The Bolt,machine, cataloged under National Stock Number 5306-01-134-1963, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5306-01-134-1963 |
| Primary Part Number | 2180190 |
| 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 GRIP32.0 MICROINCHES GRIP |
| Surface Finish | 32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES BEARING SURFACE OF HEAD |
| Extended Washer Thickness | 0.060 INCHES MINIMUM AND 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM0.070 INCHES MAXIMUM IN |
| Head Height | 0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM0.340 INCHES MAXIMUM IN |
| Fastener Length | 0.740 INCHES MINIMUM AND 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM0.760 INCHES MAXIMUM IN |
| Extended Washer Diameter | 0.428 INCHES MINIMUM AND 0.428 INCHES MINIMUM AND 0.448 INCHES MAXIMUM0.448 INCHES MAXIMUM IN |
| Thread Length | 0.534 INCHES MINIMUM AND 0.534 INCHES MINIMUM AND 0.645 INCHES MAXIMUM0.645 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALLAMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES0.250 INCHES IN |
| Features Provided | FINISHED HEADFINISHED HEAD |
| Head Style | DOUBLE HEXAGON W/HOLEDOUBLE HEXAGON W/HOLE |
| Thread Direction | RIGHT-HANDRIGHT-HAND |
| Grip Length | 0.115 INCHES MINIMUM AND 0.115 INCHES MINIMUM AND 0.206 INCHES MAXIMUM0.206 INCHES MAXIMUM IN |
| Width Between Flats | 0.305 INCHES MINIMUM AND 0.305 INCHES MINIMUM AND 0.313 INCHES MAXIMUM0.313 INCHES MAXIMUM IN |
| Thread Class | 3A3A |
| Thread Quantity Per Inch | 2828 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF)UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| 2180190 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| Reference | Meaning |
|---|---|
| 2180190 | 5/2 Secondary reference U.S. Government activity |
| 2180190 | 5/9 Secondary reference Mercury Aerospace Fasteners Inc |
NSN 5306-01-134-1963 is a Bolt,machine, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-134-1963 has 1 manufacturer part number on file: 2180190 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney).
Key specifications for 2180190: Surface Finish: 32.0 MICROINCHES GRIP32.0 MICROINCHES GRIP; Surface Finish: 32.0 MICROINCHES BEARING SURFACE OF HEAD32.0 MICROINCHES BEARING SURFACE OF HEAD; Extended Washer Thickness: 0.060 INCHES MINIMUM AND 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM0.070 INCHES MAXIMUM IN; Head Height: 0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.340 INCHES MAXIMUM0.340 INCHES MAXIMUM IN. 18 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.