The Bolt,shear, cataloged under National Stock Number 5306-01-642-5668, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Clarendon Specialty Fasteners, Inc.. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-642-5668 |
| Primary Part Number | NAS6305-48 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Clarendon Specialty Fasteners, Inc. |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES THREADS |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN |
| Fastener Length | 3.423 INCHES MINIMUM AND 3.453 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS-QQ-P-416,TYPE II,CLASS 2 NATIONAL STD SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.438 INCHES NOMINAL IN |
| Material Document and Classification | AMS5731,5732,5737 OR 5853 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.3125 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS6303 THRU 6320 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 2.99 INCHES MINIMUM AND 3.01 INCHES MAXIMUM IN |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Grip Diameter | 0.3110 INCHES MINIMUM AND 0.3120 INCHES MAXIMUM IN |
| Color | GREEN THREADS |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | IRON ALLOY 660 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 |
|---|---|
| NAS6305-48 | Clarendon Specialty Fasteners, Inc. (USA) |
| Reference | Meaning |
|---|---|
| NAS6305-48 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-642-5668 is a Bolt,shear, manufactured by Clarendon Specialty Fasteners, Inc., classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-642-5668 has 1 manufacturer part number on file: NAS6305-48 (Clarendon Specialty Fasteners, Inc.).
Key specifications for NAS6305-48: Surface Finish: 32.0 MICROINCHES THREADS; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN; Fastener Length: 3.423 INCHES MINIMUM AND 3.453 INCHES MAXIMUM IN. 21 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.