The Screw,tapping, cataloged under National Stock Number 5305-01-643-6043, 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 8 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 | 5305-01-643-6043 |
| Primary Part Number | 90415A450 |
| Item Name | Screw,tapping |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.190 INCHES IN |
| Head Height | 0.110 INCHES NOMINAL IN |
| Fastener Length | 0.750 INCHES NOMINAL IN |
| Nonmachine Thread Style | SELF DRILLING |
| Head Style | PAN |
| Internal Drive Style | CROSS RECESS TYPE II |
| Material | STEEL COMP 302 OVERALL |
| Head Diameter | 0.373 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 |
|---|---|
| 90415A450 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5305-01-643-6043 is a Screw,tapping, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-643-6043 has 1 manufacturer part number on file: 90415A450 (Mcmaster-Carr Supply Co).
Key specifications for 90415A450: Nonmachine Nominal Thread Diameter: 0.190 INCHES IN; Head Height: 0.110 INCHES NOMINAL IN; Fastener Length: 0.750 INCHES NOMINAL IN; Nonmachine Thread Style: SELF DRILLING. 8 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.