The Stop Trimmer Valve, cataloged under National Stock Number 2520-00-402-5950, is classified within Federal Supply Class 2520 (Vehicular Power Transmission Components) of the Vehicular Equipment Components group. The manufacturer of record is The W.w. Williams Company, Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2520-00-402-5950 |
| Primary Part Number | 6770541 |
| Item Name | Stop Trimmer Valve |
| FSC / FSG | 2520 / 25 — Vehicular Power Transmission Components |
| Manufacturer | The W.w. Williams Company, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | STEEL;1.209 IN.O/A LG;0.816 IN.OD OF BODY;0.521 IN.ID;0.045 IN.THK;1.040 IN.FLANGE OD;1.175 IN.INSIDE DEPTH IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 6770541 PRIMARY | The W.w. Williams Company, Llc (USA) |
| 162462H1 | Komatsu America Corp. (USA) |
| Reference | Meaning |
|---|---|
| 897402R1 | 5/9 Secondary reference Navistar International Corporation Dba Navistar |
| 2520004025950 | 5/9 Secondary reference E.c.a Etablissement Centrald'approvisionnement Des Forces Armee |
| 2520004025950 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 6770541 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
| 162462H1 | 5/9 Secondary reference Komatsu American Intl Co |
| 162462 | 5/9 Secondary reference Komatsu American Intl Co |
NSN 2520-00-402-5950 is a Stop Trimmer Valve, manufactured by The W.w. Williams Company, Llc, classified under FSC 2520, Vehicular Power Transmission Components. Status: active.
NSN 2520-00-402-5950 has 2 manufacturer part numbers on file: 6770541 (The W.w. Williams Company, Llc), 162462H1 (Komatsu America Corp.).
1 possible match (shared part number, not a government interchangeability claim): 5895-00-945-4217. Verify interchangeability with system specifications before substitution.
Key specifications for 6770541: General Characteristics Item Description: STEEL;1.209 IN.O/A LG;0.816 IN.OD OF BODY;0.521 IN.ID;0.045 IN.THK;1.040 IN.FLANGE OD;1.175 IN.INSIDE DEPTH IN. 1 specification is documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.