The Regulator,vehicle Window, cataloged under National Stock Number 2540-00-409-8860, 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. Government technical data includes 11 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 2540-00-409-8860 |
| Primary Part Number | 3887982 |
| Item Name | Regulator,vehicle Window |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| Lift Arm Maximum Travel | 10.000 INCHES IN |
| Handle Fastening Method | GROOVED FOR RETAINING RING |
| Drive Type | RACK GEAR |
| Glass Lift Channel | NOT INCLUDED |
| Handle Shaft Shape | ROUND |
| Lift Arm Length | 21.000 INCHES NOMINAL IN |
| Gear Ratio | 33 TO 1 |
| Handle/escutcheon Plate | NOT INCLUDED |
| Mounting Location | LEFT HAND AND RIGHT HAND |
| Lift Arm Type | DOUBLE |
| Mounting Type for Which Designed | STEEL PANEL |
| 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 |
|---|---|
| 3887982 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 3887982 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 2540-00-409-8860 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 2540-00-409-8860 has 1 manufacturer part number on file: 3887982 (General Motors Llc Dba General Motors Llc).
Key specifications for 3887982: Lift Arm Maximum Travel: 10.000 INCHES IN; Handle Fastening Method: GROOVED FOR RETAINING RING; Drive Type: RACK GEAR; Glass Lift Channel: NOT INCLUDED. 11 specifications are 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.