The Bearing,ball,annular, cataloged under National Stock Number 3110-01-053-6522, 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 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3110-01-053-6522 |
| Primary Part Number | 3TWNF12P-16P |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Mpb Corporation Dba Mpb Corp |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Lubrication Material | GREASE |
| Surface Finish | UNGROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | A1S1-S44004 ASSN STD 1ST MATERIAL RESPONSE AND ASTM-D709 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Overall Outside Diameter | 1.0000 INCHES NOMINAL IN |
| Features Provided | MOUNTING GROOVE |
| Bore Shape | STRAIGHT |
| Load Direction | RADIAL |
| Bore Diameter | 0.7500 INCHES NOMINAL IN |
| Material | STEEL COMP 440C AND PLASTIC OVERALL |
| 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 |
|---|---|
| 3TWNF12P-16P PRIMARY | Mpb Corporation Dba Mpb Corp (USA) |
| 12277717-2 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| Reference | Meaning |
|---|---|
| 3TWNF12P-16 | 5/9 Secondary reference Mpb Corporation Dba Mpb Corp |
NSN 3110-01-053-6522 is a Bearing,ball,annular, manufactured by Mpb Corporation Dba Mpb Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-053-6522 has 2 manufacturer part numbers on file: 3TWNF12P-16P (Mpb Corporation Dba Mpb Corp), 12277717-2 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 3TWNF12P-16P: Retainer Fabrication Method: MACHINED; Lubrication Material: GREASE; Surface Finish: UNGROUND; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE. 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.