The Bearing,ball,thrust, cataloged under National Stock Number 3110-01-465-8971, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. Government technical data includes 9 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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 | 3110-01-465-8971 |
| Primary Part Number | 51220 |
| Item Name | Bearing,ball,thrust |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Surface Finish | GROUND |
| Style Designator | GROOVED RACE SURFACE |
| Thrust Directional Capability Designation | SINGLE |
| Overall Outside Diameter | 5.9060 INCHES NOMINAL IN |
| Bore Smallest Diameter | 3.9370 INCHES NOMINAL IN |
| Alignment Type | RIGID |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR THRUST BEARINGS |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| 8880-018 ITEM NO 42 | Velan Valve Corp. (USA) |
| SKF51220 | Skf Usa Inc. (USA) |
| 51220 PRIMARY | Skf Usa Inc. (USA) |
NSN 3110-01-465-8971 is a Bearing,ball,thrust, manufactured by Skf Usa Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-465-8971 has 3 manufacturer part numbers on file: 8880-018 ITEM NO 42 (Velan Valve Corp.), SKF51220 (Skf Usa Inc.), 51220 (Skf Usa Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3530-01-571-4130. Verify interchangeability with system specifications before substitution.
Key specifications for 51220: Retainer Fabrication Method: PRESSED; Overall Height: 1.4961 INCHES NOMINAL IN; Surface Finish: GROUND; Style Designator: GROOVED RACE SURFACE. 9 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.