The Plug,protective,dust and Moistur, cataloged under National Stock Number 5340-01-009-1603, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Williams Aerospace & Manufacturing Inc. Government technical data includes 7 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-009-1603 |
| Primary Part Number | 930578-101 |
| Item Name | Plug,protective,dust and Moistur |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Williams Aerospace & Manufacturing Inc |
| Status | ACTIVE |
| Design Type | THREADED |
| Overall Diameter | 0.610 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN |
| Drive Type | SCREW SLOT |
| Material Document and Classification | AMS 3617 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Class | 2A A |
| Material | PLASTIC POLYAMIDE NYLON |
| Thread Size and Series/type Designator | 0.625-18 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 |
|---|---|
| 930578-101 | Williams Aerospace & Manufacturing Inc (USA) |
| Reference | Meaning |
|---|---|
| 930579-101 | 5/9 Secondary reference Williams Aerospace & Manufacturing Inc |
| 930578-101 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5340-01-009-1603 is a Plug,protective,dust and Moistur, manufactured by Williams Aerospace & Manufacturing Inc, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-009-1603 has 1 manufacturer part number on file: 930578-101 (Williams Aerospace & Manufacturing Inc).
Key specifications for 930578-101: Design Type: THREADED; Overall Diameter: 0.610 INCHES MINIMUM AND 0.624 INCHES MAXIMUM IN; Drive Type: SCREW SLOT; Material Document and Classification: AMS 3617 ASSN STD SINGLE MATERIAL RESPONSE. 7 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.