The Cover,access, cataloged under National Stock Number 5340-01-185-0639, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-185-0639 |
| Primary Part Number | 7-217221109 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company |
| Status | ACTIVE |
| Surface Treatment Document and Classification | EPB040230 ASSN STD SINGLE TREATMENT RESPONSE |
| Bolt Circle Hole Quantity | 4 |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-A-250/4,T3 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | FLAT |
| Outside Diameter | 2.250 INCHES NOMINAL IN |
| Securing Device Type | SPECIAL |
| Bolt Circle Diameter | 1.500 INCHES NOMINAL IN |
| Peripheral Shape Style | ROUND, MULTI HOLES |
| Material | ALUMINUM ALLOY 2024 |
| Hole Diameter | 0.306 INCHES MINIMUM AND 0.313 INCHES MAXIMUM IN |
| Body Thickness | 0.002 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 |
|---|---|
| 7-217221109 | Shim It Manufacturing Corp (USA) |
| 7-217221109 PRIMARY | The Boeing Company (USA) |
| Reference | Meaning |
|---|---|
| 7-217221109 | 5/9 Secondary reference Mcdonnell Douglas Helicopter Co Inc |
NSN 5340-01-185-0639 is a Cover,access, manufactured by The Boeing Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-185-0639 has 2 manufacturer part numbers on file: 7-217221109 (Shim It Manufacturing Corp), 7-217221109 (The Boeing Company).
Key specifications for 7-217221109: Surface Treatment Document and Classification: EPB040230 ASSN STD SINGLE TREATMENT RESPONSE; Bolt Circle Hole Quantity: 4; Mounting Opening Shape Style: UNTHREADED HOLE; Material Document and Classification: QQ-A-250/4,T3 FED SPEC SINGLE MATERIAL RESPONSE. 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.