The Ring,bearing,inner, cataloged under National Stock Number 3110-00-765-2383, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-00-765-2383 |
| Primary Part Number | 452 581-IRA |
| Item Name | Ring,bearing,inner |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Skf Usa Inc. |
| Status | ACTIVE |
| Surface Finish | GROUND |
| Style Designator | INNER RING, ROLLER, CYLINDRICAL |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Overall Outside Diameter | 3.8563 INCHES MINIMUM AND 3.8568 INCHES MAXIMUM IN |
| Bore Shape | STRAIGHT |
| Bore Diameter | 3.4995 INCHES MINIMUM AND 3.5000 INCHES MAXIMUM IN |
| Material | STEEL COMP E52100 OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | F |
| Part Number | Manufacturer |
|---|---|
| 452 581-IRA PRIMARY | Skf Usa Inc. (USA) |
| XLR3 1/2E1J PRIMARY | Skf Usa Inc. (USA) |
| E-1918-AR3305-60 PRIMARY | Regal Beloit America, Inc. Dba Rollway Bearing (USA) |
| Reference | Meaning |
|---|---|
| E-1918-UHAR3305 | D/9 Drawing number reference only Regal Beloit America, Inc. Dba Rollway Bearing |
| 452581 | D/9 Drawing number reference only Skf Usa Inc. |
| MI-831-RW | 3/2 Design control — primary reference U.S. Government activity |
| 204-040-270-005 | 5/2 Secondary reference U.S. Government activity |
| 204-040-270-5 | 1/2 Source control — Government-approved source U.S. Government activity |
| D2-35849 | D/9 Drawing number reference only Skf Usa Inc. |
NSN 3110-00-765-2383 is a Ring,bearing,inner, manufactured by Skf Usa Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-00-765-2383 has 3 manufacturer part numbers on file: 452 581-IRA (Skf Usa Inc.), XLR3 1/2E1J (Skf Usa Inc.), E-1918-AR3305-60 (Regal Beloit America, Inc. Dba Rollway Bearing).
Key specifications for 452 581-IRA: Surface Finish: GROUND; Style Designator: INNER RING, ROLLER, CYLINDRICAL; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Overall Width: 0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN. 7 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.