The Thumbscrew, cataloged under National Stock Number 5305-01-303-9647, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Designatronics Inc Stock Drive Products Div. Government technical data includes 16 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-303-9647 |
| Primary Part Number | 9B41-A132B |
| Item Name | Thumbscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Designatronics Inc Stock Drive Products Div |
| Status | ACTIVE |
| Head Height | 0.190 INCHES NOMINAL IN |
| Fastener Length | 0.720 INCHES NOMINAL IN |
| Shoulder Length | 0.120 INCHES NOMINAL FIRST SHOULDER IN |
| Shoulder Diameter | 0.380 INCHES NOMINAL FIRST SHOULDER IN |
| Thread Length | 0.410 INCHES NOMINAL IN |
| Shoulder Shape | ROUND FIRST SHOULDER |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | KNURLED NO. 2 |
| Thread Direction | RIGHT-HAND |
| Point Style | FLAT |
| Surface Treatment | NICKEL OVERALL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNF |
| Head Diameter | 0.440 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 |
|---|---|
| 9B41-A132B PRIMARY | Designatronics Inc Stock Drive Products Div (USA) |
| Reference | Meaning |
|---|---|
| 21047785-101 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-303-9647 is a Thumbscrew, manufactured by Designatronics Inc Stock Drive Products Div, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-303-9647 has 1 manufacturer part number on file: 9B41-A132B (Designatronics Inc Stock Drive Products Div).
Key specifications for 9B41-A132B: Head Height: 0.190 INCHES NOMINAL IN; Fastener Length: 0.720 INCHES NOMINAL IN; Shoulder Length: 0.120 INCHES NOMINAL FIRST SHOULDER IN; Shoulder Diameter: 0.380 INCHES NOMINAL FIRST SHOULDER IN. 16 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.