The Cap,protective,nut and Bolt Hea, cataloged under National Stock Number 5340-01-666-6359, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Fastenal Company. Government technical data includes 3 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-666-6359 |
| Primary Part Number | 0184625 |
| Item Name | Cap,protective,nut and Bolt Hea |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Fastenal Company |
| Status | ACTIVE |
| Overall Diameter | 0.3125 INCHES NOMINAL IN |
| Supplementary Features | WRENCH SIZE-9/16 INCH,THREAD SIZE 18 IN |
| Material | PLASTIC NYLON |
| 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 |
|---|---|
| 0184625 PRIMARY | Fastenal Company (USA) |
NSN 5340-01-666-6359 is a Cap,protective,nut and Bolt Hea, manufactured by Fastenal Company, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-666-6359 has 1 manufacturer part number on file: 0184625 (Fastenal Company).
Key specifications for 0184625: Overall Diameter: 0.3125 INCHES NOMINAL IN; Supplementary Features: WRENCH SIZE-9/16 INCH,THREAD SIZE 18 IN; Part Name Assigned by Controlling Agency: CAP,NUT; End Item Identification: 4940-01-615-9020. 3 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.