The Ball,bearing, cataloged under National Stock Number 3110-01-197-0739, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 5 specifications, cited from the U.S. Government catalog. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3110-01-197-0739 |
| Item Name | Ball,bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Rolling Element Diameter | 0.5000 INCHES NOMINAL IN |
| Style Designator | BALL |
| Material Document and Classification | MIL-B-1083,GR 12 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR BALLS, GRADE 200 |
| Material | TUNGSTEN CARBIDE 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 |
|---|---|
| 337337-18 | C/1 Advisory reference — outside the item-of-supply concept Lockheed Martin Corporation Div Rms - Mitchel Field |
| 2731876 PIECE 6 | 5/2 Secondary reference U.S. Government activity |
| 1585001 | 3/2 Design control — primary reference U.S. Government activity |
| 2731829 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-197-0739 is a Ball,bearing, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 5325-01-720-9972. Verify interchangeability with system specifications before substitution.
Key specifications for 3110-01-197-0739: Rolling Element Diameter: 0.5000 INCHES NOMINAL IN; Style Designator: BALL; Material Document and Classification: MIL-B-1083,GR 12 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Standard Tolerance Designation: AFBMA STD TOLERANCE FOR BALLS, GRADE 200. 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.