The Bolt,internal Wrenching, cataloged under National Stock Number 5306-01-666-0001, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Fastener Technology Corp. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 — Bolts (FSG 53) |
| Manufacturers | Fastener Technology Corp (CAGE 58794); M.s. Aerospace Inc. Dba Ms Aerospace Inc (CAGE 0UCY9); Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725); Saturn Fasteners Inc (CAGE 0K6Z0); Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (CAGE 27624) |
| Parameter | Value |
|---|---|
| NSN | 5306-01-666-0001 |
| Primary Part Number | JSFB23-4-6 |
| Item Name | Bolt,internal Wrenching |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fastener Technology Corp |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| JSFB23-4-6 PRIMARY | Fastener Technology Corp (USA) |
| JSFB23-4-6 PRIMARY | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| JSFB23-4-6 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| JSFB23-4-6 PRIMARY | Saturn Fasteners Inc (USA) |
| JSFB23-4-6 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| JSFB23-4-6 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| JSFB23-4-6 PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| Reference | Meaning |
|---|---|
| JSFB23-4-6 | 1/2 Source control — Government-approved source U.S. Government activity |
| JSFB23-4-6 | 3/2 Design control — primary reference U.S. Government activity |
| JSFB23 | D/9 Drawing number reference only U.S. Government activity |
NSN 5306-01-666-0001 is a Bolt,internal Wrenching, manufactured by Fastener Technology Corp, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-666-0001 has 7 manufacturer part numbers on file: JSFB23-4-6 (Fastener Technology Corp), JSFB23-4-6 (M.s. Aerospace Inc. Dba Ms Aerospace Inc), JSFB23-4-6 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), JSFB23-4-6 (Saturn Fasteners Inc), JSFB23-4-6 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 2 more.
1 possible match (shared part number, not a government interchangeability claim): 5306-01-666-0005. Verify interchangeability with system specifications before substitution.
No hazard code in the DLA record (HMIC N). 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.