The Valve,safety Relief, cataloged under National Stock Number 4820-01-238-5742, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Prk Industries Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Prk Industries Inc (CAGE 58843) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-238-5742 |
| Primary Part Number | 64-XG-7-R PIECE 21 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Prk Industries Inc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| 64-XG-7-R PIECE 21 PRIMARY | Prk Industries Inc (USA) |
NSN 4820-01-238-5742 is a Valve,safety Relief, manufactured by Prk Industries Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-238-5742 has 1 manufacturer part number on file: 64-XG-7-R PIECE 21 (Prk Industries Inc).
1 possible match (shared part number, not a government interchangeability claim): 4820-01-244-2369. Verify interchangeability with system specifications before substitution.
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.