PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21146Bearing,sleeve

Itt Marlow a Unit of Itt Pumps and Compressors Div · NSN 3120-00-585-4522 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-585-4522 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-585-4522. Primary manufacturer part number: 21146.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE INSIDE LEFT CORNER
  • Material Document and Classification: ASTM B202,TYPE 1,CLASS A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Material: COPPER ALLOY OVERALL
  • Body Inside Diameter: 2.0035 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM IN
  • Hole Diameter: 0.3125 INCHES NOMINAL FIRST IN
  • Reference Number Differentiating Characteristics: AS DIFFERENTIATED BY INSIDE RIGHT CORNER CHAMFER ANGLE IN DEG AND SPECIAL FEATURES
  • Body Outside Diameter: 2.3775 INCHES MINIMUM AND 2.3790 INCHES MAXIMUM IN
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-585-4522, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Itt Marlow a Unit of Itt Pumps and Compressors Div. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-585-4522
Primary Part Number21146
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerItt Marlow a Unit of Itt Pumps and Compressors Div
StatusACTIVE
Corner ShapeSQUARE INSIDE LEFT CORNER
Material Document and ClassificationASTM B202,TYPE 1,CLASS A ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY OVERALL
Body Inside Diameter2.0035 INCHES MINIMUM AND 2.0050 INCHES MAXIMUM IN
Hole Diameter0.3125 INCHES NOMINAL FIRST IN
Reference Number Differentiating CharacteristicsAS DIFFERENTIATED BY INSIDE RIGHT CORNER CHAMFER ANGLE IN DEG AND SPECIAL FEATURES
Body Outside Diameter2.3775 INCHES MINIMUM AND 2.3790 INCHES MAXIMUM IN
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Corner ShapeCHAMFERED INSIDE RIGHT CORNER
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Antirotation/lubrication Type and Quantity1 HOLE
MaterialLUBRICANT LUBRICATION
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-421-94062A1-2MNPT100 INTERCHANGEABLE
Valve,safety Relief
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
3110-00-439-25794994913 INTERCHANGEABLE
Bearing,ball,annular
Kalmar AC Inc
6145-00-538-8426 INTERCHANGEABLE
Cable,special Purpose,electrical
5310-00-596-177621146 INTERCHANGEABLE
Washer,finishing
Raytheon Company Dba Raytheon
8030-00-664-7077 INTERCHANGEABLE
Filler,wood
4820-00-793-06472-1146 INTERCHANGEABLE
Control Assembly,vo
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
4730-00-995-3527102-0606C INTERCHANGEABLE
Adapter,straight,pipe to Hose
American Couplings Co
5330-01-215-967121146 INTERCHANGEABLE
Gasket
Parker Hannifin Corporation Div Hydraulic Systems Division
4730-01-249-22862114-6 INTERCHANGEABLE
Adapter,straight,tube to Boss
King Engineering Corporation Dba King-Gage Systems
5895-01-370-759121146 INTERCHANGEABLE
Synchronizer,electrical
Belfort Instrument Company
Cross-Reference Index
Part NumberManufacturer
21146 Itt Marlow a Unit of Itt Pumps and Compressors Div (USA)
A2308-3 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
Related Parts
4820-00-421-9406INTERCHANGEABLE
VALVE,SAFETY RELIEF
2A1-2MNPT100
3110-00-439-2579INTERCHANGEABLE
BEARING,BALL,ANNULAR
4994913
6145-00-538-8426INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
5310-00-596-1776INTERCHANGEABLE
WASHER,FINISHING
21146
8030-00-664-7077INTERCHANGEABLE
FILLER,WOOD
4820-00-793-0647INTERCHANGEABLE
CONTROL ASSEMBLY,VO
2-1146
4730-00-995-3527INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO HOSE
102-0606C
5330-01-215-9671INTERCHANGEABLE
GASKET
21146
4730-01-249-2286INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
2114-6
5895-01-370-7591INTERCHANGEABLE
SYNCHRONIZER,ELECTRICAL
21146
2815-01-470-3911INTERCHANGEABLE
REED STRIP,VALVE
21146
4810-01-512-3673INTERCHANGEABLE
VALVE,LINEAR,DIRECTIONAL CONTROL
21146-001

Frequently Asked Questions

What is NSN 3120-00-585-4522?

NSN 3120-00-585-4522 is a Bearing,sleeve, manufactured by Itt Marlow a Unit of Itt Pumps and Compressors Div, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-585-4522?

NSN 3120-00-585-4522 has 2 cross-referenced part numbers: 21146 (Itt Marlow a Unit of Itt Pumps and Compressors Div), A2308-3 (Chrysler Realty Company Llc Dba Daimler Chrysler).

What NSN replaces 3120-00-585-4522?

There are 12 known substitutes for 3120-00-585-4522: 4820-00-421-9406, 3110-00-439-2579, 6145-00-538-8426 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21146?

Key specifications for 21146: Corner Shape: SQUARE INSIDE LEFT CORNER; Material Document and Classification: ASTM B202,TYPE 1,CLASS A ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Special Features: HOLE TO BE DRILLED AFTER ASSEMBLY IN PILLOW BLOCK; Material: COPPER ALLOY OVERALL. 14 total characteristics are documented in the Federal Logistics Information System.

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