The Cam Follower,needle Bearing, cataloged under National Stock Number 3110-01-288-2138, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Rbc Bearings Incorporated Div West Trenton Division. Government technical data includes 21 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 3110-01-288-2138 |
| Primary Part Number | H28LW |
| Item Name | Cam Follower,needle Bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Manufacturer | Rbc Bearings Incorporated Div West Trenton Division |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Outer Ring Width | 0.5000 INCHES NOMINAL IN |
| Thread Length | 0.3750 INCHES NOMINAL IN |
| Style Designator | CAM FOLLOWER |
| Overall Outside Diameter | 0.8750 INCHES NOMINAL IN |
| Features Provided | LUBRICATION HOLE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.438 INCHES IN |
| Stud Length | 0.8750 INCHES NOMINAL IN |
| Surface Treatment | OXIDE EXPOSED SURFACES AS MOUNTED |
| Seal Quantity | 2 |
| Thread Class | 2A A |
| Standard Tolerance Designation | AFBMA STD TOLERANCE FOR CAN FOLLWER NEEDLE BEARING |
| 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 | 0.4375 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 |
|---|---|
| H28LW PRIMARY | Rbc Bearings Incorporated Div West Trenton Division (USA) |
| CRHSB-14 | Timken Co Div the Timken Company (USA) |
| Reference | Meaning |
|---|---|
| CFH-7/8-SB | 5/2 Secondary reference U.S. Government activity |
| CFH-7-8-SB | 5/9 Secondary reference Mcgill Manufacturing Company Inc Use CAGE Code 92563 for Cataloging. |
| CRHSB-14 | 5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product |
NSN 3110-01-288-2138 is a Cam Follower,needle Bearing, manufactured by Rbc Bearings Incorporated Div West Trenton Division, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
NSN 3110-01-288-2138 has 2 manufacturer part numbers on file: H28LW (Rbc Bearings Incorporated Div West Trenton Division), CRHSB-14 (Timken Co Div the Timken Company).
Key specifications for H28LW: Bearing Seal Type: CONTACT; Outer Ring Width: 0.5000 INCHES NOMINAL IN; Thread Length: 0.3750 INCHES NOMINAL IN; Style Designator: CAM FOLLOWER. 21 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.