The Bolt,shear, cataloged under National Stock Number 5306-00-931-2801, 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 16 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through both NSN and commercial part number lookups. 10 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-931-2801 |
| Primary Part Number | AIC516B-18 |
| 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 | 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN |
| Fastener Length | 1.460 INCHES MINIMUM AND 1.507 INCHES MAXIMUM IN |
| Thread Length | 0.325 INCHES MINIMUM AND 0.392 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 26512-GB511B5 MANUFACTURERS STANDARD |
| Grip Length | 1.115 INCHES MINIMUM AND 1.135 INCHES MAXIMUM IN |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Grip Diameter | 0.3108 INCHES MINIMUM AND 0.3117 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP H11 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 |
|---|---|
| AIC516B-18 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| EWSB22D5-A18 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| AIC220-5A18 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GB511B5-18 | Valley-Todeco, Inc. Dba Arconic Fastening Systems (USA) |
| GB511B5-18 | Sps Technologies Llc Dba PB Fasteners Div PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| VS2521F5-18 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| BM55132-5-18A | 5/9 Secondary reference U.S. Government activity |
| GB511B5-18 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| EWSB22D5-A18 | 5/9 Secondary reference U.S. Government activity |
| EWSB22-5A18 | 5/9 Secondary reference U.S. Government activity |
| C081-5-18 | 7/2 Vendor item drawing reference U.S. Government activity |
| 202-15520-5-18 | 7/2 Vendor item drawing reference U.S. Government activity |
| VS2521F5-18 | 5/2 Secondary reference U.S. Government activity |
| EWSB22-5A18 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BM55132-5-18A | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
NSN 5306-00-931-2801 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 5306-00-931-2801 has 5 manufacturer part numbers on file: AIC516B-18 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), EWSB22D5-A18 (Sps Technologies, Llc Dba PB Fasteners), AIC220-5A18 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), GB511B5-18 (Valley-Todeco, Inc. Dba Arconic Fastening Systems), GB511B5-18 (Sps Technologies Llc Dba PB Fasteners Div PB Fasteners).
Key specifications for AIC516B-18: Head Height: 0.177 INCHES MINIMUM AND 0.197 INCHES MAXIMUM IN; Fastener Length: 1.460 INCHES MINIMUM AND 1.507 INCHES MAXIMUM IN; Thread Length: 0.325 INCHES MINIMUM AND 0.392 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.312 INCHES 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.