The Bolt,shear, cataloged under National Stock Number 5306-01-013-9591, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 15 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-013-9591 |
| Primary Part Number | ST3M561-7D24 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN |
| Fastener Length | 1.950 INCHES MINIMUM AND 1.997 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | MAC PS13145,FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.356 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN |
| Width Between Flats | 0.678 INCHES MINIMUM AND 0.689 INCHES MAXIMUM IN |
| Grip Diameter | 0.4360 INCHES MINIMUM AND 0.4370 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| BM17028-7-24D | Huck International, Inc (USA) |
| MB13-7D24 | Hi-Shear Corporation (USA) |
| MB13-7D24 | Satair A/s (DNK) |
| MB13-7D24 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC244-7D24 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M561-7D24 PRIMARY | The Boeing Company Div Defense (USA) |
| MB13-7D24 | Fairchild Fasteners Europe - Vsd Gmbh (DEU) |
| Reference | Meaning |
|---|---|
| BM17028-7-24D | 5/9 Secondary reference U.S. Government activity |
| ST3M561-7D24 | 5/9 Secondary reference Huntington Valley Industries, Inc. Dba Huntington Valley Industries |
| 73992-7D24 | 5/2 Secondary reference U.S. Government activity |
| 73992-7D24 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
NSN 5306-01-013-9591 is a Bolt,shear, manufactured by The Boeing Company Div Defense, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-013-9591 has 7 manufacturer part numbers on file: BM17028-7-24D (Huck International, Inc), MB13-7D24 (Hi-Shear Corporation), MB13-7D24 (Satair A/s), MB13-7D24 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), AIC244-7D24 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 2 more.
Key specifications for ST3M561-7D24: Head Height: 0.247 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN; Fastener Length: 1.950 INCHES MINIMUM AND 1.997 INCHES MAXIMUM IN; Surface Treatment Document and Classification: MAC PS13145,FSCM 76301 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.356 INCHES MINIMUM AND 0.376 INCHES MAXIMUM IN. 15 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.