The Bearing Unit,ball, cataloged under National Stock Number 3130-01-227-0663, is classified within Federal Supply Class 3130 (Bearings, Mounted) of the Bearings group. The manufacturer of record is Reliance Electric Company Dba Reliance & Dodge Brands. Government technical data includes 28 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3130-01-227-0663 |
| Primary Part Number | 12313690 |
| Item Name | Bearing Unit,ball |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Reliance Electric Company Dba Reliance & Dodge Brands |
| Status | ACTIVE |
| Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Lubrication Fitting Type | HYDRAULIC |
| Assembly Overall Length | 1.340 INCHES NOMINAL IN |
| Housing Height | 2.500 INCHES NOMINAL IN |
| Mounting Slot Length | 0.780 INCHES NOMINAL IN |
| Internal Fit-Up Designation | STANDARD |
| Mounting Hole Type | SLOTTED |
| Rotating Element Locking Method | STRAIGHT SLEEVE |
| Seal Location | BOTH ENDS |
| Block Type | FIXED |
| Style Designator | PILLOW BLOCK, SOLID |
| Center to Center Distance Between Mounting Holes Along Width | 3.780 INCHES NOMINAL IN |
| Housing Width | 5.000 INCHES NOMINAL IN |
| Base Length | 1.340 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 2 |
| Shaft End Type | OPEN |
| Base Thickness | 0.470 INCHES NOMINAL IN |
| Bore Diameter | 0.7500 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC SEAL |
| Material | IRON CAST HOUSING |
| Material | STEEL BEARING |
| Height From Bottom of Base to Bore Centerline | 1.250 INCHES NOMINAL IN |
| Lubrication Material Document and Classification | MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE |
| Lubrication Fitting Angle From Horizontal Centerline | 45.0 DEGREES NOMINAL |
| Load Capability Type | RADIAL |
| Mounting Slot Width | 0.440 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 |
|---|---|
| 12313690 PRIMARY | Reliance Electric Company Dba Reliance & Dodge Brands (USA) |
| 12313690 PRIMARY | Timken Co Div the Timken Company (USA) |
| 12313690 | U S Army Tank Automotive Command Amsta-Im-Mm (USA) |
| 12313690 PRIMARY | Skf Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| SYH12WMX | 5/9 Secondary reference Skf Usa Inc. |
| SYH3/4WMX | 5/9 Secondary reference Skf Usa Inc. |
| 1263-00-D FIND NO 2 | 5/9 Secondary reference Engineered Coil Company Dba Engineered Coil Co Div Drs Marlo Coil |
| 12313690 | 5/9 Secondary reference Rexnord Industries, Llc Div Link-Belt Bearing Operation |
| SYH3/4WMU | 5/9 Secondary reference Skf Usa Inc. |
| RAK3/4 A2485 | 5/1 Secondary reference Timken Co Div the Timken Company |
| P2BL 012-WF | 5/1 Secondary reference Skf Usa Inc. |
NSN 3130-01-227-0663 is a Bearing Unit,ball, manufactured by Reliance Electric Company Dba Reliance & Dodge Brands, classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-227-0663 has 4 manufacturer part numbers on file: 12313690 (Reliance Electric Company Dba Reliance & Dodge Brands), 12313690 (Timken Co Div the Timken Company), 12313690 (U S Army Tank Automotive Command Amsta-Im-Mm), 12313690 (Skf Usa Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3110-01-602-1888. Verify interchangeability with system specifications before substitution.
Key specifications for 12313690: Seal Type: CONTACT; Lubrication Material: GREASE; Lubrication Fitting Type: HYDRAULIC; Assembly Overall Length: 1.340 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.