The Bolt,machine, cataloged under National Stock Number 5306-00-270-7384, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Mack Trucks Inc Parts Opn. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 8 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-270-7384 |
| Primary Part Number | 12Y6229 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Mack Trucks Inc Parts Opn |
| Status | ACTIVE |
| Head Height | 0.469 INCHES NOMINAL IN |
| Fastener Length | 1.500 INCHES NOMINAL IN |
| Thread Length | 1.062 INCHES NOMINAL IN |
| Material Document and Classification | QQ-S-633,AMEND 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.625 INCHES IN |
| Features Provided | UNFINISHED HEAD |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.438 INCHES NOMINAL IN |
| Width Between Flats | 0.875 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 11 |
| Material | STEEL COMP 1020 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 |
|---|---|
| 12Y6229 PRIMARY | Mack Trucks Inc Parts Opn (USA) |
| 27UV0599 PRIMARY | Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.) (USA) |
| 12Y6229 PRIMARY | Kenworth Truck Co a Div of Paccar Inc (USA) |
| 12Y6229 PRIMARY | Garwood/feller Inc Garwood Winch Div (USA) |
| 42E12Y6229 PRIMARY | Fwd Seagrave Holdings Lp (USA) |
| 12Y6229 PRIMARY | The Oilgear Company Dba Jiffy Lube 213 Div Oilgear (USA) |
| 27UV0599 PRIMARY | Abm Equipment, Llc (USA) |
| 380751101 PRIMARY | Mack Trucks Inc Parts Opn (USA) |
| Reference | Meaning |
|---|---|
| 2186351 | 5/9 Secondary reference General Motors Corp |
| GTB19058 | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| GTB19058 | 5/9 Secondary reference Ford Motor Company |
| GTB5382 | 5/9 Secondary reference Ford Motor Co Ford Parts and Service Div Government Part Sales |
| GTB5382 | 5/9 Secondary reference Ford Motor Company |
| 12Y6229 | 5/9 Secondary reference Paccar Government Group Co Yarrow Bay Office Pk |
| 2186351 | C/1 Advisory reference — outside the item-of-supply concept General Motors Llc Dba General Motors Llc |
| 364725 | 3/9 Design control — primary reference White Motor Corp |
| BB41703 | 5/9 Secondary reference Diamond Reo Truck Co |
NSN 5306-00-270-7384 is a Bolt,machine, manufactured by Mack Trucks Inc Parts Opn, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-270-7384 has 8 manufacturer part numbers on file: 12Y6229 (Mack Trucks Inc Parts Opn), 27UV0599 (Volvo Trucks North America, Inc. Dba (foreign Parent Is Volvo Lastvagnar Ab, Goteborg, Sweden.)), 12Y6229 (Kenworth Truck Co a Div of Paccar Inc), 12Y6229 (Garwood/feller Inc Garwood Winch Div), 42E12Y6229 (Fwd Seagrave Holdings Lp) and 3 more.
Key specifications for 12Y6229: Head Height: 0.469 INCHES NOMINAL IN; Fastener Length: 1.500 INCHES NOMINAL IN; Thread Length: 1.062 INCHES NOMINAL IN; Material Document and Classification: QQ-S-633,AMEND 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 14 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.