The Bolt,shear, cataloged under National Stock Number 5306-01-309-8545, 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 19 specifications, cited from the U.S. Government catalog. The record lists 12 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-309-8545 |
| Primary Part Number | MB156-3-9 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.017 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN |
| Head Height | 0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN |
| Fastener Length | 0.946 INCHES MINIMUM AND 0.976 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 0.349 INCHES MINIMUM AND 0.359 INCHES MAXIMUM IN |
| Thread Length | 0.374 INCHES MINIMUM AND 0.424 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.253 INCHES MINIMUM AND 0.259 INCHES MAXIMUM IN |
| Grip Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP XM-13 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 |
|---|---|
| ST3M753-3-9 | Houston Precision Fasteners I Lp (USA) |
| MB156-3-9 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M753-3-9 | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| SLB255-3-9 | Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok (USA) |
| 122897-3-9 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GS1032-3-9 | B & B Specialties Inc Dba Gs Aerospace Div Gs Aerospace (USA) |
| VFK600-3-9 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| AIC763-3-9 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| VS3190-3-9 | Howmet Global Fastening Systems Inc (USA) |
| 11829-3-9 | Reid Products Inc. Dba Reid Products Inc (USA) |
| MB156-3-9 PRIMARY | Hi-Shear Corporation (USA) |
| PBF1267-3-9 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| S343-3-9 | 5/9 Secondary reference U.S. Government activity |
| VS3190-3-9 | 5/9 Secondary reference U.S. Government activity |
| S343-3-9 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| 122897-3-9 | 5/2 Secondary reference U.S. Government activity |
| 122897-3-9 | 5/9 Secondary reference Sps Technologies Inc |
| ST3M753-3-9 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| ST3M753-3-9 | 5/9 Secondary reference Pruitt Energy Sources Inc |
NSN 5306-01-309-8545 is a Bolt,shear, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-309-8545 has 12 manufacturer part numbers on file: ST3M753-3-9 (Houston Precision Fasteners I Lp), MB156-3-9 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M753-3-9 (Fastener Innovation Technology, Inc. Dba F I T), SLB255-3-9 (Space-Lok, Inc. Dba Space-Lok Inc Div Space-Lok), 122897-3-9 (Sps Technologies, Llc Dba PB Fasteners) and 7 more.
Key specifications for MB156-3-9: Extended Washer Thickness: 0.017 INCHES MINIMUM AND 0.037 INCHES MAXIMUM IN; Head Height: 0.195 INCHES MINIMUM AND 0.215 INCHES MAXIMUM IN; Fastener Length: 0.946 INCHES MINIMUM AND 0.976 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.