The Parts Kit,safety Relief Valve, cataloged under National Stock Number 4820-00-985-2188, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 4820-00-985-2188 |
| Primary Part Number | 6-966-3 |
| Item Name | Parts Kit,safety Relief Valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division |
| Status | ACTIVE |
| Component Quantity | 46 |
| Supply Items and Quantities | 86768 SP201-90 BACKUP RING 24,86768 4-1657-1 BACKUP RING 4,86768 SP100-146 O-RING 2,86768 SP100-9 O-RING 16 |
| 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 |
|---|---|
| 6-966-3 PRIMARY | Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division (USA) |
| Reference | Meaning |
|---|---|
| 6-966-3 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-00-985-2188 is a Parts Kit,safety Relief Valve, manufactured by Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-985-2188 has 1 manufacturer part number on file: 6-966-3 (Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division).
1 possible match (shared part number, not a government interchangeability claim): 1730-01-491-9721. Verify interchangeability with system specifications before substitution.
Key specifications for 6-966-3: Component Quantity: 46; Supply Items and Quantities: 86768 SP201-90 BACKUP RING 24,86768 4-1657-1 BACKUP RING 4,86768 SP100-146 O-RING 2,86768 SP100-9 O-RING 16. 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.