The Screw,machine, cataloged under National Stock Number 5305-01-666-0908, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is The American Society of Mechanical Engineers. Government technical data includes 16 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-666-0908 |
| Primary Part Number | AESF5C164375CH2A31 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | The American Society of Mechanical Engineers |
| Status | ACTIVE |
| Head Height | 0.085 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 0.375 INCHES NOMINAL IN |
| Screw Material Document and Classification | ASTM F593,ALLOY GROUP 1,DEFAULT COND CW,SST ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Length | 0.375 INCHES NOMINAL IN |
| Nominal Thread Diameter | 0.1640 INCHES IN |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | 0504-ASME B18.24-2015 NATIONAL STD/SPEC |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | CROSS RECESS TYPE 1 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Diameter | 0.306 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Screw Surface Treatment Document and Classification | ASTM A380 ASSN STD SINGLE TREATMENT RESPONSE |
| 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 |
|---|---|
| AESF5C164375CH2A31 PRIMARY | The American Society of Mechanical Engineers (USA) |
| 0806MPP188 | Kanebridge Corporation Dba Distributor of Fasteners Div Corporate Headquarters (USA) |
NSN 5305-01-666-0908 is a Screw,machine, manufactured by The American Society of Mechanical Engineers, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-666-0908 has 2 manufacturer part numbers on file: AESF5C164375CH2A31 (The American Society of Mechanical Engineers), 0806MPP188 (Kanebridge Corporation Dba Distributor of Fasteners Div Corporate Headquarters).
Key specifications for AESF5C164375CH2A31: Head Height: 0.085 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN; Screw Surface Treatment: PASSIVATE; Fastener Length: 0.375 INCHES NOMINAL IN; Screw Material Document and Classification: ASTM F593,ALLOY GROUP 1,DEFAULT COND CW,SST ASSN STD SINGLE MATERIAL RESPONSE. 16 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.