The Bolt,shear, cataloged under National Stock Number 5306-01-268-9489, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Mac Fasteners, Inc. Dba Mac Fasteners Inc. Government technical data includes 20 specifications, cited from the U.S. Government catalog. The record lists 7 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-268-9489 |
| Primary Part Number | NAS6305U21 |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Mac Fasteners, Inc. Dba Mac 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 | 1.735 INCHES MINIMUM AND 1.765 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.413 INCHES MINIMUM AND 0.463 INCHES MAXIMUM IN |
| Material Document and Classification | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 80205-NAS6305 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 1.302 INCHES MINIMUM AND 1.322 INCHES MAXIMUM IN |
| Width Between Flats | 0.492 INCHES MINIMUM AND 0.502 INCHES MAXIMUM IN |
| Grip Diameter | 0.3115 INCHES MINIMUM AND 0.3120 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 | 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 | F |
| Part Number | Manufacturer |
|---|---|
| NAS6305U21 | Mac Fasteners, Inc. Dba Mac Fasteners Inc (USA) |
| NAS6305U21 | Acufast Aircraft Products (USA) |
| NAS6305U21 | The Boeing Company Div Services (USA) |
| NAS6305U21 | Cbs Fasteners, Llc (USA) |
| NAS6305U21 | The Boeing Company Div Defense (USA) |
| NAS6305U21 | 3-V Fastener Co., Inc. (USA) |
| NAS6305U21 | California Screw Products Corp. (USA) |
| Reference | Meaning |
|---|---|
| NAS6305U21 | 3/2 Design control — primary reference U.S. Government activity |
| 5306PL1498779 | 6/9 Informative reference only Jednolity Indeks Materialowy - Uniform Material Index |
NSN 5306-01-268-9489 is a Bolt,shear, manufactured by Mac Fasteners, Inc. Dba Mac Fasteners Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-268-9489 has 7 manufacturer part numbers on file: NAS6305U21 (Mac Fasteners, Inc. Dba Mac Fasteners Inc), NAS6305U21 (Acufast Aircraft Products), NAS6305U21 (The Boeing Company Div Services), NAS6305U21 (Cbs Fasteners, Llc), NAS6305U21 (The Boeing Company Div Defense) and 2 more.
Key specifications for NAS6305U21: 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: 1.735 INCHES MINIMUM AND 1.765 INCHES MAXIMUM IN. 20 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.