The Bearing,ball,annular, cataloged under National Stock Number 3110-01-234-3839, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Minebea Mitsumi Inc. Div Rodend-Fastener Business Unit. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-234-3839 |
| Primary Part Number | SSRIF-618ZZRA |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Minebea Mitsumi Inc. Div Rodend-Fastener Business Unit |
| Status | ACTIVE |
| FSC Application Data | 6615-01-225-8241 |
| Lubrication Material | GREASE |
| Flange Outside Diameter | 0.4170 INCHES MINIMUM AND 0.4220 INCHES MAXIMUM IN |
| Surface Finish | GROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Flange Width | 0.0290 INCHES MINIMUM AND 0.0310 INCHES MAXIMUM IN |
| Outer Ring Outside Diameter | 0.3747 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN |
| Bore Diameter | 0.1248 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN |
| Material | STEEL COMP 440C 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 |
|---|---|
| SSRIF-618ZZRA PRIMARY | Minebea Mitsumi Inc. Div Rodend-Fastener Business Unit (JPN) |
| SSRIF-618ZZRA3P18LG68 PRIMARY | New Hampshire Ball Bearings Inc Div Precision Division (USA) |
| SFR2-6HHK25LG21(3) PRIMARY | S/n Precision Enterprises, Inc. Dba Pacamor /kubar Bearings (USA) |
| S618FCHH-3P25LY-70 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| Reference | Meaning |
|---|---|
| SSRIF-618ZZRA | 5/9 Secondary reference Minebea Mitsumi Inc. |
| MKX4012X-48-3/20G21/25 | 5/9 Secondary reference Rmb Miniature Bearings Inc |
| AM8K24DDFS160 | 5/9 Secondary reference Timken Co Div the Timken Company |
| SFR2-63PPK25/168 | 5/9 Secondary reference U.S. Government activity |
| 0845-114 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell International |
| S312-7 | 5/9 Secondary reference Simmonds Precision Products Inc |
| SRF824ZZT3C25K2G-32 | 5/9 Secondary reference Schaeffler Aerospace Canada Inc Div Fag Aerospace |
| MKX40120X-48-3/2 | C/1 Advisory reference — outside the item-of-supply concept Rmb Miniature Bearings Inc |
NSN 3110-01-234-3839 is a Bearing,ball,annular, manufactured by Minebea Mitsumi Inc. Div Rodend-Fastener Business Unit, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-234-3839 has 4 manufacturer part numbers on file: SSRIF-618ZZRA (Minebea Mitsumi Inc. Div Rodend-Fastener Business Unit), SSRIF-618ZZRA3P18LG68 (New Hampshire Ball Bearings Inc Div Precision Division), SFR2-6HHK25LG21(3) (S/n Precision Enterprises, Inc. Dba Pacamor /kubar Bearings), S618FCHH-3P25LY-70 (Mpb Corp Div Timken Super Precision).
Key specifications for SSRIF-618ZZRA: FSC Application Data: 6615-01-225-8241; Lubrication Material: GREASE; Flange Outside Diameter: 0.4170 INCHES MINIMUM AND 0.4220 INCHES MAXIMUM IN; Surface Finish: GROUND. 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.