The Screw,close Tolerance, cataloged under National Stock Number 5305-01-623-8707, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 17 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-623-8707 |
| Item Name | Screw,close Tolerance |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN |
| Fastener Length | 0.385 INCHES MINIMUM AND 0.415 INCHES MAXIMUM IN |
| Thread Length | 0.313 INCHES MINIMUM AND 0.363 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.190 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Grip Length | 0.052 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN |
| Grip Diameter | 0.188 INCHES MINIMUM AND 0.189 INCHES MAXIMUM IN |
| Locking Feature | PATCH OR PELLET OR STRIP THREADS |
| Surface Treatment | CADMIUM OVERALL |
| Minimum Tensile Strength | 160000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | OFFSET CRUCIFORM (TORQUE SET) |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP E4340 OR STEEL COMP 4140 OR STEEL COMP 8740 OR STEEL COMP 8735 OR STEEL COMP 6150 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Diameter | 0.331 INCHES MINIMUM AND 0.373 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 |
|---|---|
| NAS1173-1LP | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-01-623-8707 is a Screw,close Tolerance, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-623-8707: Head Height: 0.122 INCHES MINIMUM AND 0.132 INCHES MAXIMUM IN; Fastener Length: 0.385 INCHES MINIMUM AND 0.415 INCHES MAXIMUM IN; Thread Length: 0.313 INCHES MINIMUM AND 0.363 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.190 INCHES IN. 17 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.