The Retainer,lower, cataloged under National Stock Number 2540-01-073-4048, is classified within Federal Supply Class 2540 (Vehicular Furniture and Accessories) of the Vehicular Equipment Components group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 2540-01-073-4048 |
| Primary Part Number | 11643621 |
| Item Name | Retainer,lower |
| FSC / FSG | 2540 / 25 — Vehicular Furniture and Accessories |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM PER QQ-A-250/7 AND 11; U-SHAPED W/TWO PLAIN MTG HOLES 0.343 IN. DIA; MATL THK 0.062 IN.; O/A W 6.000 IN.;PAINTED WHITE IN |
| 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 |
|---|---|
| 11643621 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 2540-01-073-4048 is a Retainer,lower, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2540, Vehicular Furniture and Accessories. Status: active.
NSN 2540-01-073-4048 has 1 manufacturer part number on file: 11643621 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 11643621: General Characteristics Item Description: ALUMINUM PER QQ-A-250/7 AND 11; U-SHAPED W/TWO PLAIN MTG HOLES 0.343 IN. DIA; MATL THK 0.062 IN.; O/A W 6.000 IN.;PAINTED WHITE IN; End Item Identification: 2350-00-439-6242. 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.