The Bearing Unit,roller, cataloged under National Stock Number 3130-00-153-8701, 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 28 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-00-153-8701 |
| Primary Part Number | ZA2307 |
| 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 | 4.3750 INCHES NOMINAL IN |
| Housing Height | 7.3750 INCHES NOMINAL IN |
| Mounting Slot Length | 1.6250 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Mounting Hole Type | SLOTTED |
| Rotating Element Locking Method | DIRECT |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Style Designator | PILLOW BLOCK, SOLID |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Center to Center Distance Between Mounting Holes Along Width | 10.0000 INCHES NOMINAL IN |
| Housing Width | 13.1875 INCHES NOMINAL IN |
| Base Length | 3.4375 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 2 |
| Shaft End Type | OPEN |
| Base Thickness | 1.8750 INCHES NOMINAL IN |
| Bore Diameter | 3.4375 INCHES NOMINAL IN |
| Material | STEEL BEARING SURFACE |
| Material | IRON CAST HOUSING |
| Material | STEEL SEAL |
| Height From Bottom of Base to Bore Centerline | 3.7500 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 30.0 DEGREES NOMINAL |
| Load Capability Type | RADIAL |
| Mounting Slot Width | 0.8750 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 |
|---|---|
| ZA2307 PRIMARY | Rexnord Industries, Llc Div Aerosspace Bearing Operation (USA) |
| Reference | Meaning |
|---|---|
| ZA307 | 5/9 Secondary reference Rexnord Industries, Llc Div Aerosspace Bearing Operation |
NSN 3130-00-153-8701 is a Bearing Unit,roller, manufactured by Rexnord Industries, Llc Div Aerosspace Bearing Operation, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-00-153-8701 has 1 manufacturer part number on file: ZA2307 (Rexnord Industries, Llc Div Aerosspace Bearing Operation).
Key specifications for ZA2307: Seal Type: LABYRINTH; Lubrication Material: GREASE; Lubrication Fitting Type: HYDRAULIC; Assembly Overall Length: 4.3750 INCHES NOMINAL IN. 28 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.