The Screw,machine, cataloged under National Stock Number 5305-00-273-1998, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. Government technical data includes 13 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5305-00-273-1998 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Status | ACTIVE |
| Fastener Length | 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN |
| Screw Material Document and Classification | SAE 70B ASSN STD 1ST MATERIAL RESPONSE OR QQ-B-639 FED SPEC 2ND MATERIAL RESPONSE |
| Thread Length | 0.070 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | COPPER ALLOY 464 |
| Internal Drive Style | SLOT |
| Countersink Angle | 82.0 DEGREES NOMINAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 64 |
| Thread Series Designator | UNF |
| Head Diameter | 0.161 INCHES MINIMUM AND 0.167 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 |
|---|---|
| 8Z1009PC59 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| H18NGF10127 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5305-00-273-1998 is a Screw,machine, classified under FSC 5305, Screws. Status: active.
Key specifications for 5305-00-273-1998: Fastener Length: 0.115 INCHES MINIMUM AND 0.125 INCHES MAXIMUM IN; Screw Material Document and Classification: SAE 70B ASSN STD 1ST MATERIAL RESPONSE OR QQ-B-639 FED SPEC 2ND MATERIAL RESPONSE; Thread Length: 0.070 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN; Nominal Thread Diameter: 0.086 INCHES IN. 13 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.