The Bolt,machine, cataloged under National Stock Number 5306-01-133-4453, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 19 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-133-4453 |
| Primary Part Number | 2179615 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Head Height | 0.146 INCHES MINIMUM AND 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM0.166 INCHES MAXIMUM IN |
| Fastener Length | 0.428 INCHES MINIMUM AND 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM0.448 INCHES MAXIMUM IN |
| Thread Length | 0.329 INCHES MINIMUM AND 0.329 INCHES MINIMUM AND 0.349 INCHES MAXIMUM0.349 INCHES MAXIMUM IN |
| Hole Configuration Style | HEXAGON FLATSHEXAGON FLATS |
| Material Document and Classification | AMS 7477 ASSN STD SINGLE MATERIAL RESPONSE OVERALLAMS 7477 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES0.250 INCHES IN |
| Features Provided | FINISHED HEADFINISHED HEAD |
| Head Style | HEXAGONHEXAGON |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Grip Length | 0.099 INCHES MAXIMUM0.099 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM0.439 INCHES MAXIMUM IN |
| Thread Class | 3A3A |
| Thread Quantity Per Inch | 2828 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Hole Quantity | 33 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF)UNIFIED NATIONAL JOINT FINE (UNJF) |
| Hole Type | DRILLEDDRILLED |
| Hole Diameter | 0.040 INCHES MINIMUM AND 0.040 INCHES MINIMUM AND 0.060 INCHES MAXIMUM0.060 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5306-01-133-4453 is a Bolt,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-133-4453 has 2 manufacturer part numbers on file: 2179615 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 2179615 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for 2179615: Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES BEARING SURFACE OF HEAD; Head Height: 0.146 INCHES MINIMUM AND 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM0.166 INCHES MAXIMUM IN; Fastener Length: 0.428 INCHES MINIMUM AND 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM0.448 INCHES MAXIMUM IN; Thread Length: 0.329 INCHES MINIMUM AND 0.329 INCHES MINIMUM AND 0.349 INCHES MAXIMUM0.349 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.