The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-134-0728, 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 17 specifications, cited from the U.S. Government catalog. The record lists 14 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-134-0728 |
| Primary Part Number | VS3174-8D26 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.281 INCHES NOMINAL IN |
| Fastener Length | 2.068 INCHES MINIMUM AND 2.088 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.433 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.615 INCHES MINIMUM AND 1.635 INCHES MAXIMUM IN |
| Width Between Flats | 0.774 INCHES MINIMUM AND 0.782 INCHES MAXIMUM IN |
| Grip Diameter | 0.4990 INCHES MINIMUM AND 0.4995 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.943 INCHES MINIMUM AND 1.973 INCHES MAXIMUM ALL HOLES 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 |
|---|---|
| VCG0001-8D26 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| PBF1265-8D26 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 122895-8D26 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M744-8D26 | Heartland Precision Fasteners Inc (USA) |
| VS3174-8D26 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| WC744-8D26 | West Coast Aerospace, Inc. (USA) |
| AIC687-8D26 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GS1015-8D26 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| 11823-8D26 | Reid Products Inc. Dba Reid Products Inc (USA) |
| SLB748-8D26 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| ST3M744-8D26 | The Boeing Company Div Defense (USA) |
| ST3M744-8D26 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| ST3M744-8D26 | Houston Precision Fasteners I Lp (USA) |
| VS3174-8D26 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 10115930 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| S406-8D26 | 5/9 Secondary reference U.S. Government activity |
| VS3174-8D26 | 5/9 Secondary reference U.S. Government activity |
| MB154-8D26 | 5/9 Secondary reference Hi-Shear Corporation |
| ST3M744-8D26 | 5/9 Secondary reference U.S. Government activity |
| ST3M744-8D26 | 5/9 Secondary reference Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries |
| S406-8D26 | 5/9 Secondary reference Huck International, Inc |
| 122895-8D26 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-01-134-0728 is a Bolt,close Tolerance, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-134-0728 has 14 manufacturer part numbers on file: VCG0001-8D26 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), PBF1265-8D26 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 122895-8D26 (Sps Technologies, Llc Dba PB Fasteners), ST3M744-8D26 (Heartland Precision Fasteners Inc), VS3174-8D26 (Howmet Global Fastening Systems Inc) and 9 more.
Key specifications for VS3174-8D26: Head Height: 0.281 INCHES NOMINAL IN; Fastener Length: 2.068 INCHES MINIMUM AND 2.088 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.433 INCHES MINIMUM AND 0.473 INCHES MAXIMUM IN. 17 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.