The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-01-668-9749, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Heyco Molded Products Inc. Government technical data includes 4 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-668-9749 |
| Primary Part Number | 3830 |
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Heyco Molded Products Inc |
| Status | ACTIVE |
| Design Type | FRICTION |
| Tube Outside Diameter for Which Designed | 0.920 INCHES NOMINAL IN |
| Opening Inside Diameter for Which Designed | 0.500 INCHES NOMINAL IN |
| Material | RUBBER |
| 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 |
|---|---|
| 3830 PRIMARY | Heyco Molded Products Inc (USA) |
| Reference | Meaning |
|---|---|
| 4130896 | 7/2 Vendor item drawing reference Oshkosh Defense Llc |
NSN 5340-01-668-9749 is a Plug,protective,dust and Moistur, manufactured by Heyco Molded Products Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-668-9749 has 1 manufacturer part number on file: 3830 (Heyco Molded Products Inc).
Key specifications for 3830: Design Type: FRICTION; Tube Outside Diameter for Which Designed: 0.920 INCHES NOMINAL IN; Opening Inside Diameter for Which Designed: 0.500 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: PLUG, HOLE, .500 BLACK RUBBER. 4 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.