The Cap,protective,dust and Moisture, cataloged under National Stock Number 5340-01-643-3989, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Fiber Instrument Sales, Inc.. Government technical data includes 1 specification, 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 | 5340-01-643-3989 |
| Primary Part Number | F190010M |
| Item Name | Cap,protective,dust and Moisture |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Fiber Instrument Sales, Inc. |
| Status | ACTIVE |
| Overall Diameter | 2.5 MILLIMETERS NOMINAL MM |
| 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 |
|---|---|
| F190010M PRIMARY | Fiber Instrument Sales, Inc. (USA) |
NSN 5340-01-643-3989 is a Cap,protective,dust and Moisture, manufactured by Fiber Instrument Sales, Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-643-3989 has 1 manufacturer part number on file: F190010M (Fiber Instrument Sales, Inc.).
Key specifications for F190010M: Overall Diameter: 2.5 MILLIMETERS NOMINAL MM; Special Features: WITH STRAP; Part Name Assigned by Controlling Agency: 2.5MM DUSTCAP BLACK MM. 1 specification is 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.