The Bolt,tee Head, cataloged under National Stock Number 5306-00-142-4956, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-142-4956 |
| Item Name | Bolt,tee Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Status | ACTIVE |
| Head Height | 0.233 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN |
| Fastener Length | 1.125 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.875 INCHES MINIMUM IN |
| Hardness Rating | 95.0 ROCKWELL B MINIMUM OVERALL |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | TEE NO. 1 |
| Thread Direction | RIGHT-HAND |
| Head Length | 0.609 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN |
| Width Between Flats | 0.307 INCHES MINIMUM AND 0.342 INCHES MAXIMUM IN |
| Nondefinitive Spec/std Data | 5 TYPE |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Minimum Tensile Strength | 55000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| FFB584 | 4/1 Identification reference U.S. Government activity |
| MS90729-2 | 2/2 Government specification standardization U.S. Government activity |
NSN 5306-00-142-4956 is a Bolt,tee Head, classified under FSC 5306, Bolts. Status: active.
Key specifications for 5306-00-142-4956: Head Height: 0.233 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN; Fastener Length: 1.125 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE 2 CLASS 3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 0.875 INCHES MINIMUM IN. 17 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.