The Cover,access, cataloged under National Stock Number 5340-01-435-5393, 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 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-435-5393 |
| Primary Part Number | 803-6397426-57 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-C-390, TY 3 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | FLAT W/OPEN CENTER |
| Outside Diameter | 7.7420 INCHES MINIMUM AND 7.7450 INCHES MAXIMUM IN |
| Securing Device Type | SPECIAL |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Material | COPPER ALLOY |
| Hole Diameter | 0.4100 INCHES NOMINAL IN |
| Body Thickness | 1.6900 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 |
|---|---|
| 803-6397426-57 PRIMARY | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 803-6397426-AA ITEM 57 | 5/9 Secondary reference Naval Sea Systems Command |
NSN 5340-01-435-5393 is a Cover,access, manufactured by Naval Sea Systems Command, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-435-5393 has 1 manufacturer part number on file: 803-6397426-57 (Naval Sea Systems Command).
Key specifications for 803-6397426-57: Mounting Opening Shape Style: UNTHREADED HOLE; Material Document and Classification: QQ-C-390, TY 3 FED SPEC SINGLE MATERIAL RESPONSE; Cross-Sectional Shape Style: FLAT W/OPEN CENTER; Outside Diameter: 7.7420 INCHES MINIMUM AND 7.7450 INCHES MAXIMUM IN. 9 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.