The Bolt,machine, cataloged under National Stock Number 5306-01-216-3993, 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 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-216-3993 |
| Primary Part Number | 29549599 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Allison Transmission Inc Dba Allison Transmission, Inc |
| Status | ACTIVE |
| Head Height | 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Fastener Length | 3.440 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | G-4341-M,CODE 20U32 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 1.000 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | SAE,GR8 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.375 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | DISTORTED HEAD |
| Thread Direction | RIGHT-HAND |
| Width Between Flats | 0.551 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN |
| Locking Feature | DISTORTIONS TOP OF HEAD |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 180000 POUNDS PER SQUARE INCH LBS |
| Minimum Yield Strength | 130000 POUNDS PER SQUARE INCH LBS |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 16 |
| 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 |
| Part Number | Manufacturer |
|---|---|
| 29549599 PRIMARY | Allison Transmission Inc Dba Allison Transmission, Inc (USA) |
| Reference | Meaning |
|---|---|
| 9434184 | 5/9 Secondary reference General Motors Corp |
| 9434184 | 3/9 Design control — primary reference Allison Transmission Inc Dba Allison Transmission, Inc |
NSN 5306-01-216-3993 is a Bolt,machine, manufactured by Allison Transmission Inc Dba Allison Transmission, Inc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-216-3993 has 1 manufacturer part number on file: 29549599 (Allison Transmission Inc Dba Allison Transmission, Inc).
Key specifications for 29549599: Head Height: 0.250 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Fastener Length: 3.440 INCHES MINIMUM AND 3.500 INCHES MAXIMUM IN; Surface Treatment Document and Classification: G-4341-M,CODE 20U32 MFR REF SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 1.000 INCHES MINIMUM AND 1.188 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.