The Regulator,vehicle Window, cataloged under National Stock Number 2540-01-158-8554, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is General Motors Llc Dba General Motors Llc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Item Name | Regulator,vehicle Window |
| FSC / FSG | 2540 — Vehicular Furniture and Accessories (FSG 25) |
| Manufacturers | General Motors Llc Dba General Motors Llc (CAGE 7X677); Tri Component Product Corp. Dba Tri Component Product Corp (CAGE 1T973) |
| Parameter | Value |
|---|---|
| NSN | 2540-01-158-8554 |
| Primary Part Number | 15641780 |
| Item Name | Regulator,vehicle Window |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 15641780 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| T15641780 PRIMARY | Tri Component Product Corp. Dba Tri Component Product Corp (USA) |
| Reference | Meaning |
|---|---|
| 327011 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 2540011588554 | 5/9 Secondary reference E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 15641780 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 2540-01-158-8554 is a Regulator,vehicle Window, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-158-8554 has 2 manufacturer part numbers on file: 15641780 (General Motors Llc Dba General Motors Llc), T15641780 (Tri Component Product Corp. Dba Tri Component Product Corp).
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.