The Bearing,ball,airframe, cataloged under National Stock Number 3110-00-253-7654, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Mpb Corporation Dba Mpb Corp. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3110-00-253-7654 |
| Primary Part Number | TCB14-21SU5-8 |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corporation Dba Mpb Corp |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Outer Ring Width | 0.2500 INCHES NOMINAL IN |
| Style Designator | SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE |
| Overall Outside Diameter | 1.3121 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Bore Diameter | 0.8748 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | COPPER ALLOY RETAINER |
| Material | STEEL BALL |
| Inner Ring Width | 0.2802 INCHES MINIMUM AND 0.2812 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 |
|---|---|
| TCB14-21SU5-8 PRIMARY | Mpb Corporation Dba Mpb Corp (USA) |
| Reference | Meaning |
|---|---|
| 640837 | 7/2 Vendor item drawing reference Eaton Aerospace, Llc Dba Jackson South |
NSN 3110-00-253-7654 is a Bearing,ball,airframe, manufactured by Mpb Corporation Dba Mpb Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-253-7654 has 1 manufacturer part number on file: TCB14-21SU5-8 (Mpb Corporation Dba Mpb Corp).
Key specifications for TCB14-21SU5-8: Retainer Fabrication Method: MACHINED; Outer Ring Width: 0.2500 INCHES NOMINAL IN; Style Designator: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE; Overall Outside Diameter: 1.3121 INCHES MINIMUM AND 1.3125 INCHES MAXIMUM IN. 11 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.