The Cover,access, cataloged under National Stock Number 5340-01-371-0945, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 16 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-371-0945 |
| Primary Part Number | 801-6641010 ITEM A-4 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE |
| Flange Thickness | 0.925 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN |
| Bolt Circle Hole Quantity | 6 |
| Inside Corner Radius | 0.030 INCHES NOMINAL IN |
| First Recess Inside Height | 0.567 INCHES MINIMUM AND 0.570 INCHES MAXIMUM IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-A-250/11-T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | CIRCULAR RECESS |
| Outside Diameter | 7.500 INCHES NOMINAL IN |
| Securing Device Type | SPECIAL |
| Inside Diameter | 5.875 INCHES MINIMUM AND 5.877 INCHES MAXIMUM IN |
| Bolt Circle Diameter | 5.380 INCHES NOMINAL IN |
| Surface Treatment | ANODIZE |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Material | ALUMINUM ALLOY 6061 |
| Hole Diameter | 0.105 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 |
|---|---|
| 801-6641010 ITEM A-4 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2643-930-50 FN A-4 | 5/9 Secondary reference U.S. Government activity |
| 219015691-0005 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5340-01-371-0945 is a Cover,access, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-371-0945 has 1 manufacturer part number on file: 801-6641010 ITEM A-4 (Naval Sea Systems Command).
Key specifications for 801-6641010 ITEM A-4: Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE; Flange Thickness: 0.925 INCHES MINIMUM AND 0.940 INCHES MAXIMUM IN; Bolt Circle Hole Quantity: 6; Inside Corner Radius: 0.030 INCHES NOMINAL IN. 16 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.