The Bearing,ball,airframe, cataloged under National Stock Number 3110-01-265-0576, 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 20 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-265-0576 |
| Primary Part Number | MDW4K-H |
| Item Name | Bearing,ball,airframe |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Schatz Bearing Corporation Dba Schatz Bearing Corp |
| Status | ACTIVE |
| Retainer Fabrication Method | PRESSED |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Outer Ring Width | 0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Internal Clearance | 0.0005 INCHES MAXIMUM RADIAL IN |
| Style Designator | DOUBLE ROW |
| Material Document and Classification | AMS 3666 ASSN STD SINGLE MATERIAL RESPONSE SEAL |
| Overall Outside Diameter | 0.7496 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Load Direction | ANGULAR |
| Surface Treatment | CADMIUM ALL EXTERNAL/EXPOSED METAL SURFACES |
| Seal Quantity | 2 |
| Bore Diameter | 0.2497 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 BALL |
| Material | PLASTIC POLYTETRAFLUOROETHYLENE SEAL |
| Material | STEEL CORROSION RESISTING RETAINER |
| Material | STEEL COMP E52100 OUTER RING |
| Material | STEEL COMP E52100 INNER RING |
| Material | STEEL CORROSION RESISTING SNAP RING |
| Lubrication Material Document and Classification | MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE |
| Inner Ring Width | 0.8725 INCHES MINIMUM AND 0.8750 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL Q — CCL Item — Commerce Control List |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| MDW4K-H PRIMARY | Schatz Bearing Corporation Dba Schatz Bearing Corp (USA) |
| Reference | Meaning |
|---|---|
| MDW4K | 3/2 Design control — primary reference U.S. Government activity |
| MDW4K-400 | 5/9 Secondary reference Skf Usa Inc. |
NSN 3110-01-265-0576 is a Bearing,ball,airframe, manufactured by Schatz Bearing Corporation Dba Schatz Bearing Corp, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-265-0576 has 1 manufacturer part number on file: MDW4K-H (Schatz Bearing Corporation Dba Schatz Bearing Corp).
Key specifications for MDW4K-H: Retainer Fabrication Method: PRESSED; Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN. 20 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.
NSN 3110-01-265-0576 has DEMIL Code Q. Demilitarization may be required before disposal or transfer to non-military entities.
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.