The Bearing Unit,ball, cataloged under National Stock Number 3130-01-057-0773, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-057-0773 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Status | ACTIVE |
| Mounting Hole Type | ROUND, THREADED |
| Material Document and Classification | SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Overall Outside Diameter | 4.2400 INCHES MINIMUM AND 4.2600 INCHES MAXIMUM IN |
| Bore Diameter | 1.7740 INCHES NOMINAL IN |
| Material | STEEL COMP 4140 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| 20S25 | 3/9 Design control — primary reference Louis Allis Co the This Company Has Gone Bankrupt and Has Been Purchased by 3 Companies |
NSN 3130-01-057-0773 is a Bearing Unit,ball, classified under FSC 3130, Bearings, Mounted. Status: active.
Key specifications for 3130-01-057-0773: Mounting Hole Type: ROUND, THREADED; Material Document and Classification: SAE 4140 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Overall Outside Diameter: 4.2400 INCHES MINIMUM AND 4.2600 INCHES MAXIMUM IN; Bore Diameter: 1.7740 INCHES NOMINAL IN. 5 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.