The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-178-6040, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Schatz Bearing Corporation Dba Schatz Bearing Corp. Government technical data includes 17 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-178-6040 |
| Primary Part Number | BACB10A537 |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Schatz Bearing Corporation Dba Schatz Bearing Corp |
| Status | ACTIVE |
| Outer Ring Width | 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Internal Clearance | 0.0010 INCHES MINIMUM RADIAL AND 0.0020 INCHES MAXIMUM RADIAL IN |
| Shield Quantity | 2 |
| Style Designator | SINGLE ROW INNER RING EXTENDED BOTH SIDES |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OUTER RING |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE BALL |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE INNER RING |
| Overall Outside Diameter | 1.0615 INCHES MINIMUM AND 1.0625 INCHES MAXIMUM IN |
| Load Direction | RADIAL |
| Alignment Type | RIGID |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS |
| Bore Diameter | 0.6243 INCHES MINIMUM AND 0.6257 INCHES MAXIMUM IN |
| Material | STEEL COMP 440C INNER RING |
| Material | STEEL COMP 440C OUTER RING |
| Material | STEEL COMP 440C BALL |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE AND GLASS FIBER SHIELD |
| Inner Ring Width | 0.2760 INCHES MINIMUM AND 0.2810 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 |
|---|---|
| BACB10A537 PRIMARY | Schatz Bearing Corporation Dba Schatz Bearing Corp (USA) |
| BACB10A537 PRIMARY | Mpb Corp Div Timken Super Precision (USA) |
| BACB10A537 PRIMARY | Rbc Aircraft Products, Inc. (USA) |
| Reference | Meaning |
|---|---|
| B538ZZ ST10 | 5/9 Secondary reference Skf Usa Inc. |
| BACB10A537 | 1/2 Source control — Government-approved source U.S. Government activity |
| A538DDE8510 | 5/9 Secondary reference Timken Co Div the Timken Company |
| BACB10A537 | 5/9 Secondary reference Timken Co Div the Timken Company |
| A538DDE8510 | 5/1 Secondary reference Rbc Aircraft Products, Inc. |
NSN 3110-01-178-6040 is a Bearing,ball,airframe, manufactured by Schatz Bearing Corporation Dba Schatz Bearing Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-178-6040 has 3 manufacturer part numbers on file: BACB10A537 (Schatz Bearing Corporation Dba Schatz Bearing Corp), BACB10A537 (Mpb Corp Div Timken Super Precision), BACB10A537 (Rbc Aircraft Products, Inc.).
Key specifications for BACB10A537: Outer Ring Width: 0.2450 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN; Internal Clearance: 0.0010 INCHES MINIMUM RADIAL AND 0.0020 INCHES MAXIMUM RADIAL IN; Shield Quantity: 2; Style Designator: SINGLE ROW INNER RING EXTENDED BOTH SIDES. 17 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.