The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-01-612-6002, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Pem Machine and Tool Co Inc. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-612-6002 |
| Primary Part Number | CLS-M4-2 |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Pem Machine and Tool Co Inc |
| Status | ACTIVE |
| Thread Series | M |
| Thread Pitch in Millimeters | 0.7 |
| Hardness Rating | 70.0 ROCKWELL B MAXIMUM AND 125.0 BRINELL STANDARD MAXIMUM |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 4.0 MILLIMETERS MM |
| Nut Diameter | 7.95 MILLIMETERS NOMINAL MM |
| Pilot Diameter | 5.38 MILLIMETERS NOMINAL MM |
| Pilot Length | 1.38 MILLIMETERS NOMINAL MM |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 3.38 MILLIMETERS NOMINAL MM |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | CLINCH |
| Thread Class | H6 |
| Material | STEEL CORROSION RESISTING OVERALL |
| 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 |
|---|---|
| 433-600240-2 | Raytheon Company (USA) |
| 433-600240-2 | Naval Sea Systems Command (USA) |
| CLS-M4-2 PRIMARY | Pem Machine and Tool Co Inc (USA) |
NSN 5310-01-612-6002 is a Nut,self-Locking,clinch, manufactured by Pem Machine and Tool Co Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-612-6002 has 3 manufacturer part numbers on file: 433-600240-2 (Raytheon Company), 433-600240-2 (Naval Sea Systems Command), CLS-M4-2 (Pem Machine and Tool Co Inc).
Key specifications for CLS-M4-2: Thread Series: M; Thread Pitch in Millimeters: 0.7; Hardness Rating: 70.0 ROCKWELL B MAXIMUM AND 125.0 BRINELL STANDARD MAXIMUM; Thread Direction: RIGHT-HAND. 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.