The Bearing Unit,ball, cataloged under National Stock Number 3130-01-174-5061, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Timken Co Div the Timken Company. 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-174-5061 |
| Primary Part Number | RAO1 3/16 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Timken Co Div the Timken Company |
| Status | ACTIVE |
| Seal Type | CONTACT |
| Lubrication Fitting Type | PIPE PLUG |
| Assembly Overall Length | 2.2500 INCHES NOMINAL IN |
| Housing Height | 3.6875 INCHES NOMINAL IN |
| Mounting Slot Length | 0.7500 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 | 5.3750 INCHES NOMINAL IN |
| Housing Width | 6.8125 INCHES NOMINAL IN |
| Base Length | 1.9375 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 1 |
| Shaft End Type | OPEN |
| Base Thickness | 0.8750 INCHES NOMINAL IN |
| Bore Diameter | 1.1875 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC SEAL |
| Material | IRON CAST HOUSING |
| Material | STEEL BEARING |
| Height From Bottom of Base to Bore Centerline | 1.8750 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 90.0 DEGREES NOMINAL |
| Load Capability Type | RADIAL |
| Mounting Slot Width | 0.6250 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 |
|---|---|
| RAO1 3/16 PRIMARY | Timken Co Div the Timken Company (USA) |
NSN 3130-01-174-5061 is a Bearing Unit,ball, manufactured by Timken Co Div the Timken Company, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-174-5061 has 1 manufacturer part number on file: RAO1 3/16 (Timken Co Div the Timken Company).
Key specifications for RAO1 3/16: Seal Type: CONTACT; Lubrication Fitting Type: PIPE PLUG; Assembly Overall Length: 2.2500 INCHES NOMINAL IN; Housing Height: 3.6875 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.