The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-526-3884, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace. The record lists 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 — Bolts (FSG 53) |
| Manufacturers | Howmet Global Fastening Systems Inc (CAGE 06950); West Coast Aerospace, Inc. (CAGE 60516); B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (CAGE 1EM77); The Boeing Company Div Defense (CAGE 76301); Valley-Todeco, Inc. Dba Arconic Fastening Systems (CAGE 06710) |
| Parameter | Value |
|---|---|
| NSN | 5306-01-526-3884 |
| Primary Part Number | GS1015-6D21 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| VS3174-6D21 | Howmet Global Fastening Systems Inc (USA) |
| WC744-6D21 | West Coast Aerospace, Inc. (USA) |
| GS1015-6D21 PRIMARY | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M744-6D21 PRIMARY | The Boeing Company Div Defense (USA) |
| VCG0001-6D21 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| SLB748-6D21 PRIMARY | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 11823-6D21 PRIMARY | Reid Products Inc. Dba Reid Products Inc (USA) |
| VS3174-6D21 PRIMARY | Huck International, Inc (USA) |
| ST3M744-6D21 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| 122895-6D21 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M744-6D21 | Houston Precision Fasteners I Lp (USA) |
| PBF1265-6D21 PRIMARY | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| AIC687-6D21 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M744-6D21 PRIMARY | Heartland Precision Fasteners Inc (USA) |
| Reference | Meaning |
|---|---|
| 122895-6D21 | 5/9 Secondary reference Sps Technologies Inc |
| VS3174-6D21 | 3/2 Design control — primary reference U.S. Government activity |
| 122895-6D21 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-526-3884 is a Bolt,close Tolerance, manufactured by B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-526-3884 has 14 manufacturer part numbers on file: VS3174-6D21 (Howmet Global Fastening Systems Inc), WC744-6D21 (West Coast Aerospace, Inc.), GS1015-6D21 (B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace), ST3M744-6D21 (The Boeing Company Div Defense), VCG0001-6D21 (Valley-Todeco, Inc. Dba Arconic Fastening Systems) and 9 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.