The Cover,access, cataloged under National Stock Number 5340-01-263-2226, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 17 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 | 5340-01-263-2226 |
| Primary Part Number | 178AS159 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Distance From First Hole Centerline to End Along Width | 0.140 INCHES NOMINAL IN |
| Corner Radius | 0.120 INCHES NOMINAL IN |
| Length | 1.350 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-5541 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE |
| Distance Between Holes Along Length | 1.062 INCHES NOMINAL IN |
| Distance Between Holes Along Width | 1.062 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-A-250/11 T6 OR T651 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | FLAT |
| Securing Device Type | SPECIAL |
| Distance From First Hole Centerline to End Along Length | 0.140 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE |
| Peripheral Shape Style | RECTANGLE, FOUR HOLES |
| Width | 1.350 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 |
| Hole Diameter | 0.126 INCHES MINIMUM AND 0.133 INCHES MAXIMUM IN |
| Body Thickness | 0.062 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 |
|---|---|
| 178AS159 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5340-01-263-2226 is a Cover,access, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-263-2226 has 1 manufacturer part number on file: 178AS159 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 178AS159: Distance From First Hole Centerline to End Along Width: 0.140 INCHES NOMINAL IN; Corner Radius: 0.120 INCHES NOMINAL IN; Length: 1.350 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541 CL 3 MIL SPEC SINGLE TREATMENT RESPONSE. 17 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.