The Screw,machine, cataloged under National Stock Number 5305-01-031-5090, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 18 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-031-5090 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Extended Washer Thickness | 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN |
| Head Height | 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN |
| Screw Surface Treatment | CADMIUM AND CHROMATE |
| Fastener Length | 1.594 INCHES MINIMUM AND 1.656 INCHES MAXIMUM IN |
| Screw Material Document and Classification | AMS6300 ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-6050 MIL SPEC 2ND MATERIAL RESPONSE |
| Extended Washer Diameter | 0.437 INCHES NOMINAL IN |
| Thread Length | 0.344 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | ROUND EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 4037 OR STEEL COMP 8630 |
| Minimum Tensile Strength | 125000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNF |
| Head Diameter | 0.375 INCHES NOMINAL IN |
| Screw Surface Treatment Document and Classification | QQ-P-416,TY 2 CL 3 FED SPEC SINGLE 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 |
| Reference | Meaning |
|---|---|
| S5009-10R26 | 3/9 Design control — primary reference Northrop Grumman Systems Corporation |
| S5009-10R26 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation |
| S5009-10R26 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5305-01-031-5090 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-031-5090: Extended Washer Thickness: 0.025 INCHES MINIMUM AND 0.030 INCHES MAXIMUM IN; Head Height: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM IN; Screw Surface Treatment: CADMIUM AND CHROMATE; Fastener Length: 1.594 INCHES MINIMUM AND 1.656 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.