PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

127-20Bearing,sleeve

Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp · NSN 3120-00-222-1190 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-222-1190 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-222-1190. Primary manufacturer part number: 127-20.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 0.2499 INCHES MINIMUM AND 0.2501 INCHES MAXIMUM IN
  • Flange Width: 0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN
  • Flange Outside Diameter: 0.2910 INCHES MINIMUM AND 0.3010 INCHES MAXIMUM IN
  • Body Inside Diameter: 0.0783 INCHES MINIMUM AND 0.0785 INCHES MAXIMUM IN
  • Corner Shape: SQUARE LEFT FLANGE BODY CORNER
  • Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
  • Material: COPPER ALLOY OVERALL
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 3120-00-222-1190, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-222-1190
Primary Part Number127-20
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerNorthfield Precision Instrument Corp Dba Northfield Precision Instrument Corp
StatusACTIVE
Body Outside Diameter0.2499 INCHES MINIMUM AND 0.2501 INCHES MAXIMUM IN
Flange Width0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN
Flange Outside Diameter0.2910 INCHES MINIMUM AND 0.3010 INCHES MAXIMUM IN
Body Inside Diameter0.0783 INCHES MINIMUM AND 0.0785 INCHES MAXIMUM IN
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
MaterialCOPPER ALLOY OVERALL
Corner ShapeSQUARE INSIDE LEFT CORNER
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Material Document and ClassificationMIL-L-6085 MIL SPEC SINGLE MATERIAL RESPONSE LUBRICATION
Corner ShapeSQUARE INSIDE RIGHT CORNER
Material Document and ClassificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialOIL LUBRICATING LUBRICATION
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5305-00-071-1787AES01C438A12AW9A91 INTERCHANGEABLE
Screw,cap,hexagon Head
The American Society of Mechanical Engineers
3020-00-118-404712720 INTERCHANGEABLE
Gear
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
3455-00-272-985612720 INTERCHANGEABLE
Cutter,milling,angle
Niagara Cutter Inc
6670-00-803-968080850116 INTERCHANGEABLE
Weight Set,balance
Ohaus Corporation
5950-01-142-76971856467 INTERCHANGEABLE
Reactor
Northrop Grumman Systems Corporation
2920-01-282-852219810 INTERCHANGEABLE
Regulator,engine Generator
Creating Technology Solutions, Llc Dba Technology Research Corp Div Technology Research Corp
2940-01-516-9552 INTERCHANGEABLE
Air Cleaner,intake
5340-01-567-202311-4859-P8-11 INTERCHANGEABLE
Door,access,utility
Eastern Co Div Eberhard Manufacturing
2541-01-578-6907 INTERCHANGEABLE
Slat Armor Kit
Cross-Reference Index
Part NumberManufacturer
516F Chrysler Corp Amplex Div (USA)
MILB5687 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1426K70P002 Ametek Inc Div Aerospace and Defense (USA)
127-20 PRIMARY Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp (USA)
Related Parts
5305-00-071-1787INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
AES01C438A12AW9A91
3020-00-118-4047INTERCHANGEABLE
GEAR
12720
3455-00-272-9856INTERCHANGEABLE
CUTTER,MILLING,ANGLE
12720
6670-00-803-9680INTERCHANGEABLE
WEIGHT SET,BALANCE
80850116
5950-01-142-7697INTERCHANGEABLE
REACTOR
1856467
2920-01-282-8522INTERCHANGEABLE
REGULATOR,ENGINE GENERATOR
19810
2940-01-516-9552INTERCHANGEABLE
AIR CLEANER,INTAKE
5340-01-567-2023INTERCHANGEABLE
DOOR,ACCESS,UTILITY
11-4859-P8-11
2541-01-578-6907INTERCHANGEABLE
SLAT ARMOR KIT

Frequently Asked Questions

What is NSN 3120-00-222-1190?

NSN 3120-00-222-1190 is a Bearing,sleeve, manufactured by Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-222-1190?

NSN 3120-00-222-1190 has 4 cross-referenced part numbers: 516F (Chrysler Corp Amplex Div), MILB5687 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1426K70P002 (Ametek Inc Div Aerospace and Defense), 127-20 (Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp).

What NSN replaces 3120-00-222-1190?

There are 9 known substitutes for 3120-00-222-1190: 5305-00-071-1787, 3020-00-118-4047, 3455-00-272-9856 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 127-20?

Key specifications for 127-20: Body Outside Diameter: 0.2499 INCHES MINIMUM AND 0.2501 INCHES MAXIMUM IN; Flange Width: 0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN; Flange Outside Diameter: 0.2910 INCHES MINIMUM AND 0.3010 INCHES MAXIMUM IN; Body Inside Diameter: 0.0783 INCHES MINIMUM AND 0.0785 INCHES MAXIMUM IN. 16 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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