The Bearing Unit,roller, cataloged under National Stock Number 3130-01-101-4902, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Rexnord Industries, Llc Div Aerosspace Bearing Operation. Government technical data includes 29 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-01-101-4902 |
| Primary Part Number | ZA2107 |
| Item Name | Bearing Unit,roller |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Rexnord Industries, Llc Div Aerosspace Bearing Operation |
| Status | ACTIVE |
| Seal Type | LABYRINTH |
| Lubrication Material | GREASE |
| Lubrication Fitting Type | HYDRAULIC |
| Assembly Overall Length | 2.8750 INCHES NOMINAL IN |
| Housing Height | 3.6875 INCHES NOMINAL IN |
| Mounting Slot Length | 0.8125 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Mounting Hole Type | SLOTTED |
| Rotating Element Locking Method | SETSCREW LOCKING COLLAR |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Style Designator | PILLOW BLOCK, SOLID |
| Collar Location | ONE END |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Center to Center Distance Between Mounting Holes Along Width | 5.0000 INCHES NOMINAL IN |
| Housing Width | 6.5625 INCHES NOMINAL IN |
| Base Length | 2.1875 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 2 |
| Shaft End Type | OPEN |
| Base Thickness | 1.0000 INCHES NOMINAL IN |
| Bore Diameter | 1.4375 INCHES NOMINAL IN |
| Material | IRON MALLEABLE HOUSING |
| Material | STEEL ROLLER |
| Material | STEEL SEAL |
| Height From Bottom of Base to Bore Centerline | 1.8700 INCHES MINIMUM AND 1.8800 INCHES MAXIMUM IN |
| Lubrication Fitting Angle From Horizontal Centerline | 30.0 DEGREES NOMINAL |
| Load Capability Type | RADIAL AND THRUST |
| Mounting Slot Width | 0.5000 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 |
NSN 3130-01-101-4902 is a Bearing Unit,roller, manufactured by Rexnord Industries, Llc Div Aerosspace Bearing Operation, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-101-4902 has 2 manufacturer part numbers on file: ZA2107 (Rexnord Industries, Llc Div Aerosspace Bearing Operation), ZA107 (Universal Engineering Corp.).
Key specifications for ZA2107: Seal Type: LABYRINTH; Lubrication Material: GREASE; Lubrication Fitting Type: HYDRAULIC; Assembly Overall Length: 2.8750 INCHES NOMINAL IN. 29 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.