The Bolt,machine, cataloged under National Stock Number 5306-01-727-5944, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is International Organization for Standardization (iso). Government technical data includes 23 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-727-5944 |
| Primary Part Number | EN1665-M12X1.75X110-10.9/ZN/D |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | International Organization for Standardization (iso) |
| Status | ACTIVE |
| Extended Washer Thickness | 6.2 MILLIMETERS NOMINAL MM |
| Head Height | 11.8 MILLIMETERS MAXIMUM MM |
| External Thread Tolerance Class | 6G G |
| Fastener Length | 109.3 MILLIMETERS MINIMUM AND 110.7 MILLIMETERS MAXIMUM MM |
| Surface Treatment Document and Classification | ISO 4042 INTERNATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL |
| Extended Washer Diameter | 26.6 MILLIMETERS MAXIMUM MM |
| Thread Pitch in Millimeters | 1.75 |
| Thread Length | 30.0 MILLIMETERS NOMINAL MM |
| Hardness Rating | 32.0 ROCKWELL C MINIMUM AND 39.0 ROCKWELL C MAXIMUM OVERALL |
| Material Document and Classification | ISO 898-1 INTERNATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 12.0 MILLIMETERS MM |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Specification/standard Data | I9008-EN1665-2007 (1998) INTERNATIONAL STD/SPEC AND I9008-4042-2022 INTERNATIONAL STD/SPEC |
| Grip Length | 71.25 MILLIMETERS MINIMUM AND 80.00 MILLIMETERS MAXIMUM MM |
| Width Between Flats | 17.73 MILLIMETERS MINIMUM AND 18.00 MILLIMETERS MAXIMUM MM |
| Grip Diameter | 11.73 MILLIMETERS MINIMUM AND 12.00 MILLIMETERS MAXIMUM MM |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN OVERALL |
| Color | OLIVE DRAB OR GREEN OVERALL |
| Surface Treatment | ZINC AND CHROMATE OVERALL |
| Minimum Tensile Strength | 1000 MEGAPASCALS |
| Material | STEEL PROPERTY CLASS 10.9 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 |
|---|---|
| EN1665-M12X1.75X110-10.9/ZN/D PRIMARY | International Organization for Standardization (iso) (CHE) |
| Reference | Meaning |
|---|---|
| ISO 4042/ZN/D | 3/1 Design control — primary reference International Organization for Standardization (iso) |
| EN1665-M12X1.75X110-10.9A3D | C/1 Advisory reference — outside the item-of-supply concept International Organization for Standardization (iso) |
NSN 5306-01-727-5944 is a Bolt,machine, manufactured by International Organization for Standardization (iso), classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-727-5944 has 1 manufacturer part number on file: EN1665-M12X1.75X110-10.9/ZN/D (International Organization for Standardization (iso)).
Key specifications for EN1665-M12X1.75X110-10.9/ZN/D: Extended Washer Thickness: 6.2 MILLIMETERS NOMINAL MM; Head Height: 11.8 MILLIMETERS MAXIMUM MM; External Thread Tolerance Class: 6G G; Fastener Length: 109.3 MILLIMETERS MINIMUM AND 110.7 MILLIMETERS MAXIMUM MM. 23 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.