The Bearing,ball,annular, cataloged under National Stock Number 3110-01-263-3490, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Mpb Corp Div Timken Super Precision. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3110-01-263-3490 |
| Primary Part Number | S8516FCHHE |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corp Div Timken Super Precision |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Lubrication Material | OIL LUBRICATING |
| Outer Ring Width | 0.1552 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN |
| Internal Clearance | 0.0002 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN |
| Relationship to Similar Equipment | SIMILAR TO RN 81349-022X31201X2131 EXCEPT STAMPED CROWN STNLS RTN |
| Flange Outside Diameter | 0.5469 INCHES NOMINAL IN |
| Surface Finish | GROUND |
| Shield Quantity | 2 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | AISI/SAE J405,UNS S41000 ASSN STD SINGLE MATERIAL RESPONSE RETAINER |
| Material Document and Classification | AISI/SAE J405,UNS S41000 ASSN STD SINGLE MATERIAL RESPONSE SHIELD |
| Material Document and Classification | AISI/SAE J405,UNS S44004 ASSN STD SINGLE MATERIAL RESPONSE BALL |
| Material Document and Classification | AISI/SAE J405,UNS S44004 ASSN STD SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | AISI/SAE J405,UNS S44004 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Functional Description | LOW TORQUE STARTUP |
| Flange Width | 0.0312 INCHES NOMINAL IN |
| Outer Ring Outside Diameter | 0.4998 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Standard Tolerance Designation | ABEC NO. 7P |
| Bore Diameter | 0.3123 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN |
| Material | STEEL COMP 440C INNER RING |
| Material | STEEL COMP 440C OUTER RING |
| Material | STEEL COMP 440C BALL |
| Material | STEEL COMP 410 SHIELD |
| Material | STEEL COMP 410 RETAINER |
| Lubrication Material Document and Classification | MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE AND ANDEROL 401D MFR REF SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.1865 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN |
| 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 |
|---|---|
| S8516FCHHE PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| S8516FCHHE7P28LO2 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| Reference | Meaning |
|---|---|
| SFR1810PPEEK28/7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-263-3490 is a Bearing,ball,annular, manufactured by Mpb Corp Div Timken Super Precision, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-263-3490 has 2 manufacturer part numbers on file: S8516FCHHE (Mpb Corp Div Timken Super Precision), S8516FCHHE7P28LO2 (Mpb Corp Div Timken Super Precision).
Key specifications for S8516FCHHE: Retainer Fabrication Method: MACHINED; Lubrication Material: OIL LUBRICATING; Outer Ring Width: 0.1552 INCHES MINIMUM AND 0.1562 INCHES MAXIMUM IN; Internal Clearance: 0.0002 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN. 28 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.