The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-148-5152, 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 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-148-5152 |
| Primary Part Number | 3TKVRSS-21-28-108 |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corp Div Timken Super Precision |
| Status | ACTIVE |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.2500 INCHES NOMINAL IN |
| Internal Clearance | 0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN |
| Shield Quantity | 2 |
| Style Designator | SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE |
| Material Document and Classification | QQ-S-763 FED SPEC ALL MATERIAL RESPONSES OVERALL |
| Overall Outside Diameter | 1.7496 INCHES MINIMUM AND 1.7500 INCHES MAXIMUM IN |
| Features Provided | SNAP RING-GROOVE MOUNTING |
| Load Direction | RADIAL |
| Standard Tolerance Designation | ABEC NO. 5T |
| Bore Diameter | 1.3122 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN |
| Material | STEEL RETAINER |
| Material | STEEL COMP 440C BALL |
| Material | STEEL SHIELD |
| Material | STEEL COMP 440C INNER RACE |
| Material | STEEL COMP 440C OUTER RACE |
| Lubrication Material Document and Classification | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.2812 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 |
|---|---|
| 3TKVRSS-21-28-108 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| 2501725-5 PRIMARY | Honeywell International Inc. Dba Honeywell International (USA) |
| Reference | Meaning |
|---|---|
| SR542PPD3K58/235 | 3/2 Design control — primary reference U.S. Government activity |
| 2501725-5 | 5/9 Secondary reference Honeywell International Inc. Dba Honeywell |
NSN 3110-01-148-5152 is a Bearing,ball,airframe, manufactured by Mpb Corp Div Timken Super Precision, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-148-5152 has 2 manufacturer part numbers on file: 3TKVRSS-21-28-108 (Mpb Corp Div Timken Super Precision), 2501725-5 (Honeywell International Inc. Dba Honeywell International).
Key specifications for 3TKVRSS-21-28-108: Lubrication Material: GREASE; Outer Ring Width: 0.2500 INCHES NOMINAL IN; Internal Clearance: 0.0005 INCHES MINIMUM RADIAL AND 0.0008 INCHES MAXIMUM RADIAL IN; Shield Quantity: 2. 18 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.