The Screw,close Tolerance, cataloged under National Stock Number 5305-01-438-0364, 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19 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-01-438-0364 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.081 INCHES NOMINAL IN |
| Fastener Length | 2.454 INCHES MINIMUM AND 2.484 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-35 MIL SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Length | 0.594 INCHES NOMINAL IN |
| Material Document and Classification | A-286 CRES AMS5731,5732,5737,5853 ASSN STD ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 0.3750 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.865 INCHES MINIMUM AND 1.885 INCHES MAXIMUM IN |
| Grip Diameter | 0.3740 INCHES MINIMUM AND 0.3745 INCHES MAXIMUM IN |
| Surface Treatment | PASSIVATE OVERALL |
| Minimum Tensile Strength | 7200 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.5149 INCHES MINIMUM AND 0.5662 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 |
|---|---|
| 10335383 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| NAS1581C6T30 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-438-0364 is a Screw,close Tolerance, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-438-0364: Head Height: 0.081 INCHES NOMINAL IN; Fastener Length: 2.454 INCHES MINIMUM AND 2.484 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35 MIL SPEC ALL TREATMENT RESPONSES OVERALL; Thread Length: 0.594 INCHES NOMINAL IN. 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.