The Bearing,ball,annular, cataloged under National Stock Number 3110-01-055-2047, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-055-2047 |
| Primary Part Number | 12277722-2 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | U S Army Tank Automotive Command Amsta-Im-Mm |
| Status | ACTIVE |
| Surface Finish | UNGROUND |
| Style Designator | NON-LOADING GROOVE, NON-SEPARABLE |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Material Document and Classification | QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE SEPARATOR |
| Overall Outside Diameter | 8.0000 INCHES NOMINAL IN |
| Features Provided | MOUNTING GROOVE |
| Bore Shape | STRAIGHT |
| Load Direction | ANGULAR |
| Internal Fit-Up Contact Angular Direction | PRIMARILY RADIAL |
| Bore Diameter | 7.5000 INCHES NOMINAL IN |
| Material | COPPER ALLOY SEPARATOR |
| Material | STEEL COMP E52100 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 |
|---|---|
| KA075AR0 | Kaydon Corporation Dba Kaydon Corp (USA) |
| 12277722-2 PRIMARY | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
NSN 3110-01-055-2047 is a Bearing,ball,annular, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-055-2047 has 2 manufacturer part numbers on file: KA075AR0 (Kaydon Corporation Dba Kaydon Corp), 12277722-2 (U S Army Tank Automotive Command Amsta-Im-Mm).
Key specifications for 12277722-2: Surface Finish: UNGROUND; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Material Document and Classification: QQ-B-613 FED SPEC SINGLE MATERIAL RESPONSE SEPARATOR. 12 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.