The Valve,relief,pressure and Temper, cataloged under National Stock Number 4820-01-295-6181, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Atlas Polar Company Limited Div Atlas Polar Company Ltd. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Atlas Polar Company Limited Div Atlas Polar Company Ltd (CAGE 36513); General Dynamics Land Systems Canadacorp (CAGE 56161) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-295-6181 |
| Primary Part Number | B-1VM4 |
| Item Name | Valve,relief,pressure and Temper |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Atlas Polar Company Limited Div Atlas Polar Company Ltd |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
NSN 4820-01-295-6181 is a Valve,relief,pressure and Temper, manufactured by Atlas Polar Company Limited Div Atlas Polar Company Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-295-6181 has 2 manufacturer part numbers on file: B-1VM4 (Atlas Polar Company Limited Div Atlas Polar Company Ltd), 10560103 (General Dynamics Land Systems Canadacorp).
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.