The Screw,machine, cataloged under National Stock Number 5305-01-019-2397, 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18 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-019-2397 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Head Height | 0.092 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.280 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Screw Material Document and Classification | QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR FED STD 66 FED SPEC 2ND MATERIAL RESPONSE |
| Thread Length | 0.102 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.250 INCHES IN |
| Head Style | FLAT COUNTERSUNK UNDERCUT |
| Thread Direction | RIGHT-HAND |
| Nondefinitive Spec/std Data | 3 TYPE AND 2C STYLE |
| Screw Material | STEEL COMP 304 OR STEEL COMP 301 |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Countersink Angle | 82.0 DEGREES NOMINAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 28 |
| Thread Series Designator | UNF |
| Head Diameter | 0.452 INCHES MINIMUM AND 0.507 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | QQ-P-35 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 |
|---|---|
| 003-007861-79 | 5/1 Secondary reference Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple |
| 010235-079 | 5/1 Secondary reference U.S. Government activity |
| MS51960-79 | 2/2 Government specification standardization U.S. Government activity |
| FF-S-92 | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-019-2397 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-019-2397: Head Height: 0.092 INCHES MINIMUM AND 0.107 INCHES MAXIMUM IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.280 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Screw Material Document and Classification: QQ-S-763 FED SPEC 1ST MATERIAL RESPONSE OR FED STD 66 FED SPEC 2ND MATERIAL RESPONSE. 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.