The Cam Follower,needle Bearing, cataloged under National Stock Number 3110-01-339-5057, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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 | 3110-01-339-5057 |
| Item Name | Cam Follower,needle Bearing |
| FSC / FSG | 3110 / 31 — Bearings, Antifriction, Unmounted |
| Status | ACTIVE |
| Bearing Seal Type | CONTACT |
| Lubrication Material | GREASE |
| Outer Ring Width | 1.4950 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN |
| Thread Length | 1.1250 INCHES NOMINAL IN |
| Style Designator | CAM FOLLOWER |
| Overall Outside Diameter | 2.4990 INCHES MINIMUM AND 2.5000 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 1.250 INCHES IN |
| Stud Length | 2.2500 INCHES NOMINAL IN |
| Seal Quantity | 2 |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 12 |
| Thread Series Designator | UNF |
| Stud Diameter | 1.2500 INCHES MINIMUM AND 1.2510 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 |
| Reference | Meaning |
|---|---|
| 340105 | 5/9 Secondary reference U.S. Government activity |
| CCFHL-21/2SB-1 | 3/2 Design control — primary reference U.S. Government activity |
| CCFH2-1/2SB1 | 5/9 Secondary reference U.S. Government activity |
NSN 3110-01-339-5057 is a Cam Follower,needle Bearing, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
1 possible match (shared part number, not a government interchangeability claim): 1660-01-633-6179. Verify interchangeability with system specifications before substitution.
Key specifications for 3110-01-339-5057: Bearing Seal Type: CONTACT; Lubrication Material: GREASE; Outer Ring Width: 1.4950 INCHES MINIMUM AND 1.5000 INCHES MAXIMUM IN; Thread Length: 1.1250 INCHES NOMINAL IN. 14 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.