The Valve,safety Relief, cataloged under National Stock Number 4820-01-273-9502, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is United Dynamics, Inc. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-273-9502 |
| Primary Part Number | 20103000 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | United Dynamics, Inc |
| Status | ACTIVE |
| Supplementary Features | PPL TO ACFT,TYPE F-16C/D |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 20103000 | United Dynamics, Inc (USA) |
| Reference | Meaning |
|---|---|
| 2497164-1 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-273-9502 is a Valve,safety Relief, manufactured by United Dynamics, Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-273-9502 has 1 manufacturer part number on file: 20103000 (United Dynamics, Inc).
Key specifications for 20103000: Supplementary Features: PPL TO ACFT,TYPE F-16C/D; Special Features: WITH SETSCREW,P/N 2497146-1,SET RELIEF OPERATING,AT 50 PSI,PLUS OR MINUS 10. 1 specification is 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.
NSN 4820-01-273-9502 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.