The Valve,safety Relief, cataloged under National Stock Number 4820-01-509-4955, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hamilton Sundstrand Corporation Dba Collins Aerospace. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-509-4955 |
| Primary Part Number | NV822297-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hamilton Sundstrand Corporation Dba Collins Aerospace |
| 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 |
|---|---|
| S9515-AL-MMA-010,7-51 ITEM 3 | Naval Sea Systems Command (USA) |
| NV822297-1 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| NV822201 FIND 56 PRIMARY | Hamilton Sundstrand Corporation Dba Collins Aerospace (USA) |
| S9515-AL-MMA-010,7-33 ITEM 9 | Naval Sea Systems Command (USA) |
NSN 4820-01-509-4955 is a Valve,safety Relief, manufactured by Hamilton Sundstrand Corporation Dba Collins Aerospace, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-509-4955 has 4 manufacturer part numbers on file: S9515-AL-MMA-010,7-51 ITEM 3 (Naval Sea Systems Command), NV822297-1 (Hamilton Sundstrand Corporation Dba Collins Aerospace), NV822201 FIND 56 (Hamilton Sundstrand Corporation Dba Collins Aerospace), S9515-AL-MMA-010,7-33 ITEM 9 (Naval Sea Systems Command).
Key specifications for NV822297-1: Part Name Assigned by Controlling Agency: VALVE,RELIEF; End Item Identification: MANIFOLD, GPU, NUMBER 140. 0 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.