The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-133-8616, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 18 specifications, cited from the U.S. Government catalog. The record lists 10 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5306-01-133-8616 |
| Primary Part Number | S406-4D13 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.164 INCHES NOMINAL IN |
| Fastener Length | 1.118 INCHES MINIMUM AND 1.138 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.296 INCHES MINIMUM AND 0.336 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | SPLINE DRIVE SHEAR HEAD |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.389 INCHES MINIMUM AND 0.448 INCHES MAXIMUM IN |
| Grip Diameter | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.000 INCHES MINIMUM AND 1.030 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 |
|---|---|
| VS3174-4D13 | Howmet Global Fastening Systems Inc (USA) |
| ST3M744-4D13 | Howmet Global Fastening Systems Inc (USA) |
| S406-4D13 PRIMARY | Huck International, Inc (USA) |
| PBF1265-4D13 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VCG0001-4D13 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB154-4D13 | Hi-Shear Corporation (USA) |
| AIC687-4D13 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GS1015-4D13 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| ST3M744-4D13 PRIMARY | The Boeing Company Div Defense (USA) |
| MB154-4D13 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| S406-4D13 | 5/9 Secondary reference U.S. Government activity |
| VS3174-4D13 | 5/9 Secondary reference U.S. Government activity |
| ST3M744-4D13 | 5/9 Secondary reference U.S. Government activity |
| 122895-4D13 | 5/2 Secondary reference U.S. Government activity |
| 10115921 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5306-01-133-8616 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-133-8616 has 10 manufacturer part numbers on file: VS3174-4D13 (Howmet Global Fastening Systems Inc), ST3M744-4D13 (Howmet Global Fastening Systems Inc), S406-4D13 (Huck International, Inc), PBF1265-4D13 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), VCG0001-4D13 (Valley-Todeco, Inc. Dba Arconic Fastening Systems) and 5 more.
Key specifications for S406-4D13: Head Height: 0.164 INCHES NOMINAL IN; Fastener Length: 1.118 INCHES MINIMUM AND 1.138 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.296 INCHES MINIMUM AND 0.336 INCHES MAXIMUM IN. 18 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.