The Screw,drive, cataloged under National Stock Number 5305-01-595-4648, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Rolls-Royce Corporation. Government technical data includes 12 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-595-4648 |
| Primary Part Number | AS3568-21 |
| Item Name | Screw,drive |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Rolls-Royce Corporation |
| Status | ACTIVE |
| Nonmachine Nominal Thread Diameter | 0.112 INCHES IN |
| Head Height | 0.075 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN |
| Fastener Length | 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | ASTM A 380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Nonmachine Thread Style | DRIVE SCREW (TYPE U) |
| Material Document and Classification | AMS 5504 (UNS41000) ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | BUTTON |
| Pilot Diameter | 0.092 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN |
| Pilot Length | 0.047 INCHES NOMINAL IN |
| Surface Treatment | PASSIVATE OVERALL |
| Material | STEEL CORROSION RESISTING OVERALL |
| Head Diameter | 0.193 INCHES MINIMUM AND 0.211 INCHES MAXIMUM 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 |
|---|---|
| AS3568-21 PRIMARY | Rolls-Royce Corporation (USA) |
| SAE AS3568 | Sae International Dba Sae International (USA) |
| Reference | Meaning |
|---|---|
| SAE AS3568 | 5/9 Secondary reference U.S. Government activity |
NSN 5305-01-595-4648 is a Screw,drive, manufactured by Rolls-Royce Corporation, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-595-4648 has 2 manufacturer part numbers on file: AS3568-21 (Rolls-Royce Corporation), SAE AS3568 (Sae International Dba Sae International).
Key specifications for AS3568-21: Nonmachine Nominal Thread Diameter: 0.112 INCHES IN; Head Height: 0.075 INCHES MINIMUM AND 0.086 INCHES MAXIMUM IN; Fastener Length: 0.235 INCHES MINIMUM AND 0.265 INCHES MAXIMUM IN; Surface Treatment Document and Classification: ASTM A 380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL. 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.