The Valve,transmission, cataloged under National Stock Number 4820-01-166-5271, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is The W.w. Williams Company, Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Valve,transmission |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | The W.w. Williams Company, Llc (CAGE 6H244) |
| Parameter | Value |
|---|---|
| NSN | 4820-01-166-5271 |
| Primary Part Number | 6881913 |
| Item Name | Valve,transmission |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | The W.w. Williams Company, Llc |
| 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 |
|---|---|
| 6881913 PRIMARY | The W.w. Williams Company, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4820011665271 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 6881913 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 4820-01-166-5271 is a Valve,transmission, manufactured by The W.w. Williams Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-166-5271 has 1 manufacturer part number on file: 6881913 (The W.w. Williams Company, Llc).
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.