NSN 3110-01-126-4783 · NIIN 011264783 · Part number 309D
Skf Usa Inc. · FSC 3110 — Bearings, Antifriction, Unmounted · FSG 31 — Bearings · CAGE 52676
Government record, cited
NSN 3110-01-126-4783 — this item is cataloged by the U.S. Government under National Stock Number 3110-01-126-4783. Manufacturer of record part number: 309D.
Style Designator: NON-LOADING GROOVE, NON-SEPARABLE, TANDEM MOUNTING
Overall Outside Diameter: 100.00 MILLIMETERS NOMINAL MM
Load Direction: RADIAL
Standard Tolerance Designation: ABEC NO.1
Bore Diameter: 45.00 MILLIMETERS NOMINAL MM
Identification
NSN: 3110-01-126-4783
NIIN: 011264783
FSC: 3110 — Bearings, Antifriction, Unmounted
FSG: 31 — Bearings
Primary part number: 309D
Manufacturer: Skf Usa Inc.
General Description
The Bearing,ball,duplex, cataloged under National Stock Number 3110-01-126-4783, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Skf Usa Inc.. Government technical data includes 8 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 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3110-01-126-4783
Primary Part Number
309D
Item Name
Bearing,ball,duplex
FSC / FSG
3110 / 31 — Bearings, Antifriction, Unmounted
Manufacturer
Skf Usa Inc.
Status
ACTIVE
Retainer Fabrication Method
PRESSED
Surface Finish
GROUND
Style Designator
NON-LOADING GROOVE, NON-SEPARABLE, TANDEM MOUNTING
Overall Outside Diameter
100.00 MILLIMETERS NOMINAL MM
Load Direction
RADIAL
Standard Tolerance Designation
ABEC NO.1
Bore Diameter
45.00 MILLIMETERS NOMINAL MM
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
⇄Related Items3
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
NSN 3110-01-126-4783 is a Bearing,ball,duplex, manufactured by Skf Usa Inc., classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What part numbers are listed for NSN 3110-01-126-4783?
NSN 3110-01-126-4783 has 2 manufacturer part numbers on file: 309RDU (Skf Usa Inc.), 309D (Skf Usa Inc.).
What NSN replaces 3110-01-126-4783?
3 possible matches (shared part number, not a government interchangeability claim): 4330-01-342-6833, 4730-01-342-8691, 4330-01-343-0603. Verify interchangeability with system specifications before substitution.
What are the specifications of 309D?
Key specifications for 309D: Retainer Fabrication Method: PRESSED; Surface Finish: GROUND; Style Designator: NON-LOADING GROOVE, NON-SEPARABLE, TANDEM MOUNTING; Overall Width: 50.00 MILLIMETERS NOMINAL MM. 8 specifications are documented in the U.S. Government catalog.
Is NSN 3110-01-126-4783 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.