The Bolt,machine, cataloged under National Stock Number 5306-00-142-4050, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Curtiss-Wright Controls, Inc. Div Actuation Division. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-00-142-4050 |
| Primary Part Number | 491D46 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Curtiss-Wright Controls, Inc. Div Actuation Division |
| Status | ACTIVE |
| Surface Finish | 32.0 MICROINCHES GRIP |
| Extended Washer Thickness | 0.084 INCHES NOMINAL IN |
| Head Height | 0.240 INCHES NOMINAL IN |
| Fastener Length | 0.940 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.609 INCHES MINIMUM AND 0.619 INCHES MAXIMUM IN |
| Thread Length | 0.800 INCHES MINIMUM AND 0.870 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Features Provided | FINISHED HEAD |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.070 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN |
| Width Between Flats | 0.430 INCHES MINIMUM AND 0.439 INCHES MAXIMUM IN |
| Nonstandard Thread Pitch Diameter | +0.2238 TO 0.2313 INCHES IN |
| Thread Quantity Per Inch | 28 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNS |
| 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 |
|---|---|
| 491D46 PRIMARY | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
| Reference | Meaning |
|---|---|
| 491D46 | 5/9 Secondary reference Curtiss-Wright Flight Systems/shelby Inc |
NSN 5306-00-142-4050 is a Bolt,machine, manufactured by Curtiss-Wright Controls, Inc. Div Actuation Division, classified under FSC 5306, Bolts. Status: active.
NSN 5306-00-142-4050 has 1 manufacturer part number on file: 491D46 (Curtiss-Wright Controls, Inc. Div Actuation Division).
Key specifications for 491D46: Surface Finish: 32.0 MICROINCHES GRIP; Extended Washer Thickness: 0.084 INCHES NOMINAL IN; Head Height: 0.240 INCHES NOMINAL IN; Fastener Length: 0.940 INCHES NOMINAL IN. 17 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.