PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

99121900Bearing,sleeve

Alfa Laval Inc · NSN 3120-00-662-7145 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-662-7145 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-662-7145. Primary manufacturer part number: 99121900.
Features
  • Bearing,sleeve — FSC 3120
  • Corner Shape: SQUARE ALL CORNERS
  • Material: COPPER ALLOY OVERALL
  • Surface Finish: 63.0 MICROINCHES OVERALL
  • Body Outside Diameter: 2.1690 INCHES MINIMUM AND 2.1710 INCHES MAXIMUM IN
  • Style Designator: SOLID, PLAIN, NO OUTSIDE FLANGES
  • Material: OIL LUBRICATING LUBRICATION
  • Body Inside Diameter: 1.9600 INCHES MINIMUM AND 1.9705 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 3120-00-662-7145, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Alfa Laval Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-662-7145
Primary Part Number99121900
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerAlfa Laval Inc
StatusACTIVE
Corner ShapeSQUARE ALL CORNERS
MaterialCOPPER ALLOY OVERALL
Surface Finish63.0 MICROINCHES OVERALL
Body Outside Diameter2.1690 INCHES MINIMUM AND 2.1710 INCHES MAXIMUM IN
Style DesignatorSOLID, PLAIN, NO OUTSIDE FLANGES
MaterialOIL LUBRICATING LUBRICATION
Body Inside Diameter1.9600 INCHES MINIMUM AND 1.9705 INCHES MAXIMUM IN
Material Document and ClassificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5970-00-043-3758A2113 INTERCHANGEABLE
Insulator,plate
Kelly Manufacturing Company
6110-00-509-990560264 INTERCHANGEABLE
Regulator,voltage
John Reiner & Co. Inc.
5935-00-940-73223BNC-AT-FMF INTERCHANGEABLE
Adapter,connector
Itt Cannon Llc
3010-00-991-7034A2113 INTERCHANGEABLE
Back Plate
Twin Disc, Incorporated Dba Twin Disc Mid-Atlantic
4810-01-049-238421900 INTERCHANGEABLE
Seat,valve
Eaton Aerospace Llc
4910-01-395-424621900 INTERCHANGEABLE
Adapter,pressure Test
Diesel Injection Service Co Inc
5920-01-459-805721900 INTERCHANGEABLE
Fuse,cartridge
Reable Therapeutics Inc Dba Chattanooga Group
5935-01-515-813221900 INTERCHANGEABLE
Adapter,connector
Amphenol Corporation Div Amphenol Rf
Cross-Reference Index
Part NumberManufacturer
99121900 PRIMARY Alfa Laval Inc (USA)
A2113 PRIMARY Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
21900 PRIMARY Alfa Laval Inc (USA)
A1024PC28 Alfa Laval Inc (USA)
Related Parts
5970-00-043-3758INTERCHANGEABLE
INSULATOR,PLATE
A2113
6110-00-509-9905INTERCHANGEABLE
REGULATOR,VOLTAGE
60264
5935-00-940-7322INTERCHANGEABLE
ADAPTER,CONNECTOR
3BNC-AT-FMF
3010-00-991-7034INTERCHANGEABLE
BACK PLATE
A2113
4810-01-049-2384INTERCHANGEABLE
SEAT,VALVE
21900
4910-01-395-4246INTERCHANGEABLE
ADAPTER,PRESSURE TEST
21900
5920-01-459-8057INTERCHANGEABLE
FUSE,CARTRIDGE
21900
5935-01-515-8132INTERCHANGEABLE
ADAPTER,CONNECTOR
21900

Frequently Asked Questions

What is NSN 3120-00-662-7145?

NSN 3120-00-662-7145 is a Bearing,sleeve, manufactured by Alfa Laval Inc, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-662-7145?

NSN 3120-00-662-7145 has 4 cross-referenced part numbers: 99121900 (Alfa Laval Inc), A2113 (Chrysler Realty Company Llc Dba Daimler Chrysler), 21900 (Alfa Laval Inc), A1024PC28 (Alfa Laval Inc).

What NSN replaces 3120-00-662-7145?

There are 8 known substitutes for 3120-00-662-7145: 5970-00-043-3758, 6110-00-509-9905, 5935-00-940-7322 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 99121900?

Key specifications for 99121900: Corner Shape: SQUARE ALL CORNERS; Material: COPPER ALLOY OVERALL; Surface Finish: 63.0 MICROINCHES OVERALL; Overall Length: 1.0000 INCHES NOMINAL IN. 9 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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