The Cover,access, cataloged under National Stock Number 5340-01-131-9957, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems. Government technical data includes 18 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 | 5340-01-131-9957 |
| Primary Part Number | 634-8273-001 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
| Status | ACTIVE |
| Distance From First Hole Centerline to End Along Width | 0.100 INCHES NOMINAL IN |
| Length | 3.320 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | 580-0194-037,FSCM 13499 MFR REF SINGLE TREATMENT RESPONSE |
| Distance Between Holes Along Length | 1.000 INCHES NOMINAL IN |
| Distance Between Holes Along Width | 3.120 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-A-250/8 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | FLAT |
| Features Provided | OBSERVATION FACILITY |
| Securing Device Type | SPECIAL |
| Hole Quantity Along Width | 2 |
| Distance From First Hole Centerline to End Along Length | 0.140 INCHES NOMINAL IN |
| Surface Treatment | PAINT EPOXY |
| Peripheral Shape Style | RECTANGLE, MULTI HOLES |
| Width | 2.150 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 5052 |
| Hole Diameter | 0.109 INCHES NOMINAL IN |
| Body Thickness | 0.037 INCHES MINIMUM AND 0.043 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 |
|---|---|
| 634-8273-001 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 5340-01-131-9957 is a Cover,access, manufactured by Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-131-9957 has 1 manufacturer part number on file: 634-8273-001 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 634-8273-001: Distance From First Hole Centerline to End Along Width: 0.100 INCHES NOMINAL IN; Length: 3.320 INCHES NOMINAL IN; Surface Treatment Document and Classification: 580-0194-037,FSCM 13499 MFR REF SINGLE TREATMENT RESPONSE; Distance Between Holes Along Length: 1.000 INCHES NOMINAL IN. 18 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.