The Lock,front Window Vent, cataloged under National Stock Number 2540-00-477-8170, 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 1 specification, 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 2540-00-477-8170 |
| Primary Part Number | 3948283 |
| Item Name | Lock,front Window Vent |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | General Motors Llc Dba General Motors Llc |
| Status | ACTIVE |
| General Characteristics Item Description | ZINC ALLOY; @2.750 IN.LG; 1.250 IN. W; 0.875 IN. HGT; BOOMERANG SHAPED 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 |
|---|---|
| 3948283 PRIMARY | General Motors Llc Dba General Motors Llc (USA) |
| Reference | Meaning |
|---|---|
| 3948283 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
| 3927227 | 5/9 Secondary reference General Motors Corp Chevrolet Motor Div Special Products Dept |
NSN 2540-00-477-8170 is a Lock,front Window Vent, manufactured by General Motors Llc Dba General Motors Llc, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-00-477-8170 has 1 manufacturer part number on file: 3948283 (General Motors Llc Dba General Motors Llc).
1 possible match (shared part number, not a government interchangeability claim): 5330-01-674-6578. Verify interchangeability with system specifications before substitution.
Key specifications for 3948283: General Characteristics Item Description: ZINC ALLOY; @2.750 IN.LG; 1.250 IN. W; 0.875 IN. HGT; BOOMERANG SHAPED 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.