The Bolt,ribbed Neck, cataloged under National Stock Number 5306-00-901-2918, 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 19 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 | 5306-00-901-2918 |
| Primary Part Number | 10920659-2 |
| Item Name | Bolt,ribbed Neck |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Head Height | 0.375 INCHES NOMINAL IN |
| Fastener Length | 3.562 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE2,CLASS3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 1.376 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Rib Length | 0.375 INCHES NOMINAL IN |
| Rib Minor Diameter | 0.740 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Features Provided | CASEHARDENED |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Rib Major Diameter | 0.771 INCHES MINIMUM AND 0.791 INCHES MAXIMUM IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP 4140 OR STEEL COMP 8640 OR STEEL COMP 8740 OVERALL |
| Thread Series Designator | UNF |
| Rib Quantity | 27 |
| Head Diameter | 1.000 INCHES NOMINAL 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 |
|---|---|
| 10920659-2 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 5306-00-901-2918 is a Bolt,ribbed Neck, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-901-2918 has 1 manufacturer part number on file: 10920659-2 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 10920659-2: Head Height: 0.375 INCHES NOMINAL IN; Fastener Length: 3.562 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-416,TYPE2,CLASS3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 1.376 INCHES MINIMUM AND 1.500 INCHES MAXIMUM IN. 19 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.