The Setscrew, cataloged under National Stock Number 5305-01-666-2159, is classified within Federal Supply Class 5305 (Screws) of the Hardware and Abrasives group. The manufacturer of record is International Organization for Standardization (iso). Government technical data includes 5 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 | 5305-01-666-2159 |
| Primary Part Number | ISO4026-M4X4 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Head Inside Diameter | 2.0 MILLIMETERS NOMINAL MM |
| Head Style | HEADLESS (SETSCREW) |
| Material | STEEL OVERALL |
| Hole Quantity | 1 |
| Thread Series Designator | ISO M |
| 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 |
|---|---|
| ISO4026-M4X4 PRIMARY | International Organization for Standardization (iso) (CHE) |
NSN 5305-01-666-2159 is a Setscrew, manufactured by International Organization for Standardization (iso), classified under FSC 5305, Screws. Status: active.
NSN 5305-01-666-2159 has 1 manufacturer part number on file: ISO4026-M4X4 (International Organization for Standardization (iso)).
Key specifications for ISO4026-M4X4: Head Inside Diameter: 2.0 MILLIMETERS NOMINAL MM; Head Style: HEADLESS (SETSCREW); Part Name Assigned by Controlling Agency: SETSCREW; Material: STEEL OVERALL. 5 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.