The Bolt,shear, cataloged under National Stock Number 5306-00-025-4238, 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 18 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-025-4238 |
| Primary Part Number | AIC516B7-88 |
| 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 | 0.257 INCHES NOMINAL IN |
| Fastener Length | 6.416 INCHES MINIMUM AND 6.463 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.906 INCHES MINIMUM AND 0.973 INCHES MAXIMUM IN |
| Hardness Rating | 46.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM OVERALL |
| Nominal Thread Diameter | 0.438 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 26512-GB511B MANUFACTURERS STANDARD |
| Grip Length | 5.490 INCHES MINIMUM AND 5.510 INCHES MAXIMUM IN |
| Width Between Flats | 0.678 INCHES MINIMUM AND 0.689 INCHES MAXIMUM IN |
| Grip Diameter | 0.4358 INCHES MINIMUM AND 0.4367 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 220000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| 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 |
|---|---|
| AIC516B7-88 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| GB511B7-88 | Northrop Grumman Systems Corporation (USA) |
| EWSB22-7A88 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| VS2521-7F88 | C/1 Advisory reference — outside the item-of-supply concept Howmet Global Fastening Systems Inc |
| EWSB22-7A88 | 5/9 Secondary reference Sps Technologies Inc |
| VS2521-7F88 | 5/9 Secondary reference U.S. Government activity |
| EWSB22D7-A88 | 3/2 Design control — primary reference U.S. Government activity |
| EWSB22D7-A88 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| BM17020-7-88A | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| C081-7-88 | 5/2 Secondary reference U.S. Government activity |
| BM17020-7-88A | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-025-4238 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 5306-00-025-4238 has 3 manufacturer part numbers on file: AIC516B7-88 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), GB511B7-88 (Northrop Grumman Systems Corporation), EWSB22-7A88 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for AIC516B7-88: Head Height: 0.257 INCHES NOMINAL IN; Fastener Length: 6.416 INCHES MINIMUM AND 6.463 INCHES MAXIMUM IN; Surface Treatment Document and Classification: NAS 672 ASSN STD SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.906 INCHES MINIMUM AND 0.973 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.