The Trap,steam, cataloged under National Stock Number 4730-01-291-4634, 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 Spirax Sarco Inc Dba Spirax Sarco. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4730-01-291-4634 |
| Primary Part Number | 62431 |
| Item Name | Trap,steam |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Spirax Sarco Inc Dba Spirax Sarco |
| Status | ACTIVE |
| Design Type | BUCKET |
| Inlet Connection Type | SOCKET WELDING |
| Maximum Steam Working Pressure | ERR-060 |
| Body Design | ANGLE PATTERN |
| Material | NICKEL ALLOY STRAINER |
| Material | COPPER ALLOY 922 BODY |
| Material | STEEL CORROSION RESISTING ORIFICE |
| Material | COPPER ALLOY 922 CAP |
| Furnished Items | STRAINER |
| Outlet Connection Type | SOCKET WELDING |
| 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 |
|---|---|
| 62431 PRIMARY | Spirax Sarco Inc Dba Spirax Sarco (USA) |
| Reference | Meaning |
|---|---|
| J-979 | D/9 Drawing number reference only Spirax Sarco Inc Dba Spirax Sarco |
NSN 4730-01-291-4634 is a Trap,steam, manufactured by Spirax Sarco Inc Dba Spirax Sarco, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-291-4634 has 1 manufacturer part number on file: 62431 (Spirax Sarco Inc Dba Spirax Sarco).
1 possible match (shared part number, not a government interchangeability claim): 4730-01-382-6709. Verify interchangeability with system specifications before substitution.
Key specifications for 62431: Design Type: BUCKET; Inlet Connection Type: SOCKET WELDING; Maximum Steam Working Pressure: ERR-060; Special Features: ORIFICE SIZE 0.0820 IN. DIA IN. 10 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.