The Cover,access, cataloged under National Stock Number 5340-01-271-3352, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Telephonics Corp. Government technical data includes 19 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 | 5340-01-271-3352 |
| Primary Part Number | 178C025-1 |
| Item Name | Cover,access |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Telephonics Corp |
| Status | ACTIVE |
| Distance From First Hole Centerline to End Along Width | 0.484 INCHES NOMINAL IN |
| Corner Radius | 0.047 INCHES NOMINAL IN |
| Length | 5.218 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-E-5558,NO. 513 MIL SPEC SINGLE TREATMENT RESPONSE |
| Distance Between Holes Along Length | 4.532 INCHES NOMINAL IN |
| Flange Thickness | 0.063 INCHES NOMINAL IN |
| First Recess Inside Height | 0.187 INCHES NOMINAL IN |
| Distance Between Holes Along Width | 3.640 INCHES NOMINAL IN |
| Mounting Opening Shape Style | UNTHREADED HOLE |
| Material Document and Classification | QQ-A-250/8,H32 FED SPEC SINGLE MATERIAL RESPONSE |
| Cross-Sectional Shape Style | RECESS, SAME SHAPE AS THE PERIPHERY |
| Securing Device Type | SPECIAL |
| Distance From First Hole Centerline to End Along Length | 0.343 INCHES NOMINAL IN |
| Surface Treatment | ENAMEL |
| Peripheral Shape Style | RECTANGLE, FOUR HOLES |
| Width | 4.218 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 5052 |
| Hole Diameter | 0.136 INCHES NOMINAL IN |
| Body Thickness | 0.063 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 |
|---|---|
| 178C025-1 PRIMARY | Telephonics Corp (USA) |
NSN 5340-01-271-3352 is a Cover,access, manufactured by Telephonics Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-271-3352 has 1 manufacturer part number on file: 178C025-1 (Telephonics Corp).
Key specifications for 178C025-1: Distance From First Hole Centerline to End Along Width: 0.484 INCHES NOMINAL IN; Corner Radius: 0.047 INCHES NOMINAL IN; Length: 5.218 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-E-5558,NO. 513 MIL SPEC SINGLE TREATMENT RESPONSE. 19 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.