The Stud,plain, cataloged under National Stock Number 5307-00-206-2528, is classified within Federal Supply Class 5307 (Studs) of the Hardware and Abrasives group. The manufacturer of record is Meritor Heavy Vehicle Systems, Llc. Government technical data includes 17 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5307-00-206-2528 |
| Primary Part Number | 4X640 |
| Item Name | Stud,plain |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Cotter Pin Hole Diameter | 0.125 INCHES NOMINAL FIRST HOLE IN |
| Thread Length | 1.234 INCHES MAXIMUM NUT THREAD IN |
| Thread Length | 1.250 INCHES MAXIMUM STUD THREAD IN |
| Hardness Rating | 27.6 ROCKWELL C MINIMUM AND 34.3 ROCKWELL C MAXIMUM |
| Thread Pitch Diameters | +0.6880 TO 0.6910 INCHES STUD THREAD IN |
| Material Document and Classification | ASTM A322 ASSN STD SINGLE MATERIAL RESPONSE OR ASTM A331 ASSN STD SINGLE MATERIAL RESPONSE |
| Thread Direction | RIGHT-HAND STUD THREAD |
| Thread Direction | RIGHT-HAND NUT THREAD |
| Nominal Thread Size | 0.750 INCHES STUD THREAD IN |
| Nominal Thread Size | 0.750 INCHES NUT THREAD IN |
| Thread Class | 3A NUT THREAD A |
| Thread Quantity Per Inch | 10 STUD THREAD |
| Thread Quantity Per Inch | 16 NUT THREAD |
| Material | STEEL COMP 3135 |
| Thread Series Designator | UNF NUT THREAD |
| Thread Series Designator | UNS STUD THREAD |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.125 INCHES NOMINAL FIRST HOLE IN |
| 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 |
|---|---|
| 4X640 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| Reference | Meaning |
|---|---|
| 4X640 | 5/9 Secondary reference Available Truck Co |
NSN 5307-00-206-2528 is a Stud,plain, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-206-2528 has 1 manufacturer part number on file: 4X640 (Meritor Heavy Vehicle Systems, Llc).
Key specifications for 4X640: Cotter Pin Hole Diameter: 0.125 INCHES NOMINAL FIRST HOLE IN; Thread Length: 1.234 INCHES MAXIMUM NUT THREAD IN; Thread Length: 1.250 INCHES MAXIMUM STUD THREAD IN; Hardness Rating: 27.6 ROCKWELL C MINIMUM AND 34.3 ROCKWELL C MAXIMUM. 17 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.