The Stud,ball, cataloged under National Stock Number 5307-00-733-2452, 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 16 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5307-00-733-2452 |
| Primary Part Number | 2910U21 |
| Item Name | Stud,ball |
| FSC / FSG | 5307 / 53 — Studs |
| Manufacturer | Meritor Heavy Vehicle Systems, Llc |
| Status | ACTIVE |
| Cotter Pin Hole Diameter | 0.201 INCHES NOMINAL FIRST HOLE IN |
| Thread Length | 1.375 INCHES MINIMUM LOCATION NOT OTHERWISE SPECIFIED IN |
| Taper Minor Diameter | 1.344 INCHES MINIMUM AND 1.406 INCHES MAXIMUM IN |
| Style Designator | BALL |
| Features Provided | CASEHARDENED |
| Thread Direction | RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED |
| Nominal Thread Size | 1.250 INCHES LOCATION NOT OTHERWISE SPECIFIED IN |
| Body Length | 1.625 INCHES NOMINAL IN |
| Distance From Spherical Head Centerline to Head End | 0.844 INCHES MINIMUM AND 0.906 INCHES MAXIMUM IN |
| Thread Class | 2A LOCATION NOT OTHERWISE SPECIFIED A |
| Thread Quantity Per Inch | 12 LOCATION NOT OTHERWISE SPECIFIED |
| Material | STEEL |
| Neck Diameter | 1.219 INCHES MINIMUM AND 1.281 INCHES MAXIMUM IN |
| Thread Series Designator | UNF LOCATION NOT OTHERWISE SPECIFIED |
| Distance From Cotter Pin Hole Centerline to Nut End | 0.250 INCHES NOMINAL FIRST HOLE IN |
| Head Diameter | 1.965 INCHES MINIMUM AND 1.968 INCHES MAXIMUM 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 |
|---|---|
| 23SP13 | Mack Trucks Inc Parts Opn (USA) |
| 7332452 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 2910U21 PRIMARY | Meritor Heavy Vehicle Systems, Llc (USA) |
| 32MS3 | Eaton Corp Dba Eaton Aerospace Jackson (USA) |
| Reference | Meaning |
|---|---|
| 1005-733-2452 | 6/9 Informative reference only E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales |
| 2910U21 | 5/9 Secondary reference Paccar Government Group Co Yarrow Bay Office Pk |
NSN 5307-00-733-2452 is a Stud,ball, manufactured by Meritor Heavy Vehicle Systems, Llc, classified under FSC 5307, Studs. Status: active.
NSN 5307-00-733-2452 has 4 manufacturer part numbers on file: 23SP13 (Mack Trucks Inc Parts Opn), 7332452 (U S Army Tank Automotive Command Amsta-Im-Mm), 2910U21 (Meritor Heavy Vehicle Systems, Llc), 32MS3 (Eaton Corp Dba Eaton Aerospace Jackson).
Key specifications for 2910U21: Cotter Pin Hole Diameter: 0.201 INCHES NOMINAL FIRST HOLE IN; Thread Length: 1.375 INCHES MINIMUM LOCATION NOT OTHERWISE SPECIFIED IN; Taper Minor Diameter: 1.344 INCHES MINIMUM AND 1.406 INCHES MAXIMUM IN; Style Designator: BALL. 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.