The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-01-142-9066, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Martin-Baker Aircraft Company Limited. Government technical data includes 5 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 | 5340-01-142-9066 |
| Primary Part Number | MBEU-66251 |
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Martin-Baker Aircraft Company Limited |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 0.750 INCHES NOMINAL IN |
| Features Provided | BEVELED SEAT AND SHOULDER |
| Opening Inside Diameter for Which Designed | 0.495 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN |
| Material | ALUMINUM ALLOY |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | F |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| MBEU-66251 PRIMARY | Martin-Baker Aircraft Company Limited (GBR) |
NSN 5340-01-142-9066 is a Plug,protective,dust and Moistur, manufactured by Martin-Baker Aircraft Company Limited, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-142-9066 has 1 manufacturer part number on file: MBEU-66251 (Martin-Baker Aircraft Company Limited).
Key specifications for MBEU-66251: Design Type: FRICTION; Overall Diameter: 0.750 INCHES NOMINAL IN; Features Provided: BEVELED SEAT AND SHOULDER; Opening Inside Diameter for Which Designed: 0.495 INCHES MINIMUM AND 0.499 INCHES MAXIMUM IN. 5 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.