The Cam Follower,needle Bearing, cataloged under National Stock Number 3110-01-290-3816, 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 19 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3110-01-290-3816 |
| Primary Part Number | CR-1-1 4-XBCK |
| 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 | 0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN |
| Thread Length | 0.6250 INCHES NOMINAL IN |
| Style Designator | CAM FOLLOWER |
| Overall Outside Diameter | 1.2490 INCHES MINIMUM AND 1.2500 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.5000 INCHES IN |
| Stud Length | 1.2500 INCHES NOMINAL IN |
| Surface Treatment | OXIDE ALL EXTERNAL/EXPOSED METAL SURFACES |
| Seal Quantity | 2 |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OUTER RING |
| Material | STEEL STUD |
| Material | STEEL END PLATE |
| Material | STEEL ROLLER |
| Material | PLASTIC POLYAMIDE NYLON SEAL |
| Thread Series Designator | UNF |
| Stud Diameter | 0.4990 INCHES MINIMUM AND 0.5000 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-1-1 4-XBCK PRIMARY | Accurate Bushing Company, Inc. (USA) |
| Reference | Meaning |
|---|---|
| CCF-1 1/4-SB | 3/2 Design control — primary reference U.S. Government activity |
| 2274C33H01 | 5/9 Secondary reference Westinghouse Electric Corp Power Generation-Generator Div |
| CCF-1 1/4-SB | 3/9 Design control — primary reference Mcgill Manufacturing Company Inc Use CAGE Code 92563 for Cataloging. |
NSN 3110-01-290-3816 is a Cam Follower,needle Bearing, manufactured by Accurate Bushing Company, Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-290-3816 has 1 manufacturer part number on file: CR-1-1 4-XBCK (Accurate Bushing Company, Inc.).
1 possible match (shared part number, not a government interchangeability claim): 3130-01-451-3578. Verify interchangeability with system specifications before substitution.
Key specifications for CR-1-1 4-XBCK: Bearing Seal Type: CONTACT; Outer Ring Width: 0.7450 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN; Thread Length: 0.6250 INCHES NOMINAL IN; Style Designator: CAM FOLLOWER. 19 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.