The Bolt,close Tolerance, cataloged under National Stock Number 5306-01-030-1765, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 9 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-030-1765 |
| Primary Part Number | MB145-5D13 |
| Item Name | Bolt,close Tolerance |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Head Height | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN |
| Fastener Length | 1.171 INCHES MINIMUM AND 1.218 INCHES MAXIMUM IN |
| Thread Length | 0.349 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.802 INCHES MINIMUM AND 0.822 INCHES MAXIMUM IN |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.043 INCHES MINIMUM AND 1.110 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 |
|---|---|
| MB145-5D13 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M729-5D13 PRIMARY | Huck International, Inc (USA) |
| ST3M729-5D13 | Howmet Global Fastening Systems Inc Div Ram Products (USA) |
| ST3M729-5D13 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| ST3M729-5D13 PRIMARY | The Boeing Company Div Defense (USA) |
| ST3M729-5D13 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M729-5D13 | Reid Products Inc. Dba Reid Products Inc (USA) |
| MB145-5D13 PRIMARY | Hi-Shear Corporation (USA) |
| ST3M729-5D13 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| ST3M729-5D13 | 5/9 Secondary reference Hi-Shear Corporation |
| ST3M729-5D13 | 3/2 Design control — primary reference U.S. Government activity |
| ST3M729-5D13 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-030-1765 is a Bolt,close Tolerance, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-030-1765 has 9 manufacturer part numbers on file: MB145-5D13 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M729-5D13 (Huck International, Inc), ST3M729-5D13 (Howmet Global Fastening Systems Inc Div Ram Products), ST3M729-5D13 (Sps Technologies, Llc Dba PB Fasteners), ST3M729-5D13 (The Boeing Company Div Defense) and 4 more.
Key specifications for MB145-5D13: Head Height: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN; Fastener Length: 1.171 INCHES MINIMUM AND 1.218 INCHES MAXIMUM IN; Thread Length: 0.349 INCHES MINIMUM AND 0.416 INCHES MAXIMUM IN; Shank Unthreaded Hole Diameter: 0.076 INCHES MINIMUM AND 0.081 INCHES MAXIMUM FIRST HOLE IN. 16 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.