The Cover,access, cataloged under National Stock Number 5340-01-178-0252, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-178-0252 |
| Primary Part Number | C31A3086-1 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Distance From First Hole Centerline to End Along Width | 0.547 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| Length | 5.730 INCHES MINIMUM AND 5.750 INCHES MAXIMUM IN |
| Distance Between Holes Along Length | 5.360 INCHES MINIMUM AND 5.370 INCHES MAXIMUM IN |
| Distance Between Holes Along Width | 2.620 INCHES MINIMUM AND 2.630 INCHES MAXIMUM IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Cross-Sectional Shape Style | FLAT W/OPEN CENTER |
| Securing Device Type | TURNLOCK FASTENER |
| Distance From First Hole Centerline to End Along Length | 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN |
| Peripheral Shape Style | RECTANGLE, FOUR HOLES |
| Width | 3.720 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 6061 |
| Hole Diameter | 0.257 INCHES MINIMUM AND 0.259 INCHES MAXIMUM IN |
| Body Thickness | 0.061 INCHES MINIMUM AND 0.067 INCHES MAXIMUM 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 |
|---|---|
| C31A3086-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| C31A3028-3 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5340-01-178-0252 is a Cover,access, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-178-0252 has 1 manufacturer part number on file: C31A3086-1 (Northrop Grumman Systems Corporation).
Key specifications for C31A3086-1: Distance From First Hole Centerline to End Along Width: 0.547 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN; Length: 5.730 INCHES MINIMUM AND 5.750 INCHES MAXIMUM IN; Distance Between Holes Along Length: 5.360 INCHES MINIMUM AND 5.370 INCHES MAXIMUM IN; Distance Between Holes Along Width: 2.620 INCHES MINIMUM AND 2.630 INCHES MAXIMUM IN. 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.