The Cover,access, cataloged under National Stock Number 5340-01-143-1056, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rotary and Mission Systems. 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-143-1056 |
| Primary Part Number | 6855251-1 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| FSC Application Data | ELECTRONIC COUNTERMEASURES EF-111A A |
| Corner Radius | 0.250 INCHES NOMINAL IN |
| Length | 22.530 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE |
| First Recess Inside Height | 0.500 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-250/1 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | SQUARE OR RECTANGULAR RECESS |
| Securing Device Type | SPECIAL |
| Surface Treatment | ANODIZE |
| Peripheral Shape Style | RECTANGLE, NO HOLES |
| Width | 10.094 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 |
| Inside Angle | 0.060 RADIANS NOMINAL |
| Body Thickness | 0.562 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 |
|---|---|
| 6855251-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
NSN 5340-01-143-1056 is a Cover,access, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-143-1056 has 1 manufacturer part number on file: 6855251-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 6855251-1: FSC Application Data: ELECTRONIC COUNTERMEASURES EF-111A A; Corner Radius: 0.250 INCHES NOMINAL IN; Length: 22.530 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE. 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.