The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-01-351-3337, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-351-3337 |
| Primary Part Number | 128RDWM120-11 |
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Design Type | THREADED |
| Overall Diameter | 0.5625 INCHES MINIMUM AND 0.5630 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5737, A286 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Class | 3B |
| Material | STEEL |
| Thread Size and Series/type Designator | 10-32 UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 128RDWM120-11 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 128RDWM120-11 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5340-01-351-3337 is a Plug,protective,dust and Moistur, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-351-3337 has 1 manufacturer part number on file: 128RDWM120-11 (Northrop Grumman Systems Corporation).
Key specifications for 128RDWM120-11: Design Type: THREADED; Overall Diameter: 0.5625 INCHES MINIMUM AND 0.5630 INCHES MAXIMUM IN; Material Document and Classification: AMS 5737, A286 ASSN STD SINGLE MATERIAL RESPONSE; Thread Class: 3B. 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.