The Ball,bearing, cataloged under National Stock Number 3110-01-347-9941, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Winsted Precision Ball Corp. Government technical data includes 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3110-01-347-9941 |
| Primary Part Number | 120281ZB12F00A0 |
| Item Name | Ball,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Winsted Precision Ball Corp |
| Status | ACTIVE |
| Rolling Element Diameter | 0.2809 INCHES NOMINAL0.2809 INCHES NOMINAL IN |
| Style Designator | BALLBALL |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR BALLS, GRADE 5AFBMA STD TOLERANCE FOR BALLS, GRADE 5 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | N |
| Part Number | Manufacturer |
|---|---|
| 120281ZB12F00A0 PRIMARY | Winsted Precision Ball Corp (USA) |
| Reference | Meaning |
|---|---|
| 5906921-4 | 1/2 Source control — Government-approved source U.S. Government activity |
NSN 3110-01-347-9941 is a Ball,bearing, manufactured by Winsted Precision Ball Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-347-9941 has 1 manufacturer part number on file: 120281ZB12F00A0 (Winsted Precision Ball Corp).
Key specifications for 120281ZB12F00A0: Rolling Element Diameter: 0.2809 INCHES NOMINAL0.2809 INCHES NOMINAL IN; Style Designator: BALLBALL; Standard Tolerance Designation: AFBMA STD TOLERANCE FOR BALLS, GRADE 5AFBMA STD TOLERANCE FOR BALLS, GRADE 5. 3 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.