The Cover,access, cataloged under National Stock Number 5340-01-259-0307, 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 13 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 | 5340-01-259-0307 |
| Primary Part Number | 6122977 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Surface Treatment Document and Classification | MIL-P-85582,TY1 MIL SPEC SINGLE TREATMENT RESPONSE |
| Flange Thickness | 0.700 INCHES NOMINAL IN |
| Bolt Circle Hole Quantity | 8 |
| Mounting Opening Shape Style | THREADED HOLE |
| Material Document and Classification | QQ-A-250/11,T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | FLAT, SQUARE OR RECTANGULAR RIB REINFORCED |
| Outside Diameter | 8.330 INCHES NOMINAL IN |
| Securing Device Type | THREADED FASTENER |
| Bolt Circle Diameter | 7.294 INCHES NOMINAL IN |
| Surface Treatment | PRIMER |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Material | ALUMINUM ALLOY 6061 |
| Body Thickness | 1.287 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 |
|---|---|
| 6122977 PRIMARY | Naval Sea Systems Command (USA) |
NSN 5340-01-259-0307 is a Cover,access, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-259-0307 has 1 manufacturer part number on file: 6122977 (Naval Sea Systems Command).
Key specifications for 6122977: Surface Treatment Document and Classification: MIL-P-85582,TY1 MIL SPEC SINGLE TREATMENT RESPONSE; Flange Thickness: 0.700 INCHES NOMINAL IN; Bolt Circle Hole Quantity: 8; Mounting Opening Shape Style: THREADED HOLE. 13 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.