The Bolt,shear, cataloged under National Stock Number 5306-01-048-6074, 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 18 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-048-6074 |
| Primary Part Number | 51B464-3A45 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Head Height | 0.105 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Fastener Length | 3.078 INCHES MINIMUM AND 3.119 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416 TY 2 CL 2 FED SPEC 1ST TREATMENT RESPONSE OR NAS 672 ASSN STD 2ND TREATMENT RESPONSE OVERALL |
| Thread Length | 0.256 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| Hardness Rating | 39.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | MIL-S-5000 MIL SPEC 1ST MATERIAL RESPONSE OR MIL-S-5626 MIL SPEC 2ND MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.802 INCHES MINIMUM AND 2.822 INCHES MAXIMUM IN |
| Width Between Flats | 0.365 INCHES MINIMUM AND 0.377 INCHES MAXIMUM IN |
| Grip Diameter | 0.1885 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OR CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 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 |
|---|---|
| 51B464-3A45 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| 51B464-3A45 | Howmet Global Fastening Systems Inc (USA) |
| 51B464-3A45 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| 51B464-3A45 | J M Precision Inc (USA) |
| 51B464-3A45 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 51B464-3A45 | Huck International, Inc (USA) |
| 51B464-3A45 | Hi-Shear Corporation (USA) |
| 51B464-3A45 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| 51B464-3A45 | 5/9 Secondary reference U.S. Government activity |
| 51B464-3A45 | 5/9 Secondary reference Northrop Grumman Technical Services, Inc. Dba Defense Systems Sector |
| 51B464-3A45 | 5/9 Secondary reference U.S. Government activity |
| 51B464-3A45 | 5/2 Secondary reference U.S. Government activity |
| 51B464-3A45 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
NSN 5306-01-048-6074 is a Bolt,shear, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-048-6074 has 8 manufacturer part numbers on file: 51B464-3A45 (Northrop Grumman Systems Corporation), 51B464-3A45 (Howmet Global Fastening Systems Inc), 51B464-3A45 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners), 51B464-3A45 (J M Precision Inc), 51B464-3A45 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc) and 3 more.
Key specifications for 51B464-3A45: Head Height: 0.105 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN; Fastener Length: 3.078 INCHES MINIMUM AND 3.119 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416 TY 2 CL 2 FED SPEC 1ST TREATMENT RESPONSE OR NAS 672 ASSN STD 2ND TREATMENT RESPONSE OVERALL; Thread Length: 0.256 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN. 18 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.