The Bolt,shear, cataloged under National Stock Number 5306-00-845-9902, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 15 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-00-845-9902 |
| Primary Part Number | VS2521-14F22S |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Head Height | 0.468 INCHES NOMINAL IN |
| Fastener Length | 2.367 INCHES NOMINAL IN |
| Thread Length | 0.992 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.875 INCHES IN |
| Head Style | DOUBLE HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 56878-EWSB22 MANUFACTURERS STANDARD |
| Grip Length | 1.365 INCHES MINIMUM AND 1.385 INCHES MAXIMUM IN |
| Width Between Flats | 1.239 INCHES MINIMUM AND 1.252 INCHES MAXIMUM IN |
| Grip Diameter | 0.8730 INCHES MINIMUM AND 0.8740 INCHES MAXIMUM IN |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 14 |
| 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 |
|---|---|
| VS2521-14F22S PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| C699-14-22 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| AIC220-14-22 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| Reference | Meaning |
|---|---|
| VS2521-14F22S | 5/9 Secondary reference U.S. Government activity |
| C699-14-22 | 5/2 Secondary reference U.S. Government activity |
| C699-14-22 | 7/2 Vendor item drawing reference U.S. Government activity |
| 202-15520-14A22 | 7/2 Vendor item drawing reference U.S. Government activity |
| AIC516B14D22 | C/1 Advisory reference — outside the item-of-supply concept Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| BM55132-14-22 | C/1 Advisory reference — outside the item-of-supply concept Huck International, Inc |
| GB511B14D22 | 7/2 Vendor item drawing reference Northrop Grumman Systems Corporation |
| BM55132-14-22 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-00-845-9902 is a Bolt,shear, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-845-9902 has 3 manufacturer part numbers on file: VS2521-14F22S (Howmet Global Fastening Systems Inc), C699-14-22 (Sps Technologies, Llc Dba PB Fasteners), AIC220-14-22 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company).
Key specifications for VS2521-14F22S: Head Height: 0.468 INCHES NOMINAL IN; Fastener Length: 2.367 INCHES NOMINAL IN; Thread Length: 0.992 INCHES MINIMUM IN; Nominal Thread Diameter: 0.875 INCHES IN. 15 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.