The Bolt,shear, cataloged under National Stock Number 5306-00-288-2196, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-288-2196 |
| Primary Part Number | MB84-3-4 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Extended Washer Thickness | 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN |
| Head Height | 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN |
| Fastener Length | 0.632 INCHES MINIMUM AND 0.662 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN |
| Thread Length | 0.372 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | DOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Width Between Flats | 0.243 INCHES MINIMUM AND 0.251 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 CORROSION RESISTING 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 |
|---|---|
| ST3M571-3-4 | The Boeing Company Div Defense (USA) |
| MB84-3-4 PRIMARY | Hi-Shear Corporation (USA) |
| VAL23033-3-4 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| AIC752-3-4 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| S11-1059-3-4 | Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries (USA) |
| ST3M571-3-4 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| VS3060-3-4 PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| MB84-3-4 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| NAS1100E02-3 (A) | 3/2 Design control — primary reference U.S. Government activity |
| S371-3-4 | 5/9 Secondary reference U.S. Government activity |
| 74328-3-4 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 10114223 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| VS3060-3-4 | 5/9 Secondary reference U.S. Government activity |
| BM3326-3-4 | 5/9 Secondary reference U.S. Government activity |
| 74328-3-4 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-00-288-2196 is a Bolt,shear, manufactured by Hi-Shear Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-288-2196 has 8 manufacturer part numbers on file: ST3M571-3-4 (The Boeing Company Div Defense), MB84-3-4 (Hi-Shear Corporation), VAL23033-3-4 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), AIC752-3-4 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), S11-1059-3-4 (Sonic Industries, Inc. Dba Sonic Industries Inc Div Sonic Industries) and 3 more.
Key specifications for MB84-3-4: Extended Washer Thickness: 0.054 INCHES MINIMUM AND 0.074 INCHES MAXIMUM IN; Head Height: 0.265 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN; Fastener Length: 0.632 INCHES MINIMUM AND 0.662 INCHES MAXIMUM IN; Extended Washer Diameter: 0.340 INCHES MINIMUM AND 0.350 INCHES MAXIMUM IN. 17 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.