The Adapter,straight,pipe to Gas Fit, cataloged under National Stock Number 4730-01-159-8630, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Western Enterprises Div of Scott and Fetzer Co. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-159-8630 |
| Primary Part Number | B-50 |
| Item Name | Adapter,straight,pipe to Gas Fit |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Western Enterprises Div of Scott and Fetzer Co |
| Status | ACTIVE |
| Connection Style | PLAIN (PIPE) FIRST END |
| Connection Style | INVERTED FLARE (GAS FITTING) SECOND END |
| Nominal Overall Length | 1.650 INCHES IN |
| Connection Type | THREADED EXTERNAL PIPE FIRST END |
| Connection Type | THREADED EXTERNAL GAS FITTING SECOND END |
| Operating Pressure | 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Nominal Thread Size | 0.903 INCHES SECOND END IN |
| Nominal Thread Size | 0.250 INCHES FIRST END IN |
| Seat Angle | 37.0 DEGREES SECOND END |
| Maximum Operating Temp | 160.0 FAHRENHEIT SINGLE RESPONSE DEGF |
| Media for Which Designed | OXYGEN, GASEOUS SINGLE RESPONSE |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | NGO SECOND END |
| Thread Series Designator | NPT FIRST END |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 1426AS121-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| B-50 PRIMARY | Western Enterprises Div of Scott and Fetzer Co (USA) |
| Reference | Meaning |
|---|---|
| A591 | 5/9 Secondary reference Superior Products Div Opw Ces |
NSN 4730-01-159-8630 is a Adapter,straight,pipe to Gas Fit, manufactured by Western Enterprises Div of Scott and Fetzer Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-159-8630 has 2 manufacturer part numbers on file: 1426AS121-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), B-50 (Western Enterprises Div of Scott and Fetzer Co).
1 possible match (shared part number, not a government interchangeability claim): 5962-01-435-8031. Verify interchangeability with system specifications before substitution.
Key specifications for B-50: Connection Style: PLAIN (PIPE) FIRST END; Connection Style: INVERTED FLARE (GAS FITTING) SECOND END; Nominal Overall Length: 1.650 INCHES IN; Connection Type: THREADED EXTERNAL PIPE FIRST END. 14 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.