The Valve,safety Relief, cataloged under National Stock Number 4820-01-669-4930, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Pti Technologies Inc.. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-669-4930 |
| Primary Part Number | 6658220-001 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Pti Technologies Inc. |
| 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 |
|---|---|
| 6658220-001 PRIMARY | Pti Technologies Inc. (USA) |
NSN 4820-01-669-4930 is a Valve,safety Relief, manufactured by Pti Technologies Inc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-669-4930 has 1 manufacturer part number on file: 6658220-001 (Pti Technologies Inc.).
Key specifications for 6658220-001: Part Name Assigned by Controlling Agency: POPPET RELIEF VALVE. 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.