The Thumbscrew, cataloged under National Stock Number 5305-01-210-9426, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 24 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-210-9426 |
| Primary Part Number | 75D111248-2001 |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Head Height | 0.370 INCHES NOMINAL IN |
| Fastener Length | 4.330 INCHES NOMINAL IN |
| Shoulder Length | 0.380 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Length | 3.190 INCHES NOMINAL SECOND SHOULDER IN |
| Surface Treatment Document and Classification | PS13145,TY2,CL2 MFR REF SINGLE TREATMENT RESPONSE GRIP |
| Surface Treatment Document and Classification | PS13145,TY2,CL2 MFR REF SINGLE TREATMENT RESPONSE THREADS |
| Surface Treatment Document and Classification | PS13318 MFR REF SINGLE TREATMENT RESPONSE HEAD |
| Shoulder Diameter | 0.748 INCHES MINIMUM AND 0.749 INCHES MAXIMUM SECOND SHOULDER IN |
| Shoulder Diameter | 1.165 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.623 INCHES NOMINAL IN |
| Shoulder Shape | ROUND ALL SHOULDERS |
| First Diameter From Head | 0.412 INCHES MINIMUM AND 0.422 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | KNURLED NO. 4 |
| Thread Direction | RIGHT-HAND |
| Distance From Largest Bearing Surface of Head to End of First Diameter | 0.127 INCHES MINIMUM AND 0.152 INCHES MAXIMUM IN |
| Externally Relieved Body Diameter Quantity | 1 |
| Surface Treatment | CADMIUM GRIP |
| Surface Treatment | CADMIUM THREADS |
| Surface Treatment | ENAMEL HEAD |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 2.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| 75D111248-2001 | Harlow Aerostructures, Llc (USA) |
| 75D111248-2001 PRIMARY | The Boeing Company Div Defense (USA) |
| 75D111248-2001 | Wainwright Enterprises, L.l.c. (USA) |
NSN 5305-01-210-9426 is a Thumbscrew, manufactured by The Boeing Company Div Defense, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-210-9426 has 3 manufacturer part numbers on file: 75D111248-2001 (Harlow Aerostructures, Llc), 75D111248-2001 (The Boeing Company Div Defense), 75D111248-2001 (Wainwright Enterprises, L.l.c.).
Key specifications for 75D111248-2001: Head Height: 0.370 INCHES NOMINAL IN; Fastener Length: 4.330 INCHES NOMINAL IN; Shoulder Length: 0.380 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Length: 3.190 INCHES NOMINAL SECOND SHOULDER IN. 24 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.