The Cover,access, cataloged under National Stock Number 5340-01-274-5760, 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 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5340-01-274-5760 |
| Primary Part Number | A51B35040-11 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Length | 7.560 INCHES MINIMUM AND 7.580 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE A |
| Hole Quantity Along Length | 2 |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-A-250/4,T81 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | FLAT |
| Securing Device Type | SPECIAL |
| Surface Treatment | CHROMATE |
| Peripheral Shape Style | OVAL, MULTI HOLES |
| Width | 3.560 INCHES MINIMUM AND 3.580 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY 2024 |
| Hole Diameter | 0.217 INCHES MINIMUM AND 0.223 INCHES MAXIMUM IN |
| Body Thickness | 0.080 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL D — Destroy Item |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| A51B35040-11 | Aairco Inc (USA) |
| A51B35040-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| A51B35040-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Northrop Grumman Aeronautics Systems |
| A51B35040-11 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation |
NSN 5340-01-274-5760 is a Cover,access, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-274-5760 has 2 manufacturer part numbers on file: A51B35040-11 (Aairco Inc), A51B35040-11 (Northrop Grumman Systems Corporation).
Key specifications for A51B35040-11: Length: 7.560 INCHES MINIMUM AND 7.580 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-C-5541,CL 1A MIL SPEC SINGLE TREATMENT RESPONSE A; Hole Quantity Along Length: 2; Mounting Opening Shape Style: UNTHREADED 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.
NSN 5340-01-274-5760 has DEMIL Code D. Demilitarization may be required before disposal or transfer to non-military entities.
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.