The Cover,access, cataloged under National Stock Number 5340-01-644-8137, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 5340-01-644-8137 |
| Primary Part Number | 12543374-001 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Inside Width | 4.54 INCHES NOMINAL IN |
| Length | 6.00 INCHES NOMINAL IN |
| Usage Design | COMBAT VEHICLE |
| Inside Length | 5.64 INCHES NOMINAL IN |
| Distance Between Holes Along Length | 4.44 INCHES NOMINAL IN |
| Hole Quantity Along Length | 4 |
| Distance Between Holes Along Width | 3.13 INCHES NOMINAL IN |
| Hole Quantity Along Width | 2 |
| Width | 4.88 INCHES NOMINAL IN |
| Corner Cut Type | ROUND OR SQUARE |
| Material | STEEL |
| Hole Diameter | 0.63 INCHES NOMINAL IN |
| Mounting Hole Type | UNABLE TO DECODE |
| Body Thickness | 1.00 INCHES NOMINAL 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 |
|---|---|
| 12543374-001 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 12543374 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5340-01-644-8137 is a Cover,access, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-644-8137 has 1 manufacturer part number on file: 12543374-001 (U S Army Tank Automotive Command Amsta-Im-Mm).
1 possible match (shared part number, not a government interchangeability claim): 5340-01-644-8152. Verify interchangeability with system specifications before substitution.
Key specifications for 12543374-001: Inside Width: 4.54 INCHES NOMINAL IN; Length: 6.00 INCHES NOMINAL IN; Usage Design: COMBAT VEHICLE; Inside Length: 5.64 INCHES NOMINAL IN. 14 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.