The Screw,machine, cataloged under National Stock Number 5305-01-612-7186, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-612-7186 |
| Primary Part Number | 98070A250 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Thread Length | 0.462 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.138 INCHES IN |
| Features Provided | O RING |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | CROSS RECESS TYPE II |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.279 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 98070A250 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5305-01-612-7186 is a Screw,machine, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-612-7186 has 1 manufacturer part number on file: 98070A250 (Mcmaster-Carr Supply Co).
Key specifications for 98070A250: Fastener Length: 0.500 INCHES NOMINAL IN; Thread Length: 0.462 INCHES NOMINAL IN; Nominal Thread Diameter: 0.138 INCHES IN; Features Provided: O RING. 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.