PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1790Bearing,sleeve

Parker-Hannifin Corporation Dba Control Systems Division · NSN 3120-00-857-5049 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-857-5049 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-857-5049. Primary manufacturer part number: 1790.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE INSIDE RIGHT CORNER
  • Body Inside Diameter: 0.8450 INCHES MINIMUM AND 0.8550 INCHES MAXIMUM IN
  • Lubricant Accommodation Style: GROOVED DOUBLE LOOP AND GROOVED CIRCULAR
  • Body Outside Diameter: 0.8750 INCHES MINIMUM AND 0.8759 INCHES MAXIMUM IN
  • Surface Groove Location and Quantity: 1 EXTERNAL
  • Corner Shape: CHAMFERED OUTSIDE RIGHT CORNER
  • Antirotation/lubrication Type and Quantity: 2 HOLE
Applications
  • Rotating machinery support and alignment
  • Shaft load distribution
  • Precision spindle assemblies
  • Applications requiring Copper Alloy or Copper Alloy 606 or Copper Alloy 614 or Copper Alloy 630 or Copper Alloy 642 Overall construction
General Description

The Bearing,sleeve, cataloged under National Stock Number 3120-00-857-5049, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Control Systems Division. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 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
NSN3120-00-857-5049
Primary Part Number1790
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Control Systems Division
StatusACTIVE
Corner ShapeSQUARE INSIDE RIGHT CORNER
Body Inside Diameter0.8450 INCHES MINIMUM AND 0.8550 INCHES MAXIMUM IN
Lubricant Accommodation StyleGROOVED DOUBLE LOOP AND GROOVED CIRCULAR
Body Outside Diameter0.8750 INCHES MINIMUM AND 0.8759 INCHES MAXIMUM IN
Surface Groove Location and Quantity1 EXTERNAL
Corner ShapeCHAMFERED OUTSIDE RIGHT CORNER
Antirotation/lubrication Type and Quantity2 HOLE
Surface Finish63.0 MICROINCHES INSIDE DIAMETER SURFACE OF BODY
MaterialCOPPER ALLOY OR COPPER ALLOY 606 OR COPPER ALLOY 614 OR COPPER ALLOY 630 OR COPPER ALLOY 642 OVERALL
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
Corner ShapeCHAMFERED OUTSIDE LEFT CORNER
Corner ShapeSQUARE INSIDE LEFT CORNER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-009-9172CB3238-24 INTERCHANGEABLE
Bearing,sleeve
Beemer Precision Inc
4730-00-050-4207AS15001-4 INTERCHANGEABLE
Fitting,lubrication
Sae International Dba Sae International
5310-00-238-10353238999 INTERCHANGEABLE
Washer,flat
Hatch & Kirk, Inc.
4820-00-287-6010373-3IN INTERCHANGEABLE
Valve,check
Crane Co Div Valve Div
6930-01-042-1489GA811BT1 INTERCHANGEABLE
Amplifier,operation
Northrop Grumman Systems Corporation
4320-01-060-99571790 INTERCHANGEABLE
Parts Kit,reciprocating Pump
Templeton Kenly and Co Inc
5998-01-070-4140 INTERCHANGEABLE
Circuit Card Assembly
4910-01-237-59641790 INTERCHANGEABLE
Tire Scriber
Bee Line Co Div Bee Line Company
6750-01-382-0572 INTERCHANGEABLE
Paper,photographic
6515-01-392-6761HRCI1790 INTERCHANGEABLE
Nebulizer Kit,inhalation Therapy
Medical Specialties Inc
Cross-Reference Index
Part NumberManufacturer
1790 Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations (USA)
1790 Sweetland Engineering Co (USA)
1790 PRIMARY Parker-Hannifin Corporation Dba Control Systems Division (USA)
Related Parts
3120-00-009-9172INTERCHANGEABLE
BEARING,SLEEVE
CB3238-24
4730-00-050-4207INTERCHANGEABLE
FITTING,LUBRICATION
AS15001-4
5310-00-238-1035INTERCHANGEABLE
WASHER,FLAT
3238999
4820-00-287-6010INTERCHANGEABLE
VALVE,CHECK
373-3IN
6930-01-042-1489INTERCHANGEABLE
AMPLIFIER,OPERATION
GA811BT1
4320-01-060-9957INTERCHANGEABLE
PARTS KIT,RECIPROCATING PUMP
1790
5998-01-070-4140INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
4910-01-237-5964INTERCHANGEABLE
TIRE SCRIBER
1790
6750-01-382-0572INTERCHANGEABLE
PAPER,PHOTOGRAPHIC
6515-01-392-6761INTERCHANGEABLE
NEBULIZER KIT,INHALATION THERAPY
HRCI1790
5365-01-399-8009INTERCHANGEABLE
PLUG,MACHINE THREAD
1790
4930-01-582-0125INTERCHANGEABLE
REEL ASSEMBLY,STATIC DISCHARGE

Frequently Asked Questions

What is NSN 3120-00-857-5049?

NSN 3120-00-857-5049 is a Bearing,sleeve, manufactured by Parker-Hannifin Corporation Dba Control Systems Division, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-857-5049?

NSN 3120-00-857-5049 has 3 cross-referenced part numbers: 1790 (Parker-Hannifin Corporation Dba Service and Support Operation Div Services and Support Operations), 1790 (Sweetland Engineering Co), 1790 (Parker-Hannifin Corporation Dba Control Systems Division).

What NSN replaces 3120-00-857-5049?

There are 12 known substitutes for 3120-00-857-5049: 3120-00-009-9172, 4730-00-050-4207, 5310-00-238-1035 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1790?

Key specifications for 1790: Corner Shape: SQUARE INSIDE RIGHT CORNER; Overall Length: 0.8450 INCHES MINIMUM AND 0.8550 INCHES MAXIMUM IN; Body Inside Diameter: 0.8450 INCHES MINIMUM AND 0.8550 INCHES MAXIMUM IN; Lubricant Accommodation Style: GROOVED DOUBLE LOOP AND GROOVED CIRCULAR. 13 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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