The Trap,steam, cataloged under National Stock Number 4730-01-424-7358, 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 Armstrong International Inc Dba Armstrong Machine Works. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-01-424-7358 |
| Primary Part Number | 983FW300RF1IN .1875 ORIFICE |
| Item Name | Trap,steam |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Armstrong International Inc Dba Armstrong Machine Works |
| Status | ACTIVE |
| Design Type | INVERTED BUCKET |
| Inlet Connection Type | FLANGED |
| Body Design | STRAIGHT PATTERN |
| Material | STEEL BODY |
| Flange Facing Type | RAISED LOCATION NOT OTHERWISE SPECIFIED |
| Flange Bolt Hole Quantity | 4 LOCATION NOT OTHERWISE SPECIFIED |
| Outlet Connection Type | FLANGED |
| 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 |
|---|---|
| 983FW300RF1IN .1875 ORIFICE PRIMARY | Armstrong International Inc Dba Armstrong Machine Works (USA) |
| Reference | Meaning |
|---|---|
| D-763-5 .1875 ORIFICE | 5/9 Secondary reference Armstrong International Inc Dba Armstrong Machine Works |
NSN 4730-01-424-7358 is a Trap,steam, manufactured by Armstrong International Inc Dba Armstrong Machine Works, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-01-424-7358 has 1 manufacturer part number on file: 983FW300RF1IN .1875 ORIFICE (Armstrong International Inc Dba Armstrong Machine Works).
Key specifications for 983FW300RF1IN .1875 ORIFICE: Design Type: INVERTED BUCKET; Inlet Connection Type: FLANGED; Special Features: 0.1875 IN. ORIFICE IN; Body Design: STRAIGHT PATTERN. 7 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.