PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21-246Bearing,sleeve

Dresser Industries Inc Leroi Div · NSN 3120-00-371-6390 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-371-6390 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-371-6390. Primary manufacturer part number: 21-246.
Features
  • Bearing,sleeve — FSC 3120
  • 1 verified cross-reference
  • Primary manufacturer: Dresser Industries Inc Leroi Div
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-371-6390, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Dresser Industries Inc Leroi Div. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameBearing,sleeve
FSC / FSG3120 — No Item Name Available (FSG 31)
ManufacturersDresser Industries Inc Leroi Div (CAGE 35301)
Technical Specifications
ParameterValue
NSN3120-00-371-6390
Primary Part Number21-246
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerDresser Industries Inc Leroi Div
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
3120-00-050-771021246 INTERCHANGEABLE
Bushing,sleeve
L3harris Technologies, Inc. Div Space and Airborne Systems
3110-00-142-438609195 INTERCHANGEABLE
Cup,tapered Roller Bearing
The Timken Corporation
3110-00-156-4160201KTT3FS381A INTERCHANGEABLE
Bearing,ball,annular
Timken Co Div the Timken Company
5110-00-260-1644 INTERCHANGEABLE
Reamer,hand
5940-00-502-6457304-2720-00 INTERCHANGEABLE
Terminal,lug
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
3110-00-507-0021M591 INTERCHANGEABLE
Bearing,roller,needle
Timken Aerospace, Inc Dba Torrington Product
5360-01-178-1425 INTERCHANGEABLE
Spring
6515-01-476-225441204 INTERCHANGEABLE
Shield,face,surgical
Kimberly-Clark Corporation Dba Kimberly-Clark
1680-01-488-744421246 INTERCHANGEABLE
Mounting Flange
Parker Hannifin Corporation Div Hydraulic Systems Division
5975-01-629-649321246 INTERCHANGEABLE
Mounting Base,tie Down,electrica
Waytek Inc
Cross-Reference Index
Part NumberManufacturer
21-246 PRIMARY Dresser Industries Inc Leroi Div (USA)
Related Parts
3120-00-050-7710INTERCHANGEABLE
BUSHING,SLEEVE
21246
3110-00-142-4386INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
09195
3110-00-156-4160INTERCHANGEABLE
BEARING,BALL,ANNULAR
201KTT3FS381A
5110-00-260-1644INTERCHANGEABLE
REAMER,HAND
5940-00-502-6457INTERCHANGEABLE
TERMINAL,LUG
304-2720-00
3110-00-507-0021INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
M591
5360-01-178-1425INTERCHANGEABLE
SPRING
6515-01-476-2254INTERCHANGEABLE
SHIELD,FACE,SURGICAL
41204
1680-01-488-7444INTERCHANGEABLE
MOUNTING FLANGE
21246
5975-01-629-6493INTERCHANGEABLE
MOUNTING BASE,TIE DOWN,ELECTRICA
21246

Frequently Asked Questions

What is NSN 3120-00-371-6390?

NSN 3120-00-371-6390 is a Bearing,sleeve, manufactured by Dresser Industries Inc Leroi Div, classified under FSC 3120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 3120-00-371-6390?

NSN 3120-00-371-6390 has 1 cross-referenced part number: 21-246 (Dresser Industries Inc Leroi Div).

What NSN replaces 3120-00-371-6390?

There are 10 known substitutes for 3120-00-371-6390: 3120-00-050-7710, 3110-00-142-4386, 3110-00-156-4160 and 7 more. Verify interchangeability with system specifications before substitution.

Is NSN 3120-00-371-6390 still in active supply?

NSN 3120-00-371-6390 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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