The Screw,machine, cataloged under National Stock Number 5305-01-331-9889, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Thales Sa. Government technical data includes 15 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-331-9889 |
| Primary Part Number | 91559231 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Thales Sa |
| Status | ACTIVE |
| Head Height | 0.139 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM OR ZINC |
| Fastener Length | 9.000 INCHES NOMINAL IN |
| Screw Material Document and Classification | SAE ASSN STD ALL MATERIAL RESPONSES |
| Thread Length | 9.000 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.112 INCHES IN |
| Head Style | HEXAGON |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 1010 OR STEEL COMP 1013 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 |
| Internal Drive Style | W/O INTERNAL DRIVE |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 40 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.382 INCHES MINIMUM AND 0.408 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-416,TY 1,CL 3 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325,TY 1,CL 3 FED SPEC 2ND TREATMENT RESPONSE |
| 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 |
|---|---|
| 91559231 | Thales Sa (FRA) |
| Reference | Meaning |
|---|---|
| FF-S-92T1-10S4-40X9-32CUNC2A | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-331-9889 is a Screw,machine, manufactured by Thales Sa, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-331-9889 has 1 manufacturer part number on file: 91559231 (Thales Sa).
Key specifications for 91559231: Head Height: 0.139 INCHES MINIMUM AND 0.153 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM OR ZINC; Fastener Length: 9.000 INCHES NOMINAL IN; Screw Material Document and Classification: SAE ASSN STD ALL MATERIAL RESPONSES. 15 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.