The Bolt,machine, cataloged under National Stock Number 5306-01-512-1660, is classified within Federal Supply Class 5306 (Bolts) of the Hardware and Abrasives group. The manufacturer of record is Nd Defense Llc. Government technical data includes 14 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5306-01-512-1660 |
| Primary Part Number | 31070R1 |
| Item Name | Bolt,machine |
| FSC / FSG | 5306 / 53 — Bolts |
| Manufacturer | Nd Defense Llc |
| Status | ACTIVE |
| Extended Washer Thickness | 1.8 MILLIMETERS MINIMUM MM |
| Head Height | 11.8 MILLIMETERS MAXIMUM MM |
| Fastener Length | 80.0 MILLIMETERS NOMINAL MM |
| Extended Washer Diameter | 23.8 MILLIMETERS MAXIMUM MM |
| Thread Pitch in Millimeters | 1.7 |
| Thread Length | 50.0 MILLIMETERS MAXIMUM MM |
| Material Document and Classification | ISO 68, 261, 262, 888, 898/1, 965/1 AND 965/2 .ANSI B-18.2.3.9M - 2001 (HEAVY HEX DIMENSIONS) NATIONAL STD/SPEC ALL MATERIAL RESPONSES OVERALL |
| Nominal Thread Diameter | 12.0 MILLIMETERS MM |
| Head Style | HEXAGON EXTENDED WASHER |
| Thread Direction | RIGHT-HAND |
| Surface Treatment | PHOSPHATE OVERALL |
| Thread Class | SCREW THREADS SHALL BE STANDARD COARSE PITCH EXTERNAL METRIC SCREW THREADS WITH TOLERANCE CLASS 6G CONFORMING TO ASME B1.13M G |
| 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 |
|---|---|
| 31070R1 PRIMARY | Nd Defense Llc (USA) |
| Reference | Meaning |
|---|---|
| 31070R1 | 5/9 Secondary reference U.S. Government activity |
NSN 5306-01-512-1660 is a Bolt,machine, manufactured by Nd Defense Llc, classified under FSC 5306, Bolts. Status: active.
NSN 5306-01-512-1660 has 1 manufacturer part number on file: 31070R1 (Nd Defense Llc).
Key specifications for 31070R1: Extended Washer Thickness: 1.8 MILLIMETERS MINIMUM MM; Head Height: 11.8 MILLIMETERS MAXIMUM MM; Fastener Length: 80.0 MILLIMETERS NOMINAL MM; Extended Washer Diameter: 23.8 MILLIMETERS MAXIMUM MM. 14 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.