The Cover,access, cataloged under National Stock Number 5340-01-626-1758, 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 | 5340-01-626-1758 |
| Primary Part Number | 321A113-1 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Lockheed Martin Corporation Div Rotary and Mission Systems |
| Status | ACTIVE |
| Flange Thickness | 0.59 INCHES NOMINAL IN |
| Bolt Circle Hole Quantity | 4 |
| Inside Corner Radius | 0.06 INCHES NOMINAL IN |
| First Recess Inside Height | 0.40 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | RECESS, SAME SHAPE AS THE PERIPHERY |
| Outside Diameter | 4.75 INCHES NOMINAL IN |
| Securing Device Type | THREADED FASTENER |
| Inside Diameter | 3.63 INCHES NOMINAL IN |
| Bolt Circle Diameter | 4.230 INCHES NOMINAL IN |
| Surface Treatment | PRIMER AND PAINT |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Material | ALUMINUM ALLOY 6061 |
| Hole Diameter | 0.196 INCHES NOMINAL IN |
| Body Thickness | 0.19 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 |
|---|---|
| 321A113-1 PRIMARY | Lockheed Martin Corporation Div Rotary and Mission Systems (USA) |
NSN 5340-01-626-1758 is a Cover,access, manufactured by Lockheed Martin Corporation Div Rotary and Mission Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-626-1758 has 1 manufacturer part number on file: 321A113-1 (Lockheed Martin Corporation Div Rotary and Mission Systems).
Key specifications for 321A113-1: Flange Thickness: 0.59 INCHES NOMINAL IN; Bolt Circle Hole Quantity: 4; Inside Corner Radius: 0.06 INCHES NOMINAL IN; First Recess Inside Height: 0.40 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.