The Cam Follower,needle Bearing, cataloged under National Stock Number 3110-01-281-3445, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Accurate Bushing Company, Inc.. Government technical data includes 18 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 | 3110-01-281-3445 |
| Primary Part Number | CR-3 1/2-XB |
| Item Name | Cam Follower,needle Bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Accurate Bushing Company, Inc. |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Outer Ring Width | 1.9950 INCHES MINIMUM AND 2.0000 INCHES MAXIMUM IN |
| Thread Length | 1.3750 INCHES NOMINAL IN |
| Style Designator | CAM FOLLOWER |
| Overall Outside Diameter | 3.4990 INCHES MINIMUM AND 3.5000 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.375 INCHES IN |
| Stud Length | 2.7500 INCHES NOMINAL IN |
| Surface Treatment | OXIDE ALL EXTERNAL/EXPOSED METAL SURFACES |
| Seal Quantity | 2 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 12 |
| Material | STEEL OUTER RING |
| Material | STEEL INNER RING |
| Material | STEEL ROLLER |
| Material | PLASTIC ACETAL SEAL |
| Thread Series Designator | UNF |
| Stud Diameter | 1.3750 INCHES MINIMUM AND 1.3760 INCHES MAXIMUM 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 |
|---|---|
| CR-3 1/2-XB PRIMARY | Accurate Bushing Company, Inc. (USA) |
NSN 3110-01-281-3445 is a Cam Follower,needle Bearing, manufactured by Accurate Bushing Company, Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-281-3445 has 1 manufacturer part number on file: CR-3 1/2-XB (Accurate Bushing Company, Inc.).
Key specifications for CR-3 1/2-XB: Bearing Seal Type: CONTACT; Outer Ring Width: 1.9950 INCHES MINIMUM AND 2.0000 INCHES MAXIMUM IN; Thread Length: 1.3750 INCHES NOMINAL IN; Style Designator: CAM FOLLOWER. 18 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.