The Bearing,roller,airframe, cataloged under National Stock Number 3110-01-397-5485, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Rexnord Industries, Llc Div Aerosspace Bearing Operation. Government technical data includes 15 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-397-5485 |
| Primary Part Number | BACB10C99AYT |
| Item Name | Bearing,roller,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Rexnord Industries, Llc Div Aerosspace Bearing Operation |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Outer Ring Width | 1.5000 INCHES NOMINAL IN |
| Style Designator | CONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING |
| Overall Outside Diameter | 3.0000 INCHES NOMINAL IN |
| Seal Quantity | 2 |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS |
| Bore Diameter | 0.8750 INCHES NOMINAL IN |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAL |
| Material | STEEL COMP 4140 SLEEVE |
| Material | COPPER ALLOY RETAINER |
| Material | STEEL COMP E52100 ROLLER |
| Material | STEEL COMP E52100 INNER RACE |
| Material | STEEL COMP 4140 LOCKING COLLAR |
| Material | STEEL COMP E52100 OUTER RACE |
| Inner Ring Width | 2.0000 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 |
|---|---|
| BACB10C99AYT PRIMARY | Rexnord Industries, Llc Div Aerosspace Bearing Operation (USA) |
| Reference | Meaning |
|---|---|
| BACB10C99AYT | 7/2 Vendor item drawing reference U.S. Government activity |
| DAS14-48A1-502 | 5/1 Secondary reference Rexnord Industries, Llc Div Aerosspace Bearing Operation |
| DAS14-48A-14 | 5/9 Secondary reference Rexnord Industries, Llc Div Aerosspace Bearing Operation |
NSN 3110-01-397-5485 is a Bearing,roller,airframe, manufactured by Rexnord Industries, Llc Div Aerosspace Bearing Operation, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-397-5485 has 1 manufacturer part number on file: BACB10C99AYT (Rexnord Industries, Llc Div Aerosspace Bearing Operation).
Key specifications for BACB10C99AYT: Bearing Seal Type: CONTACT; Outer Ring Width: 1.5000 INCHES NOMINAL IN; Style Designator: CONCAVE ROLLERS, DOUBLE CLOSURE, SELF ALIGNING; Overall Outside Diameter: 3.0000 INCHES NOMINAL IN. 15 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.