The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-496-7925, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is F.c.kingston Co. Dba Storm Manufacturing. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-496-7925 |
| Primary Part Number | 128A-2-180 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | F.c.kingston Co. Dba Storm Manufacturing |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 128A-2-180 PRIMARY | F.c.kingston Co. Dba Storm Manufacturing (USA) |
| Reference | Meaning |
|---|---|
| 128-1/4-200# | 5/9 Secondary reference F.c.kingston Co. Dba Storm Manufacturing |
| 128A2000 | 5/9 Secondary reference F.c.kingston Co. Dba Storm Manufacturing |
NSN 4820-01-496-7925 is a Valve,relief,pressure and Temper, manufactured by F.c.kingston Co. Dba Storm Manufacturing, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-496-7925 has 1 manufacturer part number on file: 128A-2-180 (F.c.kingston Co. Dba Storm Manufacturing).
1 possible match (shared part number, not a government interchangeability claim): 5996-01-579-4849. Verify interchangeability with system specifications before substitution.
Key specifications for 128A-2-180: End Item Identification: SPECIAL AIRCRAFT AND ENGINE TOOL AND SUPPORT EQUIPMENT/PARTS. 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.
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.