The Cover,access, cataloged under National Stock Number 5340-01-449-6179, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 12 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 | 5340-01-449-6179 |
| Primary Part Number | 5M12-18 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Length | 1.076 INCHES MINIMUM AND 1.676 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MIL-P-23377 TYPE1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE |
| Distance Between Holes Along Length | 1.056 INCHES MINIMUM AND 1.068 INCHES MAXIMUM IN |
| Distance Between Holes Along Width | 0.115 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-362 CONDT FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | FLAT |
| Securing Device Type | SPECIAL |
| Peripheral Shape Style | RECTANGLE, MULTI HOLES |
| Material | ALUMINUM ALLOY 2024 |
| Hole Diameter | 0.110 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN |
| Body Thickness | 0.032 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 |
|---|---|
| 5M12-18 PRIMARY | The Boeing Company Div Defense (USA) |
NSN 5340-01-449-6179 is a Cover,access, manufactured by The Boeing Company Div Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-449-6179 has 1 manufacturer part number on file: 5M12-18 (The Boeing Company Div Defense).
Key specifications for 5M12-18: Length: 1.076 INCHES MINIMUM AND 1.676 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MIL-P-23377 TYPE1 MIL SPEC 1ST TREATMENT RESPONSE AND MIL-C-5541 MIL SPEC 2ND TREATMENT RESPONSE; Distance Between Holes Along Length: 1.056 INCHES MINIMUM AND 1.068 INCHES MAXIMUM IN; Distance Between Holes Along Width: 0.115 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN. 12 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.