The Screw,tapping, cataloged under National Stock Number 5305-01-500-9581, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 12 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-500-9581 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.062 INCHES IN |
| Head Height | 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Fastener Length | 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM-B-633, TYPE II, CLASS FE/ZN ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Nonmachine Thread Style | DOG TYPE (TYPE B OR C) |
| Material Document and Classification | ASTM-A-109 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | PAN NO. 2 |
| Color | OLIVE DRAB FASTENER |
| Surface Treatment | CHROMATE ZINC OVERALL |
| Internal Drive Style | CROSS RECESS TYPE II |
| Material | STEEL OVERALL |
| Head Diameter | 0.179 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN |
| 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 |
|---|---|
| A3210903-2 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-500-9581 is a Screw,tapping, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-500-9581: Nonmachine Nominal Thread Diameter: 0.062 INCHES IN; Head Height: 0.105 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN; Fastener Length: 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM-B-633, TYPE II, CLASS FE/ZN ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 12 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.