PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

127-10Bearing,sleeve

Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp · NSN 3120-00-975-2133 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-975-2133 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-975-2133. Primary manufacturer part number: 127-10.
Features
  • Bearing,sleeve — FSC 3120
  • Body Outside Diameter: 0.1874 INCHES MINIMUM AND 0.1876 INCHES MAXIMUM IN
  • Material: COPPER ALLOY OVERALL
  • Flange Outside Diameter: 0.2290 INCHES MINIMUM AND 0.2390 INCHES MAXIMUM IN
  • Corner Shape: SQUARE LEFT FLANGE BODY CORNER
  • Corner Shape: SQUARE OUTSIDE LEFT CORNER
  • Flange Width: 0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN
  • Corner Shape: SQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
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 3120-00-975-2133, 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 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
NSN3120-00-975-2133
Primary Part Number127-10
Item NameBearing,sleeve
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerNorthfield Precision Instrument Corp Dba Northfield Precision Instrument Corp
StatusACTIVE
Body Outside Diameter0.1874 INCHES MINIMUM AND 0.1876 INCHES MAXIMUM IN
MaterialCOPPER ALLOY OVERALL
Flange Outside Diameter0.2290 INCHES MINIMUM AND 0.2390 INCHES MAXIMUM IN
Corner ShapeSQUARE LEFT FLANGE BODY CORNER
Corner ShapeSQUARE OUTSIDE LEFT CORNER
Flange Width0.0210 INCHES MINIMUM AND 0.0230 INCHES MAXIMUM IN
Corner ShapeSQUARE LEFT FLANGE OUTSIDE RIGHT CORNER
Corner ShapeSQUARE OUTSIDE RIGHT CORNER
Material Document and ClassificationMIL-B-5697,TY 1,COMP A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Style DesignatorSOLID, EXTERNAL FLANGE ONE END
Corner ShapeSQUARE INSIDE RIGHT CORNER
Corner ShapeSQUARE INSIDE LEFT CORNER
Body Inside Diameter0.0550 INCHES MINIMUM AND 0.0552 INCHES MAXIMUM IN
Nondefinitive Spec/std Data1 TYPE AND A COMPOSITION
MaterialOIL LUBRICATING LUBRICATION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-060-32042C5858 INTERCHANGEABLE
Valve,check
Crissair Inc Div Esco Technologies
6210-00-176-6074389-1 INTERCHANGEABLE
Light,indicator
Itt Schadow Inc
3120-00-203-401612-710 INTERCHANGEABLE
Bearing,sleeve
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
3455-00-240-731312710 INTERCHANGEABLE
Cutter,milling,angle
Niagara Cutter Inc
5945-00-258-1773 INTERCHANGEABLE
Relay,electromagnetic
5342-00-721-5319714203 INTERCHANGEABLE
Coupling,clamp,grooved
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
5330-01-287-755512710 INTERCHANGEABLE
Seal,plain Encased
Skf Usa Inc. Dba Skf Aerospace Sealing Solutions
2590-01-365-396312710 INTERCHANGEABLE
Tank,oil,hydraulic System
DP Manufacturing Inc.
3020-01-563-973612710 INTERCHANGEABLE
Gear,spur
Carlisle & Finch Co
4940-01-594-391712710 INTERCHANGEABLE
Parts Kit,blast Cleaning Machine
Clemco Industries Corp. Dba Clemco Industries Corp Div Clemco
Cross-Reference Index
Part NumberManufacturer
MILB5687 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
127-10 PRIMARY Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp (USA)
Related Parts
4820-00-060-3204INTERCHANGEABLE
VALVE,CHECK
2C5858
6210-00-176-6074INTERCHANGEABLE
LIGHT,INDICATOR
389-1
3120-00-203-4016INTERCHANGEABLE
BEARING,SLEEVE
12-710
3455-00-240-7313INTERCHANGEABLE
CUTTER,MILLING,ANGLE
12710
5945-00-258-1773INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
5342-00-721-5319INTERCHANGEABLE
COUPLING,CLAMP,GROOVED
714203
5330-01-287-7555INTERCHANGEABLE
SEAL,PLAIN ENCASED
12710
2590-01-365-3963INTERCHANGEABLE
TANK,OIL,HYDRAULIC SYSTEM
12710
3020-01-563-9736INTERCHANGEABLE
GEAR,SPUR
12710
4940-01-594-3917INTERCHANGEABLE
PARTS KIT,BLAST CLEANING MACHINE
12710
1680-01-669-3649INTERCHANGEABLE
ARM,WINDSHIELD WIPER
12710
5310-01-728-1107INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
12-710

Frequently Asked Questions

What is NSN 3120-00-975-2133?

NSN 3120-00-975-2133 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 3120-00-975-2133?

NSN 3120-00-975-2133 has 2 cross-referenced part numbers: MILB5687 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 127-10 (Northfield Precision Instrument Corp Dba Northfield Precision Instrument Corp).

What NSN replaces 3120-00-975-2133?

There are 12 known substitutes for 3120-00-975-2133: 4820-00-060-3204, 6210-00-176-6074, 3120-00-203-4016 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 127-10?

Key specifications for 127-10: Body Outside Diameter: 0.1874 INCHES MINIMUM AND 0.1876 INCHES MAXIMUM IN; Material: COPPER ALLOY OVERALL; Flange Outside Diameter: 0.2290 INCHES MINIMUM AND 0.2390 INCHES MAXIMUM IN; Corner Shape: SQUARE LEFT FLANGE BODY CORNER. 17 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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