NSN 3110-00-409-9931 — this item is cataloged by the U.S. Government under National Stock Number 3110-00-409-9931. Manufacturer of record part number: MR5311EL.
Style Designator: SINGLE ROW, ONE-DIRECTION LOCATING, ONE LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
Overall Outside Diameter: 120.0 MILLIMETERS NOMINAL MM
Bore Shape: STRAIGHT
Identification
NSN: 3110-00-409-9931
NIIN: 004099931
FSC: 3110 — Bearings, Antifriction, Unmounted
FSG: 31 — Bearings
Primary part number: MR5311EL
Manufacturer: Federal-Mogul Corp Government Sales Dept
General Description
The Bearing,roller,cylindrical, cataloged under National Stock Number 3110-00-409-9931, is classified within Federal Supply Class 3110 (Bearings, Antifriction, Unmounted) of the Bearings group. The manufacturer of record is Federal-Mogul Corp Government Sales Dept. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
3110-00-409-9931
Primary Part Number
MR5311EL
Item Name
Bearing,roller,cylindrical
FSC / FSG
3110 / 31 — Bearings, Antifriction, Unmounted
Manufacturer
Federal-Mogul Corp Government Sales Dept
Status
ACTIVE
Retainer Fabrication Method
PRESSED
Internal Fit-Up Designation
STANDARD
Locating Feature
ONE DIRECTION
Surface Finish
GROUND
Style Designator
SINGLE ROW, ONE-DIRECTION LOCATING, ONE LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
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 3110-00-409-9931?
NSN 3110-00-409-9931 is a Bearing,roller,cylindrical, manufactured by Federal-Mogul Corp Government Sales Dept, classified under FSC 3110, Bearings, Antifriction, Unmounted. Status: active.
What part numbers are listed for NSN 3110-00-409-9931?
NSN 3110-00-409-9931 has 2 manufacturer part numbers on file: MR5311EL (Federal-Mogul Corp Government Sales Dept), 156878H1 (Komatsu America Corp.).
What are the specifications of MR5311EL?
Key specifications for MR5311EL: Retainer Fabrication Method: PRESSED; Internal Fit-Up Designation: STANDARD; Locating Feature: ONE DIRECTION; Surface Finish: GROUND. 10 specifications are documented in the U.S. Government catalog.
Is NSN 3110-00-409-9931 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.