The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-237-0217, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Dynex/rivett Corp Power Units and Systems. Government technical data includes 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-237-0217 |
| Primary Part Number | 212281 |
| Item Name | Parts Kit,safety Relief Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Dynex/rivett Corp Power Units and Systems |
| Status | ACTIVE |
| Component Quantity | 12 |
| Supply Items and Quantities | PACKING,PREFORMED 12 |
| 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 |
|---|---|
| 212281 PRIMARY | Dynex/rivett Corp Power Units and Systems (USA) |
| Reference | Meaning |
|---|---|
| 212281 | 5/9 Secondary reference Dynex/rivett Inc. |
NSN 4820-01-237-0217 is a Parts Kit,safety Relief Valve, manufactured by Dynex/rivett Corp Power Units and Systems, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-237-0217 has 1 manufacturer part number on file: 212281 (Dynex/rivett Corp Power Units and Systems).
1 possible match (shared part number, not a government interchangeability claim): 5998-01-560-0563. Verify interchangeability with system specifications before substitution.
Key specifications for 212281: Component Quantity: 12; Supply Items and Quantities: PACKING,PREFORMED 12. 2 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.