The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-271-4790, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Airbus Helicopters (ets De Marignane). Government technical data includes 25 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3110-01-271-4790 |
| Primary Part Number | 704A33-651-094 |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Airbus Helicopters (ets De Marignane) |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Lubrication Material | LUBRICANT |
| Outer Ring Width | 0.4325 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN |
| Internal Clearance | 0.0004 INCHES MINIMUM RADIAL AND 0.0010 INCHES MAXIMUM RADIAL IN |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 1,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE ALL EXTERNAL/EXPOSED METAL SURFACES |
| Relationship to Similar Equipment | SIMILAR TO NSN 3110-00-027-8142 |
| Supplementary Features | M65.0 TO P350.0 DEG F TEMP RANGE DEGF |
| Style Designator | SINGLE ROW INNER RING EXTENDED BOTH SIDES |
| Material Document and Classification | AISI/SAE J404 UNS G52986 ASSN STD SINGLE MATERIAL RESPONSE BALL |
| Material Document and Classification | AISI/SAE J404 UNS G52986 ASSN STD SINGLE MATERIAL RESPONSE INNER RING |
| Material Document and Classification | AISI/SAE J404 UNS G52986 ASSN STD SINGLE MATERIAL RESPONSE OUTER RING |
| Material Document and Classification | PLYA-SEAL MFR REF SINGLE MATERIAL RESPONSE SEAL |
| Overall Outside Diameter | 1.9995 INCHES MINIMUM AND 2.0000 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Surface Treatment | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES |
| Seal Quantity | 2 |
| Functional Description | INTMD DUTY ACFT CONT SYS |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS |
| Bore Diameter | 0.9995 INCHES MINIMUM AND 1.0000 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 BALL |
| Material | PLASTIC TETRAFLUOROETHYLENE SEAL |
| Material | STEEL COMP E52100 OUTER RING |
| Material | STEEL COMP E52100 INNER RING |
| Lubrication Material Document and Classification | A3165 MFR REF SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.4950 INCHES MINIMUM AND 0.5000 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 |
|---|---|
| 704A33-651-094 | Airbus Helicopters (ets De Marignane) (FRA) |
| KP16A-A3165 | Airbus Helicopters (ets De Marignane) (FRA) |
| Reference | Meaning |
|---|---|
| KP16A A3165 | 3/9 Design control — primary reference Timken Co Div the Timken Company |
NSN 3110-01-271-4790 is a Bearing,ball,airframe, manufactured by Airbus Helicopters (ets De Marignane), classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-271-4790 has 2 manufacturer part numbers on file: 704A33-651-094 (Airbus Helicopters (ets De Marignane)), KP16A-A3165 (Airbus Helicopters (ets De Marignane)).
Key specifications for 704A33-651-094: Bearing Seal Type: CONTACT; Lubrication Material: LUBRICANT; Outer Ring Width: 0.4325 INCHES MINIMUM AND 0.4375 INCHES MAXIMUM IN; Internal Clearance: 0.0004 INCHES MINIMUM RADIAL AND 0.0010 INCHES MAXIMUM RADIAL IN. 25 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.