The Bearing,ball,annular, cataloged under National Stock Number 3110-01-439-4575, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Triumph Actuation Systems Llc Div Triumph Actuation Systems - Clemmons. Government technical data includes 16 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-439-4575 |
| Primary Part Number | 2685535 |
| Item Name | Bearing,ball,annular |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Triumph Actuation Systems Llc Div Triumph Actuation Systems - Clemmons |
| Status | ACTIVE |
| Retainer Fabrication Method | MACHINED |
| Surface Finish | GROUND |
| Style Designator | COUNTERBORED OUTER RING, NON-SEPARABLE |
| Material Document and Classification | AMS 6491 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING |
| Material Document and Classification | AMS 6491 ASSN STD SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | AMS 4842 ASSN STD SINGLE MATERIAL RESPONSE RETAINER |
| Material Document and Classification | AMS 6491 ASSN STD SINGLE MATERIAL RESPONSE BALL |
| Overall Outside Diameter | 2.0467 INCHES MINIMUM AND 2.0472 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Load Direction | ANGULAR |
| Standard Tolerance Designation | ABEC NO.5 |
| Bore Diameter | 0.9839 INCHES MINIMUM AND 0.9843 INCHES MAXIMUM IN |
| Material | STEEL COMP M50 OUTER RING |
| Material | STEEL COMP M50 INNER RING |
| Material | STEEL COMP M50 BALL |
| Material | COPPER ALLOY 937 RETAINER |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 2685535 PRIMARY | Triumph Actuation Systems Llc Div Triumph Actuation Systems - Clemmons (USA) |
| 2685535 | Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport (USA) |
| Reference | Meaning |
|---|---|
| 2685535 | 5/9 Secondary reference Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| 4165046-1 | 5/9 Secondary reference Honeywell International Inc Div Aerospace-South Bend (bendix Dr) |
| 2685535 | 5/9 Secondary reference U.S. Government activity |
| MTMER-205SD618MQA5PC35 | 5/1 Secondary reference U.S. Government activity |
NSN 3110-01-439-4575 is a Bearing,ball,annular, manufactured by Triumph Actuation Systems Llc Div Triumph Actuation Systems - Clemmons, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-439-4575 has 2 manufacturer part numbers on file: 2685535 (Triumph Actuation Systems Llc Div Triumph Actuation Systems - Clemmons), 2685535 (Triumph Actuation Systems, Llc Div Triumph Actuation Systems - Freeport).
Key specifications for 2685535: Retainer Fabrication Method: MACHINED; Surface Finish: GROUND; Style Designator: COUNTERBORED OUTER RING, NON-SEPARABLE; Material Document and Classification: AMS 6491 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING. 16 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.