The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-646-1536, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Fastener Innovation Technology, Inc. Dba F I T. The record lists 9 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 — Bolts (FSG 53) |
| Manufacturers | Fastener Innovation Technology, Inc. Dba F I T (CAGE 58998); M.s. Aerospace Inc. Dba Ms Aerospace Inc (CAGE 0UCY9); Saturn Fasteners Inc (CAGE 0K6Z0); Fastener Technology Corp (CAGE 58794); B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (CAGE 1EM77) |
| Parameter | Value |
|---|---|
| NSN | 5306-01-646-1536 |
| Primary Part Number | JSFB17-5N21P |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Fastener Innovation Technology, Inc. Dba F I T |
| 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 |
|---|---|
| JSFB17-5N21P PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| JSFB17-5N21P PRIMARY | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| JSFB17-5N21P PRIMARY | Saturn Fasteners Inc (USA) |
| JSFB17-5N21P | Fastener Technology Corp (USA) |
| JSFB17-5N21P PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| JSFB17-5N21P PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| JSFB17-5N21P PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| JSFB17-5N21P PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| JSFB17-5N21P PRIMARY | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| Reference | Meaning |
|---|---|
| JSFB17-5N21P | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5306-01-646-1536 is a Bolt,close Tolerance, manufactured by Fastener Innovation Technology, Inc. Dba F I T, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-646-1536 has 9 manufacturer part numbers on file: JSFB17-5N21P (Fastener Innovation Technology, Inc. Dba F I T), JSFB17-5N21P (M.s. Aerospace Inc. Dba Ms Aerospace Inc), JSFB17-5N21P (Saturn Fasteners Inc), JSFB17-5N21P (Fastener Technology Corp), JSFB17-5N21P (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace) and 4 more.
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.