The Cover,access, cataloged under National Stock Number 5340-01-134-6227, 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 14 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 | 5340-01-134-6227 |
| Primary Part Number | 646-8521-001 |
| 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 |
| FSC Application Data | CONTROL DISPLAY UNIT,R/N 622-5530-001,6605-01-098-7557 |
| Inside Width | 4.875 INCHES NOMINAL IN |
| Inside Length | 0.220 INCHES NOMINAL IN |
| Flange Thickness | 0.004 INCHES NOMINAL IN |
| Inside Corner Radius | 0.090 INCHES NOMINAL IN |
| First Recess Inside Height | 0.212 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-A-250/8,T H32 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | SQUARE OR RECTANGULAR RECESS |
| Securing Device Type | THREADED FASTENER |
| Surface Treatment | ENAMEL |
| Material | ALUMINUM ALLOY 5052 |
| Hole Diameter | 0.209 INCHES NOMINAL IN |
| Body Thickness | 0.004 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 |
|---|---|
| 646-8521-001 PRIMARY | Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA) |
NSN 5340-01-134-6227 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 5340-01-134-6227 has 1 manufacturer part number on file: 646-8521-001 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems).
Key specifications for 646-8521-001: FSC Application Data: CONTROL DISPLAY UNIT,R/N 622-5530-001,6605-01-098-7557; Inside Width: 4.875 INCHES NOMINAL IN; Inside Length: 0.220 INCHES NOMINAL IN; Flange Thickness: 0.004 INCHES NOMINAL IN. 14 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.