The Bearing,ball,annular, cataloged under National Stock Number 3110-01-078-7610, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is New Hampshire Ball Bearings Inc Div Precision Division. Government technical data includes 19 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-078-7610 |
| Primary Part Number | 12271901 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | New Hampshire Ball Bearings Inc Div Precision Division |
| Status | ACTIVE |
| Lubrication Material | OIL LUBRICATING |
| Outer Ring Width | 0.1406 INCHES NOMINAL IN |
| Surface Finish | UNGROUND |
| Shield Quantity | 2 |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | AISI 440C ASSN STD SINGLE MATERIAL RESPONSE BALL |
| Overall Outside Diameter | 0.3125 INCHES NOMINAL IN |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Alignment Type | RIGID |
| Standard Tolerance Designation | ABEC NO. 7P |
| Bore Diameter | 0.1250 INCHES NOMINAL IN |
| Material | STEEL COMP 440C INNER RING |
| Material | STEEL COMP 440C OUTER RING |
| Material | STEEL CORROSION RESISTING RETAINER |
| Material | STEEL COMP 440C BALL |
| Material | STEEL CORROSION RESISTING SHIELD |
| Lubrication Material Document and Classification | MIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.1718 INCHES NOMINAL 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 |
|---|---|
| 12271901 | Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA) |
| 12271901 PRIMARY | New Hampshire Ball Bearings Inc Div Precision Division (USA) |
| 12271901 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| Reference | Meaning |
|---|---|
| SSRI-518ZZEECV52HA7P13 | 5/1 Secondary reference New Hampshire Ball Bearings Inc Div Precision Division |
| 12271899 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| SR2-5PPEEC39K13/7 | 5/9 Secondary reference U.S. Government activity |
| F964 | 5/1 Secondary reference Mpb Corp Div Timken Super Precision |
NSN 3110-01-078-7610 is a Bearing,ball,annular, manufactured by New Hampshire Ball Bearings Inc Div Precision Division, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-078-7610 has 3 manufacturer part numbers on file: 12271901 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 12271901 (New Hampshire Ball Bearings Inc Div Precision Division), 12271901 (Mpb Corp Div Timken Super Precision).
Key specifications for 12271901: Lubrication Material: OIL LUBRICATING; Outer Ring Width: 0.1406 INCHES NOMINAL IN; Surface Finish: UNGROUND; Shield Quantity: 2. 19 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.