The Bumper, cataloged under National Stock Number 5340-01-474-9146, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Al Mar Inc. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-474-9146 |
| Primary Part Number | AE12468781 |
| Item Name | Bumper |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Al Mar Inc |
| 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 |
|---|---|
| 20-00870 | Marengo Fabricated Steel Ltd Dba Lincoln Center Manufacturing (USA) |
| AE12468781 PRIMARY | Al Mar Inc (USA) |
| Reference | Meaning |
|---|---|
| 12468781 | 5/9 Secondary reference Summa Technology, Inc. Dba Aar Precision Systems Div Aar Aerostructures and Interiors |
| AE12468781 | 5/2 Secondary reference U.S. Government activity |
| 12468781 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5340-01-474-9146 is a Bumper, manufactured by Al Mar Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-474-9146 has 2 manufacturer part numbers on file: 20-00870 (Marengo Fabricated Steel Ltd Dba Lincoln Center Manufacturing), AE12468781 (Al Mar Inc).
1 possible match (shared part number, not a government interchangeability claim): 2990-01-573-1704. Verify interchangeability with system specifications before substitution.
Key specifications for AE12468781: End Item Identification: M3 A1 CROP, FLATRACK, SUMMA NSN3990-01-442-2751. 0 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.