The Bolt,shear, cataloged under National Stock Number 5306-00-978-5169, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 7 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-978-5169 |
| Primary Part Number | 51B464-12A75 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Head Height | 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Fastener Length | 5.250 INCHES MINIMUM AND 5.291 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.552 INCHES MINIMUM AND 0.613 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 4.678 INCHES MINIMUM AND 4.698 INCHES MAXIMUM IN |
| Width Between Flats | 1.052 INCHES MINIMUM AND 1.065 INCHES MAXIMUM IN |
| Grip Diameter | 0.7480 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 6150 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 |
|---|---|
| 51B464-12A75 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| 51B464-12A75 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 51B464-12A75 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 51B464-12A75 | Howmet Global Fastening Systems Inc (USA) |
| 51B464-12A75 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 51B464-12A75 | Hi-Shear Corporation (USA) |
| 51B464-12A75 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| 51B464-12A75 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| 51B464-12A75 | 5/2 Secondary reference U.S. Government activity |
| 51B464-12A75 | 5/9 Secondary reference Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 51B464-12A75 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| 51B464-12A75 | 5/9 Secondary reference U.S. Government activity |
| 51B464-12A75 | 5/2 Secondary reference U.S. Government activity |
NSN 5306-00-978-5169 is a Bolt,shear, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-978-5169 has 7 manufacturer part numbers on file: 51B464-12A75 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), 51B464-12A75 (Northrop Grumman Systems Corporation), 51B464-12A75 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 51B464-12A75 (Howmet Global Fastening Systems Inc), 51B464-12A75 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 2 more.
Key specifications for 51B464-12A75: Head Height: 0.370 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Fastener Length: 5.250 INCHES MINIMUM AND 5.291 INCHES MAXIMUM IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.552 INCHES MINIMUM AND 0.613 INCHES MAXIMUM 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.