The Bearing,ball,annular, cataloged under National Stock Number 3110-00-726-4397, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Astronautics Corporation of America. Government technical data includes 15 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 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-726-4397 |
| Primary Part Number | 10131-309 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Astronautics Corporation of America |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Internal Fit-Up Designation | STANDARD |
| Flange Outside Diameter | 0.4220 INCHES NOMINAL IN |
| Surface Finish | GROUND |
| Style Designator | COUNTERBORED OUTER RING, NON-SEPARABLE |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Flange Width | 0.0230 INCHES NOMINAL IN |
| Outer Ring Outside Diameter | 0.3750 INCHES NOMINAL IN |
| Standard Tolerance Designation | ABEC NO.3 |
| Bore Diameter | 0.1875 INCHES NOMINAL IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | STEEL CORROSION RESISTING RETAINER |
| Material | STEEL BALL |
| 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 |
|---|---|
| 10131-309 PRIMARY | Astronautics Corporation of America (USA) |
NSN 3110-00-726-4397 is a Bearing,ball,annular, manufactured by Astronautics Corporation of America, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-726-4397 has 1 manufacturer part number on file: 10131-309 (Astronautics Corporation of America).
1 possible match (shared part number, not a government interchangeability claim): 5905-01-185-1318. Verify interchangeability with system specifications before substitution.
Key specifications for 10131-309: Retainer Fabrication Method: PRESSED; Internal Fit-Up Designation: STANDARD; Flange Outside Diameter: 0.4220 INCHES NOMINAL IN; Surface Finish: GROUND. 15 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.