The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-01-255-6743, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Warfare Center Weapons Div. Government technical data includes 6 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 | 5340-01-255-6743 |
| Primary Part Number | 4592473 ITEM 76 |
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Naval Air Warfare Center Weapons Div |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 4.000 INCHES NOMINAL IN |
| Material Document and Classification | QQ-A-225/8, T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Features Provided | SHOULDER |
| Opening Inside Diameter for Which Designed | 3.745 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| 4592473 ITEM 76 PRIMARY | Naval Air Warfare Center Weapons Div (USA) |
NSN 5340-01-255-6743 is a Plug,protective,dust and Moistur, manufactured by Naval Air Warfare Center Weapons Div, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-255-6743 has 1 manufacturer part number on file: 4592473 ITEM 76 (Naval Air Warfare Center Weapons Div).
Key specifications for 4592473 ITEM 76: Design Type: FRICTION; Overall Diameter: 4.000 INCHES NOMINAL IN; Material Document and Classification: QQ-A-225/8, T6 FED SPEC SINGLE MATERIAL RESPONSE; Features Provided: SHOULDER. 6 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.