The Bolt,shear, cataloged under National Stock Number 5306-00-779-3757, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba PB Fasteners. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 12 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-779-3757 |
| Primary Part Number | GB511C961 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba PB Fasteners |
| Status | ACTIVE |
| Head Height | 0.328 INCHES NOMINAL IN |
| Fastener Length | 4.454 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-8837,TY 1,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.642 INCHES MINIMUM IN |
| Hardness Rating | 51.0 ROCKWELL C MINIMUM AND 54.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | SPS-M-107 FSCM 56878 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 56878-EWSB26 MANUFACTURERS STANDARD |
| Grip Length | 3.813 INCHES NOMINAL IN |
| Width Between Flats | 0.865 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN |
| Grip Diameter | 0.5607 INCHES MINIMUM AND 0.5616 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 260000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL 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 |
|---|---|
| BM1701Z-961 | Huck International, Inc (USA) |
| GB511C961 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GB511C961 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC516C-961 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GB511C961 PRIMARY | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| MB183JL-961 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| 84437-9-61 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| GB511C961 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GB511C961 PRIMARY | Huck International, Inc (USA) |
| GB511C961 PRIMARY | Hi-Shear Corporation (USA) |
| MB183JL-961 | Hi-Shear Corporation (USA) |
| VAL22033-961 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| Reference | Meaning |
|---|---|
| GB511C961 | 3/2 Design control — primary reference U.S. Government activity |
| EWSB26-9A61 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| GB511C9-61 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| VS3437-961 | 5/2 Secondary reference U.S. Government activity |
| EWSB26-9A61 | 5/9 Secondary reference U.S. Government activity |
| VS3072-9A61 | 5/9 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Is Div Northrop Grumman Aeronautics Systems |
| BM55156-9-61A | 5/9 Secondary reference Huck International, Inc |
| VS2106-9-61 | 5/9 Secondary reference U.S. Government activity |
| BM55156-9-61A | 5/9 Secondary reference U.S. Government activity |
| AIC260-9A61 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
NSN 5306-00-779-3757 is a Bolt,shear, manufactured by Sps Technologies, Llc Dba PB Fasteners, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-779-3757 has 12 manufacturer part numbers on file: BM1701Z-961 (Huck International, Inc), GB511C961 (Sps Technologies, Llc Dba PB Fasteners), GB511C961 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), AIC516C-961 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), GB511C961 (Valley-Todeco, Inc. Dba Arconic Fastening Systems) and 7 more.
Key specifications for GB511C961: Head Height: 0.328 INCHES NOMINAL IN; Fastener Length: 4.454 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-8837,TY 1,CL 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.642 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.