The Screw,machine, cataloged under National Stock Number 5305-01-654-1643, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Servtronics, Inc. Dba Servtronics Inc. Government technical data includes 9 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 | 5305-01-654-1643 |
| Primary Part Number | BN660-M3X5 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Servtronics, Inc. Dba Servtronics Inc |
| Status | ACTIVE |
| Head Height | 2.52 MILLIMETERS MAXIMUM MM |
| Fastener Length | 5.0 MILLIMETERS NOMINAL MM |
| Nominal Thread Diameter | 3.0 MILLIMETERS MM |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL CORROSION RESISTING |
| Internal Drive Style | CROSS RECESS TYPE IA |
| Thread Series Designator | M |
| Head Diameter | 6.0 MILLIMETERS MAXIMUM MM |
| 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 |
|---|---|
| BN660-M3X5 PRIMARY | Servtronics, Inc. Dba Servtronics Inc (USA) |
| ISO7045-M3X5 PRIMARY | International Organization for Standardization (iso) (CHE) |
NSN 5305-01-654-1643 is a Screw,machine, manufactured by Servtronics, Inc. Dba Servtronics Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-654-1643 has 2 manufacturer part numbers on file: BN660-M3X5 (Servtronics, Inc. Dba Servtronics Inc), ISO7045-M3X5 (International Organization for Standardization (iso)).
Key specifications for BN660-M3X5: Head Height: 2.52 MILLIMETERS MAXIMUM MM; Fastener Length: 5.0 MILLIMETERS NOMINAL MM; Nominal Thread Diameter: 3.0 MILLIMETERS MM; Head Style: PAN. 9 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.