The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-00-630-3099, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Shaw Development, Llc. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-630-3099 |
| Primary Part Number | 55641 |
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Shaw Development, Llc |
| Status | ACTIVE |
| Design Type | FRICTION |
| Overall Diameter | 3.310 INCHES NOMINAL IN |
| Features Provided | GASKET AND SHOULDER |
| Opening Inside Diameter for Which Designed | 2.750 INCHES NOMINAL IN |
| Surface Treatment | ZINC |
| Material | STEEL |
| 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 |
|---|---|
| 55641 PRIMARY | Shaw Development, Llc (USA) |
| Reference | Meaning |
|---|---|
| 13218E4163 | 7/2 Vendor item drawing reference U.S. Government activity |
| 55641 | 5/9 Secondary reference Moeller Mfg Co Inc |
NSN 5340-00-630-3099 is a Plug,protective,dust and Moistur, manufactured by Shaw Development, Llc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-630-3099 has 1 manufacturer part number on file: 55641 (Shaw Development, Llc).
1 possible match (shared part number, not a government interchangeability claim): 7025-01-533-9315. Verify interchangeability with system specifications before substitution.
Key specifications for 55641: Design Type: FRICTION; Overall Diameter: 3.310 INCHES NOMINAL IN; Features Provided: GASKET AND SHOULDER; Opening Inside Diameter for Which Designed: 2.750 INCHES NOMINAL IN. 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.