The Bearing,ball,annular, cataloged under National Stock Number 3110-00-421-1816, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Kelly Manufacturing Company. Government technical data includes 13 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-421-1816 |
| Primary Part Number | C62921 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Kelly Manufacturing Company |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Lubrication Material | GREASE |
| Surface Finish | GROUND |
| Shield Quantity | 2 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Overall Outside Diameter | 0.6250 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO.1 |
| Bore Diameter | 0.2500 INCHES NOMINAL IN |
| Material | STEEL COMP E52100 OVERALL |
| Lubrication Material Document and Classification | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| 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 |
|---|---|
| C62921 PRIMARY | Kelly Manufacturing Company (USA) |
| Reference | Meaning |
|---|---|
| SR4CHH3P58LG31-5-8MGS | 5/9 Secondary reference Mpb Corp Div Timken Super Precision |
| C62921 | 5/9 Secondary reference Mpb Corp Div Timken Super Precision |
| C62921 | 5/9 Secondary reference Allen R C Co Inc Cash Register Div |
| C62921 | 5/9 Secondary reference Allen R C Instruments Inc |
NSN 3110-00-421-1816 is a Bearing,ball,annular, manufactured by Kelly Manufacturing Company, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-421-1816 has 1 manufacturer part number on file: C62921 (Kelly Manufacturing Company).
Key specifications for C62921: Retainer Fabrication Method: PRESSED; Lubrication Material: GREASE; Surface Finish: GROUND; Shield Quantity: 2. 13 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.