The Screw,self-Drilling, cataloged under National Stock Number 5305-01-559-7437, 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 12 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 | 5305-01-559-7437 |
| Primary Part Number | 90106A108 |
| Item Name | Screw,self-Drilling |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Mcmaster-Carr Supply Co |
| Status | ACTIVE |
| Width Across Flats | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN |
| Head Height | 0.141 INCHES NOMINAL0.141 INCHES NOMINAL IN |
| Fastener Length | 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN |
| Extended Washer Diameter | 0.348 INCHES NOMINAL0.348 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.164 INCHES0.164 INCHES IN |
| Head Style | HEXAGON EXTENDED WASHERHEXAGON EXTENDED WASHER |
| Point Style | SELF-DRILLINGSELF-DRILLING |
| Width Between Flats | 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN |
| Internal Drive Style | HEXAGONHEXAGON |
| Thread Quantity Per Inch | 1818 |
| Material | STEEL CORROSION RESISTING AND STEEL COMP 410 OVERALL |
| Thread Series Designator | BA |
| 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 |
|---|---|
| 90106A108 PRIMARY | Mcmaster-Carr Supply Co (USA) |
NSN 5305-01-559-7437 is a Screw,self-Drilling, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-559-7437 has 1 manufacturer part number on file: 90106A108 (Mcmaster-Carr Supply Co).
Key specifications for 90106A108: Width Across Flats: 0.250 INCHES NOMINAL0.250 INCHES NOMINAL IN; Head Height: 0.141 INCHES NOMINAL0.141 INCHES NOMINAL IN; Fastener Length: 1.000 INCHES NOMINAL1.000 INCHES NOMINAL IN; Extended Washer Diameter: 0.348 INCHES NOMINAL0.348 INCHES NOMINAL IN. 12 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.