The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-494-5732, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-494-5732 |
| Primary Part Number | VS2979A04D024 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.164 INCHES NOMINAL IN |
| Fastener Length | 1.777 INCHES MINIMUM AND 1.824 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | STSBS001 FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.277 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.076 INCHES NOMINAL FIRST HOLE IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.500 INCHES NOMINAL IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Grip Diameter | 0.2485 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | NICKEL OR CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 156000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.652 INCHES MINIMUM AND 1.684 INCHES MAXIMUM FIRST HOLE IN |
| 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 |
|---|---|
| VS2979A04D024 | Howmet Global Fastening Systems Inc (USA) |
| BM3210-4A024D | Huck International, Inc (USA) |
| STSBG001A04D024 | Reid Products Inc. Dba Reid Products Inc (USA) |
| AIC2264A04D024 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| PBF1042A4D024 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VAL23602-4DS024 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| 68485-4-024 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BM3210-4A024D | 5/9 Secondary reference U.S. Government activity |
| STSBG001A04D024 | 7/2 Vendor item drawing reference U.S. Government activity |
| 68485-4-024 | 3/2 Design control — primary reference U.S. Government activity |
| VS2979A04D024 | 5/9 Secondary reference U.S. Government activity |
| 11701A04D024 | 5/9 Secondary reference Reid Products Inc. Dba Reid Products Inc |
NSN 5306-00-494-5732 is a Bolt,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-494-5732 has 6 manufacturer part numbers on file: VS2979A04D024 (Howmet Global Fastening Systems Inc), BM3210-4A024D (Huck International, Inc), STSBG001A04D024 (Reid Products Inc. Dba Reid Products Inc), AIC2264A04D024 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), PBF1042A4D024 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 1 more.
Key specifications for VS2979A04D024: Surface Finish: 32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.164 INCHES NOMINAL IN; Fastener Length: 1.777 INCHES MINIMUM AND 1.824 INCHES MAXIMUM IN. 20 specifications are documented in the U.S. Government catalog.
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.