The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-01-086-9983, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-01-086-9983 |
| Item Name | Parts Kit,safety Relief Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Status | ACTIVE |
| Component Quantity | 5 |
| End Item Source | 02249 |
| Supply Items and Quantities | 02249 1136-001 BALL GUIDE 1; 02249 1783-001 BACK UP WASHER 1; 02249 1698-001 SEAL O RING 1; 02249 2709-001 SEAL O RING RELIEF BODY 1; 02249 1295-001 SCREW SEAL WASHER 1 |
| End Item Name | PRESSURE RELIEF VALVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| K7004 | 3/9 Design control — primary reference Parker Hannifin Corporation Dba Gresen Hydraulics Div Hydraulic Valve Division |
| K7004 | C/1 Advisory reference — outside the item-of-supply concept Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
NSN 4820-01-086-9983 is a Parts Kit,safety Relief Valve, classified under FSC 4820, Valves, Nonpowered. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5950-01-323-1666. Verify interchangeability with system specifications before substitution.
Key specifications for 4820-01-086-9983: Component Quantity: 5; End Item Source: 02249; Supply Items and Quantities: 02249 1136-001 BALL GUIDE 1; 02249 1783-001 BACK UP WASHER 1; 02249 1698-001 SEAL O RING 1; 02249 2709-001 SEAL O RING RELIEF BODY 1; 02249 1295-001 SCREW SEAL WASHER 1; End Item Name: PRESSURE RELIEF VALVE. 4 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.