The Stem,fluid Valve, cataloged under National Stock Number 4820-00-651-0636, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Westinghouse Electric Corp. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-651-0636 |
| Primary Part Number | 98J178-7 |
| Item Name | Stem,fluid Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Westinghouse Electric Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL B — Remove Demilitarization Key Points |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 98J178-7 | Westinghouse Electric Corp (USA) |
| 98J178PC7 | Westinghouse Electric Corp (USA) |
| Reference | Meaning |
|---|---|
| 98J178-7 | 5/9 Secondary reference U.S. Government activity |
| 98J178-7 | 3/2 Design control — primary reference U.S. Government activity |
| 98J178PC7 | 3/2 Design control — primary reference U.S. Government activity |
| 98J178PC7 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-651-0636 is a Stem,fluid Valve, manufactured by Westinghouse Electric Corp, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-651-0636 has 2 manufacturer part numbers on file: 98J178-7 (Westinghouse Electric Corp), 98J178PC7 (Westinghouse Electric Corp).
Key specifications for 98J178-7: End Item Identification: COMBAT SYSTEM SUPPORT EQUIPMENT; STEAM TURBINE, SHIPS PROPULSION SYSTEM. 0 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.
NSN 4820-00-651-0636 has DEMIL Code B. Demilitarization may be required before disposal or transfer to non-military entities.
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.