The Bolt,ribbed Shoulder, cataloged under National Stock Number 5306-00-679-8109, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Allison Transmission Inc Dba Allison Transmission, Inc. Government technical data includes 22 specifications, cited from the U.S. Government catalog. The record lists 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-679-8109 |
| Primary Part Number | 23014542 |
| Item Name | Bolt,ribbed Shoulder |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Head Height | 0.188 INCHES NOMINAL IN |
| Fastener Length | 1.270 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN |
| Shoulder Length | 0.320 INCHES NOMINAL FIRST SHOULDER IN |
| Distance From Centerline to Flat | 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN |
| Distance From Largest Diameter of Bearing Surface of Head to Ribs | 0.030 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Shoulder Diameter | 0.303 INCHES MINIMUM AND 0.307 INCHES MAXIMUM FIRST SHOULDER IN |
| Thread Length | 0.830 INCHES MINIMUM AND 0.860 INCHES MAXIMUM IN |
| Shoulder Shape | RIBBED FIRST SHOULDER |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | SAE ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Rib Length | 0.260 INCHES NOMINAL IN |
| Rib Minor Diameter | 0.303 INCHES MINIMUM AND 0.307 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.312 INCHES IN |
| Head Style | DEE |
| Thread Direction | RIGHT-HAND |
| Rib Major Diameter | 0.317 INCHES MINIMUM AND 0.321 INCHES MAXIMUM IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP 1335 OR STEEL COMP 1541 OVERALL |
| Thread Series Designator | UNF |
| Rib Quantity | 33 |
| Head Diameter | 0.624 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 |
|---|---|
| 7710675 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 23014542 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| 6755988 | General Motors Corp (USA) |
| N8231 | Cnh Industrial America Llc Dba Cnh America (USA) |
| Reference | Meaning |
|---|---|
| A12695 | 5/9 Secondary reference Cnh Industrial America Llc Dba Cnh America |
| 6755988 | 5/9 Secondary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 5306-00-679-8109 is a Bolt,ribbed Shoulder, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-679-8109 has 4 manufacturer part numbers on file: 7710675 (U S Army Tank Automotive Command Amsta-Im-Mm), 23014542 (Allison Transmission Inc Dba Allison Transmission, Inc), 6755988 (General Motors Corp), N8231 (Cnh Industrial America Llc Dba Cnh America).
3 possible matches (shared part number, not a government interchangeability claim): 5306-01-181-8009, 4720-01-182-9013, 5962-01-265-8153. Verify interchangeability with system specifications before substitution.
Key specifications for 23014542: Head Height: 0.188 INCHES NOMINAL IN; Fastener Length: 1.270 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN; Shoulder Length: 0.320 INCHES NOMINAL FIRST SHOULDER IN; Distance From Centerline to Flat: 0.156 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN. 22 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.