The Bolt,close Tolerance, cataloged under National Stock Number 5306-00-514-8713, 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 19 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-514-8713 |
| Primary Part Number | BM17028-4-15 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Head Height | 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN |
| Fastener Length | 1.214 INCHES MINIMUM AND 1.261 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MAC PS13145 FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.266 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | 23-105 FSCM 76301 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 08524-B-17028 MANUFACTURERS STANDARD |
| Grip Length | 0.928 INCHES MINIMUM AND 0.948 INCHES MAXIMUM 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 | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.093 INCHES MINIMUM AND 1.150 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 |
|---|---|
| MB13-4D15 | Hi-Shear Corporation (USA) |
| MB13-4D15 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| MB13-4D15 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| AIC244-4D15 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| VS3147-4D15 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| ST3M561-4D15 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| BM17028-4-15 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| VS3147-4D15 | 5/2 Secondary reference U.S. Government activity |
| BM17028-4-15 | 5/9 Secondary reference U.S. Government activity |
| ST3M561-4D15 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| 73992-4D15 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-514-8713 is a Bolt,close Tolerance, manufactured by Huck International, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-514-8713 has 7 manufacturer part numbers on file: MB13-4D15 (Hi-Shear Corporation), MB13-4D15 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), MB13-4D15 (Fairchild Fasteners Europe - Vsd Gmbh), AIC244-4D15 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), VS3147-4D15 (Fairchild Fasteners Europe - Vsd Gmbh) and 2 more.
Key specifications for BM17028-4-15: Head Height: 0.154 INCHES MINIMUM AND 0.174 INCHES MAXIMUM IN; Fastener Length: 1.214 INCHES MINIMUM AND 1.261 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MAC PS13145 FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.266 INCHES MINIMUM AND 0.333 INCHES MAXIMUM IN. 19 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.