The Bolt,shear, cataloged under National Stock Number 5306-01-043-0008, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-043-0008 |
| Primary Part Number | AIC516B9D21 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Head Height | 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN |
| Fastener Length | 1.886 INCHES MINIMUM AND 1.933 INCHES MAXIMUM IN |
| Thread Length | 0.564 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Shank Unthreaded Hole Diameter | 0.136 INCHES MINIMUM AND 0.146 INCHES MAXIMUM ALL HOLES IN |
| Nominal Thread Diameter | 0.562 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 26512-GB511B MANUFACTURERS STANDARD |
| Grip Length | 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM 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 | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP H11 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 1.767 INCHES MINIMUM AND 1.799 INCHES MAXIMUM ALL HOLES IN |
| 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 |
|---|---|
| GB511B9D21 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| AIC516B9D21 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GB511B9D21 | Hi-Shear Corporation (USA) |
| GB511B9D21 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GB511B9D21 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| GB511B9D21 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| H401-9D21 | 5/9 Secondary reference U.S. Government activity |
| VS3071-9F21D | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| EWSB22D9-21 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| VS3071-9F21D | 5/9 Secondary reference U.S. Government activity |
| GB511B9D21 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| GB511B9D21 | 5/2 Secondary reference U.S. Government activity |
| BM17020-9-21 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| EWSB22D9-21 | 3/2 Design control — primary reference U.S. Government activity |
| BM17020-9-21 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-043-0008 is a Bolt,shear, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-043-0008 has 6 manufacturer part numbers on file: GB511B9D21 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), AIC516B9D21 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), GB511B9D21 (Hi-Shear Corporation), GB511B9D21 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), GB511B9D21 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners) and 1 more.
Key specifications for AIC516B9D21: Head Height: 0.318 INCHES MINIMUM AND 0.338 INCHES MAXIMUM IN; Fastener Length: 1.886 INCHES MINIMUM AND 1.933 INCHES MAXIMUM IN; Thread Length: 0.564 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN; Hardness Rating: 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL. 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.