The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-666-0004, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. The record lists 5 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 — Bolts (FSG 53) |
| Manufacturers | Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (CAGE 16258); Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (CAGE 06725); Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (CAGE 57928); M.s. Aerospace Inc. Dba Ms Aerospace Inc (CAGE 0UCY9) |
| Parameter | Value |
|---|---|
| NSN | 5306-01-666-0004 |
| Primary Part Number | JSFB24-6-39 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| 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 |
|---|---|
| JSFB24-6-39 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| JSFB24-6-39 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| JSFB24-6-39 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| JSFB24-6-39 PRIMARY | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| JSFB24-6-39 PRIMARY | M.s. Aerospace Inc. Dba Ms Aerospace Inc (USA) |
| Reference | Meaning |
|---|---|
| JSFB24 | D/9 Drawing number reference only U.S. Government activity |
| JSFB24-6-39 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 5306-01-666-0004 is a Bolt,close Tolerance, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-666-0004 has 5 manufacturer part numbers on file: JSFB24-6-39 (Sps Technologies, Llc Dba PB Fasteners), JSFB24-6-39 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), JSFB24-6-39 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), JSFB24-6-39 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries), JSFB24-6-39 (M.s. Aerospace Inc. Dba Ms Aerospace Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5306-01-666-0009, 5306-01-666-0026. 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.