The Bearing Unit,roller, cataloged under National Stock Number 3130-01-077-5732, 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 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 3130-01-077-5732 |
| Primary Part Number | SYR203-12 |
| Item Name | Bearing Unit,roller |
| FSC / FSG | 3130 / 31 — Bearings, Mounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Seal Type | SELF-ALIGNING |
| Lubrication Material | GREASE |
| Temp Rating | -40.0 FAHRENHEIT AND 150.0 FAHRENHEIT DEGF |
| Lubrication Fitting Type | CUP |
| Assembly Overall Length | 3.1250 INCHES NOMINAL IN |
| Housing Height | 5.0000 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 |
| Material Document and Classification | AMS 5630 ASSN STD SINGLE MATERIAL RESPONSE ROLLER |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE RACE |
| Collar Location | ONE END |
| Features Provided | GROUND ROLLING ELEMENT GROOVE |
| Center to Center Distance Between Mounting Holes Along Width | 7.0000 INCHES NOMINAL IN |
| Housing Width | 8.8800 INCHES NOMINAL IN |
| Base Length | 2.3200 INCHES NOMINAL IN |
| Alignment Type | SELF-ALIGNING |
| Rolling Element Groove Quantity | 2 |
| Shaft End Type | OPEN |
| Base Thickness | 1.6200 INCHES NOMINAL IN |
| Bore Diameter | 2.1880 INCHES NOMINAL IN |
| Material | STEEL COMP 440C ROLLER |
| Material | STEEL COMP E52100 RACE |
| Housing Length | 2.3200 INCHES NOMINAL IN |
| Height From Bottom of Base to Bore Centerline | 2.5000 INCHES NOMINAL IN |
| Lubrication Fitting Angle From Horizontal Centerline | 45.0 DEGREES NOMINAL |
| Load Capability Type | RADIAL AND THRUST |
| 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 |
|---|---|
| SYR203-12 PRIMARY | Skf Usa Inc. (USA) |
| Reference | Meaning |
|---|---|
| SM-A-949317-101 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 3130-01-077-5732 is a Bearing Unit,roller, manufactured by Skf Usa Inc., classified under FSC 3130, Bearings, Mounted. Status: active.
NSN 3130-01-077-5732 has 1 manufacturer part number on file: SYR203-12 (Skf Usa Inc.).
Key specifications for SYR203-12: Seal Type: SELF-ALIGNING; Lubrication Material: GREASE; Temp Rating: -40.0 FAHRENHEIT AND 150.0 FAHRENHEIT DEGF; Lubrication Fitting Type: CUP. 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.