The Cover,access, cataloged under National Stock Number 5340-01-391-1583, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Honeywell Aerospace Yeovil Div Aerospace -Yeovil. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-391-1583 |
| Primary Part Number | 2688W270 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Honeywell Aerospace Yeovil Div Aerospace -Yeovil |
| Status | ACTIVE |
| Length | 3.0000 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-5541, CL 3 MIL SPEC SINGLE TREATMENT RESPONSE |
| Distance Between Holes Along Length | 2.5000 INCHES NOMINAL IN |
| Flange Thickness | 0.5160 INCHES NOMINAL IN |
| Inside Corner Radius | 0.0630 INCHES NOMINAL IN |
| First Recess Inside Height | 0.7800 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-225/4 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | CIRCULAR RECESS |
| Securing Device Type | SPECIAL |
| Inside Diameter | 1.6500 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE |
| Peripheral Shape Style | OVAL, TWO HOLES |
| Width | 2.0000 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 |
| Body Thickness | 0.1200 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 |
|---|---|
| 2688W270 | Honeywell Aerospace Yeovil Div Aerospace -Yeovil (GBR) |
| Reference | Meaning |
|---|---|
| 2688W270 | 3/9 Design control — primary reference Aar Allen Services, Inc. |
NSN 5340-01-391-1583 is a Cover,access, manufactured by Honeywell Aerospace Yeovil Div Aerospace -Yeovil, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-391-1583 has 1 manufacturer part number on file: 2688W270 (Honeywell Aerospace Yeovil Div Aerospace -Yeovil).
Key specifications for 2688W270: Length: 3.0000 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541, CL 3 MIL SPEC SINGLE TREATMENT RESPONSE; Distance Between Holes Along Length: 2.5000 INCHES NOMINAL IN; Flange Thickness: 0.5160 INCHES NOMINAL IN. 15 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.