The Bearing,plain,self-Aligning, cataloged under National Stock Number 3120-01-040-4861, is classified within Federal Supply Class 3120 (Bearings, Plain, Unmounted) of the Bearings group. The manufacturer of record is New Hampshire Ball Bearings Inc Div Astro Division. 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3120-01-040-4861 |
| Primary Part Number | AG6VS |
| Item Name | Bearing,plain,self-Aligning |
| FSC / FSG | 3120 / 31 — Bearings, Plain, Unmounted |
| Manufacturer | New Hampshire Ball Bearings Inc Div Astro Division |
| Status | ACTIVE |
| Inner Member Width | 0.4010 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN |
| Hardness Rating | 57.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM INNER MEMBER |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER |
| Outer Member Width | 0.3070 INCHES MINIMUM AND 0.3170 INCHES MAXIMUM IN |
| Style Designator | WITHOUT INSERT OR LINER WITH STAKING GROOVE |
| Lubrication Feature | GROOVE EXTERNAL OUTER MEMBER |
| Lubrication Feature | GROOVE INTERNAL OUTER MEMBER |
| Surface Treatment | CADMIUM OUTER RACE MEMBER |
| Surface Treatment | CHROMIUM INNER MEMBER |
| Static Radial Load Rating | 15600 POUNDS LBS |
| Bore Diameter | 0.3745 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 OR STEEL COMP 440C INNER MEMBER |
| Material | STEEL COMP 4130 OUTER RACE MEMBER |
| Outer Member Outside Diameter | 0.8120 INCHES MINIMUM AND 0.8125 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 |
|---|---|
| AG6VS PRIMARY | New Hampshire Ball Bearings Inc Div Astro Division (USA) |
| Reference | Meaning |
|---|---|
| KSBG6-25S | 3/2 Design control — primary reference U.S. Government activity |
| 202-19012K6S | 7/2 Vendor item drawing reference U.S. Government activity |
NSN 3120-01-040-4861 is a Bearing,plain,self-Aligning, manufactured by New Hampshire Ball Bearings Inc Div Astro Division, classified under FSC 3120, Bearings, Plain, Unmounted. Status: active.
NSN 3120-01-040-4861 has 1 manufacturer part number on file: AG6VS (New Hampshire Ball Bearings Inc Div Astro Division).
Key specifications for AG6VS: Inner Member Width: 0.4010 INCHES MINIMUM AND 0.4060 INCHES MAXIMUM IN; Hardness Rating: 57.0 ROCKWELL C MINIMUM AND 61.0 ROCKWELL C MAXIMUM INNER MEMBER; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER; Outer Member Width: 0.3070 INCHES MINIMUM AND 0.3170 INCHES MAXIMUM IN. 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.