The Cover,access, cataloged under National Stock Number 5340-00-211-6872, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 12 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-00-211-6872 |
| Primary Part Number | 669057 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lockheed Martin Corporation Div Rms - Mitchel Field |
| Status | ACTIVE |
| FSC Application Data | AIRCRAFT GUNNERY FIRE CONTROL EQUIP. |
| Length | 9.813 INCHES NOMINAL IN |
| Flange Thickness | 0.063 INCHES NOMINAL IN |
| First Recess Inside Height | 0.312 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-318,1/4 H FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECESS, SAME SHAPE AS THE PERIPHERY |
| Securing Device Type | SPECIAL |
| Surface Treatment | ANODIZE |
| Peripheral Shape Style | IRREGULAR PENTAGON, NO HOLES |
| Width | 6.000 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 5052 |
| Body Thickness | 0.063 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 |
| Part Number | Manufacturer |
|---|---|
| 669057 PRIMARY | Lockheed Martin Corporation Div Rms - Mitchel Field (USA) |
NSN 5340-00-211-6872 is a Cover,access, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-211-6872 has 1 manufacturer part number on file: 669057 (Lockheed Martin Corporation Div Rms - Mitchel Field).
1 possible match (shared part number, not a government interchangeability claim): 4720-00-595-2388. Verify interchangeability with system specifications before substitution.
Key specifications for 669057: FSC Application Data: AIRCRAFT GUNNERY FIRE CONTROL EQUIP.; Length: 9.813 INCHES NOMINAL IN; Flange Thickness: 0.063 INCHES NOMINAL IN; First Recess Inside Height: 0.312 INCHES NOMINAL IN. 12 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.