The Valve,safety Relief, cataloged under National Stock Number 4820-01-316-2498, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Jastram Engineering Ltd. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Jastram Engineering Ltd (CAGE L2798) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-316-2498 |
| Primary Part Number | 400-0024 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Jastram Engineering Ltd |
| Status | ACTIVE |
| 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 |
|---|---|
| 400-0024 | Jastram Engineering Ltd (CAN) |
| Reference | Meaning |
|---|---|
| 400-0024 | 3/9 Design control — primary reference Wagner Engineering Ltd |
| 400-0024 | 5/9 Secondary reference Jastram Engineering Ltd |
NSN 4820-01-316-2498 is a Valve,safety Relief, manufactured by Jastram Engineering Ltd, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-316-2498 has 1 manufacturer part number on file: 400-0024 (Jastram Engineering Ltd).
1 possible match (shared part number, not a government interchangeability claim): 6550-01-497-6669. Verify interchangeability with system specifications before substitution.
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.