The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-331-8601, 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 Div PB Fasteners. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 — Bolts (FSG 53) |
| Manufacturers | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (CAGE 27624); Reid Products Inc. Dba Reid Products Inc (CAGE 59563); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Valley-Todeco, Inc. Dba Arconic Fastening Systems (CAGE 06710); Howmet Global Fastening Systems Inc (CAGE 06950) |
| Parameter | Value |
|---|---|
| NSN | 5306-01-331-8601 |
| Primary Part Number | PBF1042A6U021 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies Llc Dba PB Fasteners Div 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 |
|---|---|
| PBF1042A6U021 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 11701A06U021 | Reid Products Inc. Dba Reid Products Inc (USA) |
| 68485-6A021 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| VAL23602-6D021 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| VS2979A06U021 | Howmet Global Fastening Systems Inc (USA) |
| AIC2264A06U021 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| BM3210-6A021 | 5/9 Secondary reference U.S. Government activity |
| STSBG001A06U021 | 3/2 Design control — primary reference U.S. Government activity |
| BM3210-6A021 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| VS2979A06U021 | 5/9 Secondary reference U.S. Government activity |
| STSBG001A06U021 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-331-8601 is a Bolt,close Tolerance, manufactured by Sps Technologies Llc Dba PB Fasteners Div PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-331-8601 has 6 manufacturer part numbers on file: PBF1042A6U021 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 11701A06U021 (Reid Products Inc. Dba Reid Products Inc), 68485-6A021 (Sps Technologies, Llc Dba PB Fasteners), VAL23602-6D021 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), VS2979A06U021 (Howmet Global Fastening Systems Inc) and 1 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.