The Cover,access, cataloged under National Stock Number 5340-01-174-5440, 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 11 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 | 5340-01-174-5440 |
| Primary Part Number | 639AS5185-2 |
| 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 | 0.190 INCHES NOMINAL IN |
| Length | 1.250 INCHES NOMINAL IN |
| Distance Between Hole Centerline and First Hole Along Length | 0.422 INCHES NOMINAL IN |
| Cross-Sectional Shape Style | FLAT |
| Securing Device Type | SPECIAL |
| Distance From First Hole Centerline to End Along Length | 0.410 INCHES NOMINAL IN |
| Distance Between Hole Centerline and First Hole Along Width | 2.187 INCHES NOMINAL IN |
| Peripheral Shape Style | RECTANGLE, TWO HOLES |
| Width | 2.570 INCHES NOMINAL IN |
| Material | PLASTIC |
| Body Thickness | 0.094 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 |
|---|---|
| 639AS5185-2 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
NSN 5340-01-174-5440 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 5340-01-174-5440 has 1 manufacturer part number on file: 639AS5185-2 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for 639AS5185-2: Distance From First Hole Centerline to End Along Width: 0.190 INCHES NOMINAL IN; Length: 1.250 INCHES NOMINAL IN; Distance Between Hole Centerline and First Hole Along Length: 0.422 INCHES NOMINAL IN; Cross-Sectional Shape Style: FLAT. 11 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.