The Screw,machine, cataloged under National Stock Number 5305-01-688-9039, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is Keysight Technologies Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5305-01-688-9039 |
| Primary Part Number | 515-0658 |
| Item Name | Screw,machine |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | Keysight Technologies Inc |
| Status | ACTIVE |
| Extended Washer Thickness | 0.38 MILLIMETERS MINIMUM AND 0.50 MILLIMETERS MAXIMUM MM |
| Head Height | 1.40 MILLIMETERS MINIMUM AND 1.60 MILLIMETERS MAXIMUM MM |
| Screw Surface Treatment | PASSIVATE |
| Fastener Length | 5.70 MILLIMETERS MINIMUM AND 6.30 MILLIMETERS MAXIMUM MM |
| Extended Washer Diameter | 5.00 MILLIMETERS MINIMUM AND 5.33 MILLIMETERS MAXIMUM MM |
| Thread Length | 5.0 MILLIMETERS NOMINAL MM |
| Hardness Rating | 550.0 VICKERS OR FIRTH DIAMOND PYRAMID NOMINAL |
| Nominal Thread Diameter | 0.40 MILLIMETERS MM |
| Head Style | PAN |
| Thread Direction | RIGHT-HAND |
| Screw Material | STEEL COMP 302 |
| Minimum Tensile Strength | 150000 POUNDS PER SQUARE INCH LBS |
| Internal Drive Style | TORX |
| Thread Class | 4G6G |
| Thread Series Designator | M |
| Head Diameter | 3.70 MILLIMETERS MINIMUM AND 4.00 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 |
|---|---|
| 515-0658 | Keysight Technologies Inc (USA) |
| B18.6.7M M2X0.4 6MM-LG | The American Society of Mechanical Engineers (USA) |
| Reference | Meaning |
|---|---|
| 6141172 | 3/9 Design control — primary reference Bossard North America, Inc. |
NSN 5305-01-688-9039 is a Screw,machine, manufactured by Keysight Technologies Inc, classified under FSC 5305, Screws. Status: active.
NSN 5305-01-688-9039 has 2 manufacturer part numbers on file: 515-0658 (Keysight Technologies Inc), B18.6.7M M2X0.4 6MM-LG (The American Society of Mechanical Engineers).
Key specifications for 515-0658: Extended Washer Thickness: 0.38 MILLIMETERS MINIMUM AND 0.50 MILLIMETERS MAXIMUM MM; Head Height: 1.40 MILLIMETERS MINIMUM AND 1.60 MILLIMETERS MAXIMUM MM; Screw Surface Treatment: PASSIVATE; Fastener Length: 5.70 MILLIMETERS MINIMUM AND 6.30 MILLIMETERS MAXIMUM MM. 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.