Ring, Bearing, Inner3110-01-143-4124

NSN 3110-01-143-4124 · NIIN 011434124

FSC 3110 — Bearings, Antifriction, Unmounted · FSG 31 — Bearings

Government record, cited

Also searched as 3110-01-143-4124 · 3110011434124 · NIIN 011434124 · 01-143-4124 · FSC 3110 Bearings, Antifriction, Unmounted · IR-354428 · MA708 · MI-35

Nearby stock numbers ← 3110-01-143-3399 Bearing, Ball, Annular · 3110-01-143-4125 Bearing, Roller, Needle →

3110-01-143-4124 — Bearings, Antifriction, Unmounted

Features

Ring,bearing,inner — FSC 3110
Surface Finish: GROUND
Style Designator: SOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
Overall Outside Diameter: 2.7500 INCHES NOMINAL IN
Bore Shape: STRAIGHT
Standard Tolerance Designation: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
Bore Diameter: 2.1875 INCHES NOMINAL IN
Material: STEEL OVERALL

Identification

NSN: 3110-01-143-4124
NIIN: 011434124
FSC: 3110 — Bearings, Antifriction, Unmounted
FSG: 31 — Bearings

General Description

The Ring,bearing,inner, cataloged under National Stock Number 3110-01-143-4124, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	3110-01-143-4124
Item Name	Ring,bearing,inner
FSC / FSG	3110 / 31 — Bearings, Antifriction, Unmounted
Status	ACTIVE
Surface Finish	GROUND
Style Designator	SOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE
Overall Outside Diameter	2.7500 INCHES NOMINAL IN
Bore Shape	STRAIGHT
Standard Tolerance Designation	AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
Bore Diameter	2.1875 INCHES NOMINAL IN
Material	STEEL OVERALL

Lifecycle & Compliance

Acquisition Status	ACTIVE
DEMIL Code	DEMIL A — No Demilitarization Required
Hazard	No hazard code in the DLA record (HMIC N)
Criticality Code	X

Cross-Reference Index

No manufacturer part numbers on file in the U.S. Government catalog.

Reference documents

Reference	Meaning
IR-354428	5/9 Secondary reference Timken Aerospace, Inc Dba Torrington Product
MA708	5/9 Secondary reference Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
MI-35	3/2 Design control — primary reference U.S. Government activity

No interchangeability data on file.

Other items in FSC 3110 — Bearings, Antifriction, Unmounted

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

3110-00-001-1937

BEARING,ROLLER,NEEDLE

3110-00-001-1937

BEARING,ROLLER,NEEDLE

3110-00-001-1937

BEARING,ROLLER,NEEDLE

3110-00-001-1938

BEARING,BALL,AIRFRAME

3110-00-001-4661

CONE AND ROLLERS,TAPERED ROLLER

3110-00-001-4662

CUP,TAPERED ROLLER BEARING

3110-00-001-4689

BEARING,BALL,ANNULAR

3110-00-001-4722

BEARING,BALL,ANNULAR

Frequently Asked Questions

What is NSN 3110-01-143-4124?

NSN 3110-01-143-4124 is a Ring,bearing,inner, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.

What are the specifications of 3110-01-143-4124?

Key specifications for 3110-01-143-4124: Surface Finish: GROUND; Style Designator: SOLID INNER RACE, WITH BORE CHAMFER, JOURNAL AND NEEDLE; Overall Width: 1.7500 INCHES NOMINAL IN; Overall Outside Diameter: 2.7500 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.

Is NSN 3110-01-143-4124 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.

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