The Screw,machine, cataloged under National Stock Number 5305-01-006-2048, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 15 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-006-2048 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN |
| Screw Material Document and Classification | QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE |
| Thread Length | 1.365 INCHES MINIMUM AND 1.527 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.500 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nondefinitive Spec/std Data | 1 TYPE AND 2S STYLE |
| Screw Material | NICKEL ALLOY 400 |
| Minimum Tensile Strength | 80000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | SLOT |
| Countersink Angle | 80.0 DEGREES MINIMUM AND 82.0 DEGREES MAXIMUM |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 20 |
| Thread Series Designator | UNF |
| Head Diameter | 0.775 INCHES MINIMUM AND 0.875 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 |
|---|---|
| 4491143PC43 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| SS-128-4491143PC43 | 3/9 Design control — primary reference Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance |
| FF-S-92 | 4/1 Identification reference U.S. Government activity |
NSN 5305-01-006-2048 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-01-006-2048: Fastener Length: 1.688 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN; Screw Material Document and Classification: QQ-N-281,CLASS A FED SPEC SINGLE MATERIAL RESPONSE; Thread Length: 1.365 INCHES MINIMUM AND 1.527 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.500 INCHES IN. 15 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.