The Bolt,tee Head, cataloged under National Stock Number 5306-01-090-4544, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 16 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-090-4544 |
| Primary Part Number | 12276960-1 |
| Item Name | Bolt,tee Head |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Fastener Length | 21.500 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | TT-P-636 FED SPEC 1ST TREATMENT RESPONSE OR TT-P-664 FED SPEC 1ST TREATMENT RESPONSE AND MIL-E-52798 MIL SPEC 2ND TREATMENT RESPONSE OR MIL-E-52835 MIL SPEC 2ND TREATMENT RESPONSE OVERALL |
| Tee Bolt Cylindrical Head Diameter | 0.500 INCHES NOMINAL IN |
| Thread Length | 7.000 INCHES NOMINAL IN |
| Shank Unthreaded Hole Diameter | 0.125 INCHES NOMINAL FIRST HOLE IN |
| Material Document and Classification | ASTM A576 ASSN STD SINGLE MATERIAL RESPONSE AND ASTM A108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | TEE NO. 5 |
| Thread Direction | RIGHT-HAND |
| Head Length | 4.000 INCHES NOMINAL IN |
| Surface Treatment | PRIMER AND ENAMEL OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 13 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Distance From Head Largest Bearing Surface to Shank Hole Center | 21.280 INCHES NOMINAL 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 |
|---|---|
| 12276960-1 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5306-01-090-4544 is a Bolt,tee Head, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-090-4544 has 1 manufacturer part number on file: 12276960-1 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12276960-1: Fastener Length: 21.500 INCHES NOMINAL IN; Surface Treatment Document and Classification: TT-P-636 FED SPEC 1ST TREATMENT RESPONSE OR TT-P-664 FED SPEC 1ST TREATMENT RESPONSE AND MIL-E-52798 MIL SPEC 2ND TREATMENT RESPONSE OR MIL-E-52835 MIL SPEC 2ND TREATMENT RESPONSE OVERALL; Tee Bolt Cylindrical Head Diameter: 0.500 INCHES NOMINAL IN; Thread Length: 7.000 INCHES NOMINAL IN. 16 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.