The Bolt,shear, cataloged under National Stock Number 5306-01-191-6279, 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 23 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-191-6279 |
| Primary Part Number | MB156-14H32 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN |
| Head Height | 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN |
| Fastener Length | 3.171 INCHES MINIMUM AND 3.201 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Extended Washer Diameter | 1.615 INCHES MINIMUM AND 1.625 INCHES MAXIMUM IN |
| Thread Length | 1.161 INCHES MINIMUM AND 1.211 INCHES MAXIMUM IN |
| Hole Configuration Style | SPLINE |
| Material Document and Classification | AMS5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | SPLINE EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.990 INCHES MINIMUM AND 2.010 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.923 INCHES MINIMUM AND 0.938 INCHES MAXIMUM IN |
| Grip Diameter | 0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| Material | STEEL COMP XM-13 OVERALL |
| Hole Quantity | 4 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLED |
| Hole Diameter | 0.050 INCHES MINIMUM AND 0.060 INCHES MAXIMUM 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 |
|---|---|
| 122897-14H32 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| S343-14H32 | Chicago Florists Supplies Inc (USA) |
| MB156-14H32 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M753-14H32 PRIMARY | Fastener Innovation Technology, Inc. Dba F I T (USA) |
| AIC763-14H32 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| VFK600-14H32 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| PBF1267-14H32 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| HP7753-14H32 | Heartland Precision Fasteners Inc (USA) |
| MB156-14H32 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| 122897-14H32 | 5/2 Secondary reference U.S. Government activity |
| V3190-14H32 | 5/9 Secondary reference U.S. Government activity |
| S342-14H32 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| ST3M753-14H32 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| S343-14H32 | 5/9 Secondary reference U.S. Government activity |
| VS3190-14H32 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-191-6279 is a Bolt,shear, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-191-6279 has 9 manufacturer part numbers on file: 122897-14H32 (Sps Technologies, Llc Dba PB Fasteners), S343-14H32 (Chicago Florists Supplies Inc), MB156-14H32 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M753-14H32 (Fastener Innovation Technology, Inc. Dba F I T), AIC763-14H32 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 4 more.
Key specifications for MB156-14H32: Extended Washer Thickness: 0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN; Head Height: 0.690 INCHES MINIMUM AND 0.710 INCHES MAXIMUM IN; Fastener Length: 3.171 INCHES MINIMUM AND 3.201 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 23 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.