The Cover,access, cataloged under National Stock Number 5340-01-406-4184, 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 9 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-406-4184 |
| Primary Part Number | 12275509-1 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Length | 18.1196 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-46168 MIL SPEC SINGLE TREATMENT RESPONSE |
| Flange Thickness | 0.0598 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | ASTM A569 ASSN STD SINGLE MATERIAL RESPONSE |
| Securing Device Type | SPECIAL |
| Surface Treatment | PAINT POLYURETHANE |
| Width | 12.750 INCHES NOMINAL IN |
| Material | STEEL |
| 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 |
|---|---|
| 12275509-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5340-01-406-4184 is a Cover,access, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-406-4184 has 1 manufacturer part number on file: 12275509-1 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12275509-1: Length: 18.1196 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-46168 MIL SPEC SINGLE TREATMENT RESPONSE; Flange Thickness: 0.0598 INCHES NOMINAL IN; Mounting Opening Shape Style: UNTHREADED HOLE. 9 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.