The Bolt,shear, cataloged under National Stock Number 5306-01-481-9838, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is J M Precision Inc. Government technical data includes 20 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5306-01-481-9838 |
| Primary Part Number | NAS6212-40D |
| Item Name | Bolt,shear |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | J M Precision Inc |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Fastener Length | 3.151 INCHES MINIMUM AND 3.181 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 3,CLASS2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.641 INCHES MINIMUM AND 0.691 INCHES MAXIMUM IN |
| Shank Unthreaded Hole Diameter | 0.141 INCHES MINIMUM AND 0.151 INCHES MAXIMUM FIRST HOLE IN |
| Material Document and Classification | AMS6349 ASSN STD 1ST MATERIAL RESPONSE OR AMS6484 ASSN STD 2ND MATERIAL RESPONSE OR AMS6415 ASSN STD 2ND MATERIAL RESPONSE OR AMS6322 ASSN STD 3RD MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 3RD MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.750 INCHES IN |
| Head Style | DISHED HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 2.490 INCHES MINIMUM AND 2.510 INCHES MAXIMUM IN |
| Width Between Flats | 1.052 INCHES MINIMUM AND 1.065 INCHES MAXIMUM IN |
| Grip Diameter | 0.7480 INCHES MINIMUM AND 0.7490 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 16 |
| Material | STEEL COMP 4140 OR STEEL COMP 4340 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 2.934 INCHES MINIMUM AND 2.954 INCHES MAXIMUM FIRST HOLE IN |
| 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 |
|---|---|
| NAS6212-40D | J M Precision Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS6212-40D | 3/2 Design control — primary reference U.S. Government activity |
NSN 5306-01-481-9838 is a Bolt,shear, manufactured by J M Precision Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-481-9838 has 1 manufacturer part number on file: NAS6212-40D (J M Precision Inc).
Key specifications for NAS6212-40D: Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.375 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Fastener Length: 3.151 INCHES MINIMUM AND 3.181 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 3,CLASS2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL. 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.