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 300 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-0174-00 | Tube Union 1/8 to 1/8, Brass | Brass Tube Union 1/8″ to 1/8″ Compression Fitting. | $27.00 | |
 | 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-0216-00 | Ferrule & Nut Set, 1/8" Compression, Stainless Steel | Stainless Steel 1/8″ Ferrule & Nut Set Compression Fitting. | $16.35 | |
 | 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-0362-00 | CGA-540 Hand-Grip Nut | nut CGA-540 with hand-grip | $30.00 | |
 | 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-0370-01 | CGA-540 Nipple w/ O-ring | Nipple CGA-540, 1/4 NPT-M w/filter & o-ring, Brass | $19.50 | |
 | 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-0212-00 | Ferrule & Nut Set, 1/8" Compression, Brass | Brass 1/8″ Ferrule & Nut Set Compression Fitting. | $19.25 | |
 | 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-0315-00 | SAE-4 (F) to 1/8 NPT-M, Brass | Brass Adaptor 1/8″ NPT-M to -4 SAE-F | $69.00 | |
 | 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-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-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-0336-00 | 1/4 NPT-M Tee Brass | 1/4 NPT-M tee brass | $29.00 | |
 | 00HDW-0348-00 | Cross 1/4 NPT-F, Brass | Brass Cross 1/4″ NPT-F | $65.00 | |
 | 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 | |
 | 00VEN-0112-01 | PTFE Tape, Oxygen Use Approved | Aviation oxygen approved high density PTFE tape. | $4.95 | |
 | 00HDW-0350-00 | Cross 1/8 NPT-F, Brass | Brass Cross 1/8″ NPT-F | $17.00 | |
 | 00HDW-0360-00 | CGA-540 Socket, 1/4 NPT-M | 1/4 NPT-M To CGA-540-S brass | $19.00 | |
 | 00HDW-0346-00 | Tee Branch 1/8 NPT, Brass | Brass Branch Tee 1/8″ NPT | $39.00 | |
 | 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-0204-00 | Tee Union 1/8 in. 3-way, Brass | Brass Tee 1/8″ Tube, 3-Way Compression Fitting. | $45.00 | |
 | 00HDW-0113-00 | JIC-4 (M)-1/8NPT(F), Brass | Brass 4 JIC-M to 1/8″ NPT-F Compression Fitting. | $20.00 | |
 | 00HDW-0397-01 | Valve, Line, Main Transfer | 1/4″ NPT-F Inlet – 1/4″ NPT-M Outlet 6000 PSI Working Pressure | $100.00 | |
 | 00HDW-1321-00 | JIC-4 to JIC-4 Flare, SS | NEW ADD | $45.00 | |
 | 00HDW-0358-00 | Nut CGA-540 Brass | Nut, CGA-540 brass | $7.15 | |
 | 00HDW-0306-00 | Union 1/8 NPT-F, Brass | Brass Union 1/8″ NPT-F to 1/8″ NPT-F | $19.00 | |
 | 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-0324-00 | Elbow 1/4 NPT-M to F, Brass | Brass Elbow 1/4″ NPT-M to 1/4″ NPT-F | $24.00 | |
 | 00HDW-0214-BB | Ferrule Back, 3/16" Compression, Brass | Brass 3/16″ Ferrule Back Compression Fitting. | $4.50 | |
 | 00HDW-0214-00 | Ferrule & Nut Set, 3/16" Compression, Brass | Brass 3/16″ Ferrule & Nut Set Compression Fitting. | $13.50 | |
 | 00HDW-0364-00 | Reducing Adapter for steel cylinders | Reducing Adapter, 1 in NGT x 3/4-16 UNF | $60.00 | |
 | 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-1383-02 | SAE-4 (M) to JIC-4, 90º, Steel | SAE-4 to JIC-4 90′ Steel Fitting. | $25.00 | |
 | 00HDW-0218-00 | Ferrule & Nut Set, 3/16" Compression, Stainless Steel | Stainless Steel 3/16″ Ferrule & Nut Set Compression Fitting. | $27.95 | |
 | 00HDW-0355-00 | 1/4 NPT-F Bulkhead .99, Brass | Brass 1/4″ NPT-F Bulkhead .99 Fitting | $12.50 | |
 | 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-0104-01 | SAE-2-M To 1/8 Compression, Stainless Steel | S.S. SAE-2-M to 1/8″ Compression Fitting. | $15.95 | |
 | 00HDW-0366-00 | CGA-870 Yoke | CGA-870 Yoke 1/4″ NPT-M with sealing washer | $89.00 | |
 | 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-0206-00 | Tee Union 3/16 in. 3-way, Brass | Brass Tee 3/16″ Tube, 3-Way Compression Fitting. | $35.00 | |
 | 00HDW-0110-00 | SAE-4-M To 3/16 Compression, Brass | Brass SAE-4-M to 3/16″ Compression Fitting. | $28.00 | |
 | 00HDW-0373-02 | DIN 477-9 Nipple (New Euro Style) | Nipple DIN 477-9 to 1/4 NPT-M | $95.00 | |
 | 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-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 | |
 | 09005-0001-00 | E-Clip Retaining ring for CGA Nipples. | Retaining ring E 5/8 | $1.00 | |
 | 00HDW-0212-BB | Ferrule Back, 1/8" Compression, Brass | Brass 1/8″ Ferrule Back Compression Fitting. | $5.50 | |
 | 00HDW-0351-00 | 1/8 NPT-F Bulkhead .99, Brass | Brass 1/8″ NPT-F Bulkhead .99 Fitting | $39.00 | |
 | 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-1381-02 | SAE-4 (M) to JIC-4 Flare, Steel | SAE-4 (M) to JIC-4 Flare Steel Fitting. | $6.25 | |
 | 00HDW-0370-00 | CGA-540 Nipple | Nipple CGA-540, 1/4 NPT-M w/filter, Brass | $13.00 | |
 | 00HDW-0176-01 | Tube Union 3/16 to 3/16, SS | Brass Tube Union 3/16″ to 3/16″ Compression Fitting. | $30.00 | |
 | 00HDW-0374-00 | DIN 477-9 Socket | DIN 477-9 socket, 1/4 NPT-F | $66.00 | |
 | 00HDW-0317-00 | JIC-4 (M) to 1/4 NPT-F, Brass | Brass -4 JIC-M to 1/4″ NPT-F | $25.00 | |
 | 00HDW-0338-00 | 1/4 Branch Tee, Brass | 1/4 Branch Tee, Brass | $16.00 | |
 | 00HDW-0397-02 | Valve line w/bleed | Inline Bleed Valve
| $179.00 | |
 | 00HDW-0342-00 | Tee Run 1/8 NPT, Brass | Brass Street Tee 1/8″ NPT | $48.75 | |
 | 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-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-0108-01 | SAE-4-M To 1/8" Compression, Stainless Steel | S.S. SAE-4-M to 1/8″ Compression Fitting. | $75.00 | |
 | 00HDW-0332-00 | Union Tee 1/4 NPT-F, Brass | Brass Union Tee 1/4″ NPT-F | $39.00 | |
 | 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-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-0352-00 | Union 1/8 NPT-M to F, Brass | Brass Union 1/8″ NPT-M to 1/8″ NPT-F | $21.50 | |
 | 00HDW-0214-ST | Ferrule Set, 3/16" Compression, Brass | Brass 3/16″ Ferrule and Ring Compression Set. | $9.00 | |
 | 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-0319-00 | JIC-4 (M) to 1/4 NPT-M, Brass | Brass 1/4″ NPT-M to -4 JIC-M | $9.50 | |
 | 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-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-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-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-0356-00 | CGA-540 Socket, 1/4 NPT-F | CGA-540 Socket | $19.00 | |
 | 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-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-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-0212-FB | Ferrule Front, 1/8" Compression, Brass | Brass 1/8″ Ferrule Front Compression Fitting. | $5.50 | |
 | 00HDW-1381-01 | SAE-4 (M) to JIC-4 Flare, SS | SAE-4 (M) to JIC-4 Flare SS Fitting. | $34.00 | |
 | 00HDW-1382-00 | JIC-4 (M) to 1/8 BSPP, Steel | 1/8″ BSPP to JIC-4 Flare Steel Fitting. | $25.00 | |
 | 00HDW-0212-ST | Ferrule Set, 1/8" Compression, Brass | Brass 1/8″ Ferrule and Ring Compression Set. | $9.00 | |
 | 00HDW-0214-NB | Ferrule Nut, 3/16, Compression, Brass | Brass 3/16″ Ferrule Nut Compression Fitting. | $5.10 | |
 | 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-0378-00 | TEE coupler CGA-540 (brass) | TEE coupler CGA-540 (brass) | $59.00 | |
 | 00HDW-0366-02 | Washer, for CGA-870 Cyl. Yoke | Replacement sealing washer for all TA-870 products. | $1.00 | |
 | 09001-3113-70 | O-RING 2-113 E70 (DIN) | Replacement O-Ring for all DIN-477#9 regulators & transfill. | $1.00 | |
 | 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-0376-00 | DIN 477-9 Nut | Nut-DIN-477-9 | $45.00 | |
 | 09001-0011-90 | O-RING 2-011 V90 | Replacement O-Ring for all CGA-540 Regulator & Trans-fill. | $1.00 | |
 | 00HDW-0334-00 | Street Tee 1/4 NPT, Brass | Brass 1/4″ NPT Street Tee | $79.00 | |
 | 00HDW-0340-00 | Union Tee 1/8 NPT-F, Brass | Brass Union Tee 1/8″ NPT-F | $48.00 | |
 | 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 |