compression Fitting. | $27.00 | |
 | 00HDW-0218-00 | Ferrule & Nut Set, 3/16" Compression, Stainless Steel | Stainless Steel 3/16″ Ferrule & Nut Set Compression Fitting. | $27.95 | |
 | 00HDW-0214-BB | Ferrule Back, 3/16" Compression, Brass | Brass 3/16″ Ferrule Back Compression Fitting. | $4.50 | |
 | 00HDW-0120-00 | Tube Fitting 1/8 NPT-F To 1/8 Compression, Brass | Brass 1/8″ NPT-F to 1/8″ Tube Compression Fitting. | $30.00 | |
 | 00HDW-0113-00 | JIC-4 (M)-1/8NPT(F), Brass | Brass 4 JIC-M to 1/8″ NPT-F Compression Fitting. | $20.00 | |
 | 00HDW-0318-00 | Elbow 1/8 NPT-M to 1/8 NPT-M, Brass | Brass Elbow 1/8″ NPT-M to 1/8″ NPT-M | $15.00 | |
 | 00HDW-0118-00 | 1/8 NPT-M To 1/8 Compression, Brass | Brass 1/8″ NPT-M to 1/8″ Tube Compression Fitting. | $24.00 | |
 | 00HDW-0312-00 | Adapter 1/4 NPT-F to 1/8 NPT-M, Brass | Brass Adapter: 1/4″ NPT-F to 1/8″ NPT-M | $14.00 | |
 | 00HDW-0355-00 | 1/4 NPT-F Bulkhead .99, Brass | Brass 1/4″ NPT-F Bulkhead .99 Fitting | $12.50 | |
 | 00HDW-0358-00 | Nut CGA-540 Brass | Nut, CGA-540 brass | $7.15 | |
 | 00HDW-0300-00 | Union 1/4 NPT-M To 1/4 NPT-M, Brass | Brass Union 1/4″ NPT-M to 1/4″ NPT-M | $15.00 | |
 | 00HDW-0332-00 | Union Tee 1/4 NPT-F, Brass | Brass Union Tee 1/4″ NPT-F | $39.00 | |
 | 00HDW-0378-00 | TEE coupler CGA-540 (brass) | TEE coupler CGA-540 (brass) | $59.00 | |
 | 00HDW-0104-01 | SAE-2-M To 1/8 Compression, Stainless Steel | S.S. SAE-2-M to 1/8″ Compression Fitting. | $15.95 | |
 | 00HDW-0397-02 | Valve line w/bleed | Inline Bleed Valve
| $179.00 | |
 | 00HDW-0176-01 | Tube Union 3/16 to 3/16, SS | Brass Tube Union 3/16″ to 3/16″ Compression Fitting. | $30.00 | |
 | 00HDW-0152-00 | Elbow 1/8 NPT-F To 1/8, Brass | Brass Elbow 1/8″ NPT-F to 1/8″ Compression Fitting. | $40.00 | |
 | 00HDW-0352-00 | Union 1/8 NPT-M to F, Brass | Brass Union 1/8″ NPT-M to 1/8″ NPT-F | $21.50 | |
 | 00HDW-0397-01 | Valve, Line, Main Transfer | 1/4″ NPT-F Inlet – 1/4″ NPT-M Outlet 6000 PSI Working Pressure | $100.00 | |
 | 00HDW-0212-00 | Ferrule & Nut Set, 1/8" Compression, Brass | Brass 1/8″ Ferrule & Nut Set Compression Fitting. | $19.25 | |
 | 00HDW-0314-00 | Union Reducing 1/4 NPT-M To 1/8 NPT-F, Brass | Brass Reducing Union 1/4″ NPT-M to 1/8″ NPT-F | $7.15 | |
 | 00HDW-0350-00 | Cross 1/8 NPT-F, Brass | Brass Cross 1/8″ NPT-F | $17.00 | |
 | 00VEN-0112-01 | PTFE Tape, Oxygen Use Approved | Aviation oxygen approved high density PTFE tape. | $4.95 | |
 | 00HDW-0108-01 | SAE-4-M To 1/8" Compression, Stainless Steel | S.S. SAE-4-M to 1/8″ Compression Fitting. | $75.00 | |
 | 00HDW-0306-00 | Union 1/8 NPT-F, Brass | Brass Union 1/8″ NPT-F to 1/8″ NPT-F | $19.00 | |
 | 00HDW-0319-00 | JIC-4 (M) to 1/4 NPT-M, Brass | Brass 1/4″ NPT-M to -4 JIC-M | $9.50 | |
 | 00HDW-0214-NB | Ferrule Nut, 3/16, Compression, Brass | Brass 3/16″ Ferrule Nut Compression Fitting. | $5.10 | |
 | 09005-0001-00 | E-Clip Retaining ring for CGA Nipples. | Retaining ring E 5/8 | $1.00 | |
 | 00HDW-0202-00 | JIC-4 (M) to 1/8 NPT-M Brass Tee | Brass Union Tee -4 JIC to 1/8″ NPT-M | $49.95 | |
 | 00HDW-0308-00 | Union Reducing 1/4 NPT-F to 1/8 NPT-F, Brass | Brass Reducing Union 1/4″ NPT-F to 1/8″ NPT-F | $28.00 | |
 | 00HDW-0134-00 | Tube Fitting 1/4" NPT-M to 1/8" Compression, Brass | Brass 1/4″ NPT-M to 1/8″ Tube Compression Fitting. | $23.00 | |
 | 00HDW-0317-00 | JIC-4 (M) to 1/4 NPT-F, Brass | Brass -4 JIC-M to 1/4″ NPT-F | $25.00 | |
 | 00HDW-0329-00 | 1/4 NPT-M to 1/8-F Reducing Elbow | 1/4 NPT-M to 1/8-F Redu. Elbow | $55.00 | |
 | 00HDW-0325-00 | JIC-4 (M) to 1/8 NPT-M Elbow, Brass | Elbow, Brass JIC-4 (M) to 1/8″ NPT-(M) | $23.00 | |
 | 00HDW-0110-00 | SAE-4-M To 3/16 Compression, Brass | Brass SAE-4-M to 3/16″ Compression Fitting. | $28.00 | |
 | 00HDW-0366-02 | Washer, for CGA-870 Cyl. Yoke | Replacement sealing washer for all TA-870 products. | $1.00 | |
 | 00HDW-0182-00 | Tube Union 1/8 TO 1/8 BH, Brass | Brass Bulkhead Union 1/8″ to 1/8″ Compression Fitting. | $21.00 | |
 | 00HDW-0342-00 | Tee Run 1/8 NPT, Brass | Brass Street Tee 1/8″ NPT | $48.75 | |
 | 09001-3113-70 | O-RING 2-113 E70 (DIN) | Replacement O-Ring for all DIN-477#9 regulators & transfill. | $1.00 | |
 | 00HDW-0150-00 | Elbow 1/8 NPT-M To 1/8, Brass | Brass Elbow 1/8″ NPT-M to 1/8″ Compression Fitting. | $35.00 | |
 | 00HDW-0326-00 | Elbow 1/8 NPT-M To 1/8 NPT-F, Brass | Brass Elbow 1/8″ NPT-M to 1/8″ NPT-F | $29.00 | |
 | 00HDW-0321-00 | JIC-4 (M) to 1/8 NPT-M, Union Brass | Brass Union -4 JIC-M to 1/8″ NPT-M | $6.00 | |
 | 00HDW-0366-00 | CGA-870 Yoke | CGA-870 Yoke 1/4″ NPT-M with sealing washer | $89.00 | |
 | 00HDW-0212-ST | Ferrule Set, 1/8" Compression, Brass | Brass 1/8″ Ferrule and Ring Compression Set. | $9.00 | |
 | 00HDW-0370-04 | CGA-540 Nipple w/ O-ring, 1/8 NPT-F | Nipple CGA-540 with o-ring 1/8 NPT-F | $29.00 | |
 | 00HDW-0346-00 | Tee Branch 1/8 NPT, Brass | Brass Branch Tee 1/8″ NPT | $39.00 | |
 | 00HDW-0360-00 | CGA-540 Socket, 1/4 NPT-M | 1/4 NPT-M To CGA-540-S brass | $19.00 | |
 | 00HDW-0351-00 | 1/8 NPT-F Bulkhead .99, Brass | Brass 1/8″ NPT-F Bulkhead .99 Fitting | $39.00 | |
 | 00HDW-0113-05 | SAE-4 (M) to 1/8 inch NPT-F, Brass | SAE-4M to 1/8 NPT-F, Brass (with O-Ring) | $23.00 | |
 | 00HDW-1381-01 | SAE-4 (M) to JIC-4 Flare, SS | SAE-4 (M) to JIC-4 Flare SS Fitting. | $34.00 |