The Screw,close Tolerance, cataloged under National Stock Number 5305-01-520-9393, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-520-9393 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 0.588 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | AMS-QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Length | 0.260 INCHES NOMINAL IN |
| Material Document and Classification | AMS5731 FED SPEC 1ST MATERIAL RESPONSE OR AMS5732 FED SPEC 2ND MATERIAL RESPONSE OR AMS5737 FED SPEC 3RD MATERIAL RESPONSE OR AMS5853 FED SPEC 4TH MATERIAL RESPONSE OVERALL |
| Spline Major Diameter | 0.189 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.312 INCHES NOMINAL IN |
| Grip Diameter | 0.163 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 3180 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORX |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | IRON ALLOY 660 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.380 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 |
| Reference | Meaning |
|---|---|
| 120-265E3-5 | 3/9 Design control — primary reference U.S. Government activity |
| NAS5315E3-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-520-9393 is a Screw,close Tolerance, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-520-9393: Fastener Length: 0.588 INCHES NOMINAL IN; Surface Treatment Document and Classification: AMS-QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Length: 0.260 INCHES NOMINAL IN; Material Document and Classification: AMS5731 FED SPEC 1ST MATERIAL RESPONSE OR AMS5732 FED SPEC 2ND MATERIAL RESPONSE OR AMS5737 FED SPEC 3RD MATERIAL RESPONSE OR AMS5853 FED SPEC 4TH MATERIAL RESPONSE OVERALL. 19 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.