The Setscrew, cataloged under National Stock Number 5305-01-666-7050, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5305-01-666-7050 |
| Primary Part Number | ISO4029-M4X20-A2-70 |
| Item Name | Setscrew |
| FSC / FSG | 5305 / 53 — Screws |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Point Diameter | 4.0 MILLIMETERS NOMINAL MM |
| Width Across Flats | 2.0 MILLIMETERS NOMINAL MM |
| Fastener Length | 19.58 MILLIMETERS MINIMUM AND 20.42 MILLIMETERS MAXIMUM MM |
| Thread Pitch in Millimeters | 0.7 |
| Thread Length | 19.58 MILLIMETERS MINIMUM AND 20.42 MILLIMETERS MAXIMUM MM |
| Hardness Rating | 80.0 ROCKWELL B NOMINAL OVERALL |
| Point Chamfer Angle | 45.0 DEGREES NOMINAL |
| Nominal Thread Diameter | 4.0 MILLIMETERS MM |
| Head Style | HEADLESS (SETSCREW) |
| Thread Direction | RIGHT-HAND |
| Point Style | CUP |
| Specification/standard Data | I9008-ISO 4029 NATIONAL STD/SPEC |
| Internal Drive Style | HEXAGON |
| Thread Class | 6G G |
| Material | STEEL PROPERTY CLASS 18.8 OVERALL |
| Thread Series Designator | 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 |
|---|---|
| ISO4029-M4X20-A2-70 PRIMARY | International Organization for Standardization (iso) (CHE) |
| 92015A201 | Mcmaster-Carr Supply Co (USA) |
| Reference | Meaning |
|---|---|
| DIN916-M4X20-A2-70 | 5/9 Secondary reference Din Deutsches Institut Fur Normung Ev |
NSN 5305-01-666-7050 is a Setscrew, manufactured by International Organization for Standardization (iso), classified under FSC 5305, Screws. Status: active.
NSN 5305-01-666-7050 has 2 manufacturer part numbers on file: ISO4029-M4X20-A2-70 (International Organization for Standardization (iso)), 92015A201 (Mcmaster-Carr Supply Co).
Key specifications for ISO4029-M4X20-A2-70: Point Diameter: 4.0 MILLIMETERS NOMINAL MM; Width Across Flats: 2.0 MILLIMETERS NOMINAL MM; Fastener Length: 19.58 MILLIMETERS MINIMUM AND 20.42 MILLIMETERS MAXIMUM MM; Thread Pitch in Millimeters: 0.7. 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.