The Bearing,ball,annular, cataloged under National Stock Number 3110-01-386-2104, 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 14 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-386-2104 |
| Primary Part Number | S814RZZ5P25LY |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corp Div Timken Super Precision |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Internal Fit-Up Designation | STANDARD |
| Surface Finish | GROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Overall Outside Diameter | 0.4998 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Seal Quantity | 2 |
| Standard Tolerance Designation | ABEC NO. 5P |
| Bore Diameter | 0.2498 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Material | STEEL CORROSION RESISTING OVERALL |
| Lubrication Material Document and Classification | MIL-G-21164 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 |
|---|---|
| S814RZZ5P25LY PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| SSRI-814LLRA5P25LY34 | New Hampshire Ball Bearings Inc Div Precision Division (USA) |
| SR188TTA5K25LG60 PRIMARY | S/n Precision Enterprises, Inc. Dba Pacamor /kubar Bearings (USA) |
| Reference | Meaning |
|---|---|
| SSR412LLRA5P25LY-34 | 3/2 Design control — primary reference U.S. Government activity |
| S696-3 | 7/2 Vendor item drawing reference Simmonds Precision Products Inc |
| SSR1-814LLRA5P25LY34 | 3/2 Design control — primary reference U.S. Government activity |
NSN 3110-01-386-2104 is a Bearing,ball,annular, manufactured by Mpb Corp Div Timken Super Precision, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-386-2104 has 3 manufacturer part numbers on file: S814RZZ5P25LY (Mpb Corp Div Timken Super Precision), SSRI-814LLRA5P25LY34 (New Hampshire Ball Bearings Inc Div Precision Division), SR188TTA5K25LG60 (S/n Precision Enterprises, Inc. Dba Pacamor /kubar Bearings).
Key specifications for S814RZZ5P25LY: Retainer Fabrication Method: PRESSED; Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Internal Fit-Up Designation: STANDARD. 14 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.