The Screw,machine, cataloged under National Stock Number 5305-01-152-0581, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 11 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 | 5305-01-152-0581 |
| Primary Part Number | 20631/300.16 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Naval Inventory Control Point Mechanicsburg |
| Status | ACTIVE |
| Head Height | 0.075 INCHES NOMINAL IN |
| Fastener Length | 0.200 INCHES NOMINAL IN |
| Screw Material Document and Classification | BS 970 416 S41 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.160 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.142 INCHES IN |
| Head Style | FLAT CHAMFER |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | SLOT |
| Thread Series Designator | BA |
| Head Diameter | 0.281 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 |
|---|---|
| 20631/300.16 PRIMARY | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5305-01-152-0581 is a Screw,machine, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-152-0581 has 1 manufacturer part number on file: 20631/300.16 (Naval Inventory Control Point Mechanicsburg).
Key specifications for 20631/300.16: Head Height: 0.075 INCHES NOMINAL IN; Fastener Length: 0.200 INCHES NOMINAL IN; Screw Material Document and Classification: BS 970 416 S41 ASSN STD SINGLE MATERIAL RESPONSE; Thread Length: 0.160 INCHES NOMINAL IN. 11 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.