The Valve,safety Relief, cataloged under National Stock Number 4820-01-439-6687, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Walker Power Systems, Inc. Dba Tiernay Turbines. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-439-6687 |
| Primary Part Number | 107470-1 |
| Item Name | Valve,safety Relief |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Walker Power Systems, Inc. Dba Tiernay Turbines |
| 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 |
NSN 4820-01-439-6687 is a Valve,safety Relief, manufactured by Walker Power Systems, Inc. Dba Tiernay Turbines, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-439-6687 has 2 manufacturer part numbers on file: 107470-1 (Walker Power Systems, Inc. Dba Tiernay Turbines), 107470-1 (General Dynamics Robotic Systems Inc Div General Dynamics Land Systems Inc.).
Key specifications for 107470-1: End Item Identification: XM56 SMOKE GENERATOR. 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.