The Bearing Unit,roller, cataloged under National Stock Number 3130-01-233-9837, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. Government technical data includes 30 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-01-233-9837 |
| Primary Part Number | SYR212 |
| Item Name | Bearing Unit,roller |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Seal Type | LABYRINTH |
| Lubrication Material | GREASE |
| Lubrication Fitting Type | HYDRAULIC |
| Assembly Overall Length | 3.688 INCHES NOMINAL IN |
| Housing Height | 6.438 INCHES NOMINAL IN |
| Mounting Slot Length | 1.063 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Mounting Hole Type | SLOTTEDSLOTTED |
| Rotating Element Locking Method | SETSCREW LOCKING COLLAR |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Style Designator | PILLOW BLOCK, SOLID |
| Collar Location | BOTH ENDS |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Center to Center Distance Between Mounting Holes Along Width | 8.125 INCHES NOMINAL IN |
| Specification/standard Data | 81755-C12063 MANUFACTURERS SPECIFICATION CONTROL |
| Housing Width | 10.438 INCHES NOMINAL IN |
| Base Length | 2.563 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 2 |
| Shaft End Type | OPEN |
| Base Thickness | 2.250 INCHES NOMINAL IN |
| Bore Diameter | 2.7501 INCHES MINIMUM AND 2.7507 INCHES MAXIMUM IN |
| Material | RUBBER SYNTHETIC AND STEEL SEAL |
| Material | IRON CAST HOUSING |
| Material | STEEL BEARING |
| Material | STEEL COLLAR |
| Height From Bottom of Base to Bore Centerline | 3.250 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 30.0 DEGREES NOMINAL |
| Load Capability Type | RADIAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 3130-01-233-9837 is a Bearing Unit,roller, manufactured by Skf Usa Inc., classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-233-9837 has 2 manufacturer part numbers on file: SYR212 (Skf Usa Inc.), SYR 2-3/4 (Skf Usa Inc.).
Key specifications for SYR212: Seal Type: LABYRINTH; Lubrication Material: GREASE; Lubrication Fitting Type: HYDRAULIC; Assembly Overall Length: 3.688 INCHES NOMINAL IN. 30 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.