The Bolt,shear, cataloged under National Stock Number 5306-00-010-9990, 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 19 specifications, cited from the U.S. Government catalog. The record lists 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-010-9990 |
| Primary Part Number | 51B464-6-28 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Head Height | 0.183 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN |
| Fastener Length | 2.131 INCHES MINIMUM AND 2.172 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.391 INCHES MINIMUM IN |
| Shank Unthreaded Hole Diameter | 0.106 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-8503 MIL SPEC 3RD MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 4TH MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.740 INCHES MINIMUM AND 1.760 INCHES MAXIMUM IN |
| Width Between Flats | 0.552 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN |
| Grip Diameter | 0.3735 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP E4340 OR STEEL COMP 8740 OR STEEL COMP 6150 OR STEEL COMP 4140 OVERALL |
| Thread Series Designator | UNF |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.011 INCHES MINIMUM AND 2.052 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 | F |
| Part Number | Manufacturer |
|---|---|
| 51B464-6-28 | Hi-Shear Corporation (USA) |
| 51B464-6-28 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 51B464-6-28 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 51B464-6-28 | Howmet Global Fastening Systems Inc (USA) |
| 51B464-6-28 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| 51B464-6-28 | 5/2 Secondary reference U.S. Government activity |
| 51B464-6-28 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 51B464-6-28 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 51B464-6-28 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-010-9990 is a Bolt,shear, manufactured by Hi-Shear Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-010-9990 has 5 manufacturer part numbers on file: 51B464-6-28 (Hi-Shear Corporation), 51B464-6-28 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 51B464-6-28 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 51B464-6-28 (Howmet Global Fastening Systems Inc), 51B464-6-28 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for 51B464-6-28: Head Height: 0.183 INCHES MINIMUM AND 0.203 INCHES MAXIMUM IN; Fastener Length: 2.131 INCHES MINIMUM AND 2.172 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.391 INCHES MINIMUM IN. 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.