The Valve,safety Relief, cataloged under National Stock Number 4820-01-199-4473, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Provision, Inc. Dba Provision Inc. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | Provision, Inc. Dba Provision Inc (CAGE 14487) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-199-4473 |
| Primary Part Number | 105318 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Provision, Inc. Dba Provision 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 |
|---|---|
| 105318 PRIMARY | Provision, Inc. Dba Provision Inc (USA) |
| Reference | Meaning |
|---|---|
| 520B-2MP-75 | 5/9 Secondary reference Provision, Inc. Dba Provision Inc |
| 4820PL0550560 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 4820-01-199-4473 is a Valve,safety Relief, manufactured by Provision, Inc. Dba Provision Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-199-4473 has 1 manufacturer part number on file: 105318 (Provision, Inc. Dba Provision Inc).
3 possible matches (shared part number, not a government interchangeability claim): 5895-01-209-8859, 1680-01-358-0189, 5331-01-690-8279. 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.