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Duplex Ball Bearing NSN 3110-01-287-2971

Item Description

Two single row annular ball bearings selected dimensionally to be a matched pair or set. The ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. May include a single row angular contact bearing with faces specially ground for duplex mounting.

NSN 3110-01-287-2971 NSN: 3110-01-287-2971

Features and Characteristics

Overall Width
0.2500 inches
Bore Diameter
0.1875 inches
Overall Outside Diameter
0.3750 inches
Lubrication Material
Oil
Surface Finish
Ground
Retainer Fabrication Method
Pressed
Shield Quantity
4
Load Direction
Radial
Standard Tolerance Designation
Abec no. 5p
Bearing Preload Rating
Between 1.75 pounds and 2.25 pounds
Special Features
Each bearing lubricated with one drop from no. 26 hypodermic needle with specified lube
Lubrication Material Specification
Brayco 815z, cagec 04939 mfr ref single material response
Material
Steel comp 305 retainer
Material Specification
Qq-s-763, cond a federal specification single material response outer ring
Surface Treatment
Passivate
Surface Treatment Specification
Astm a380 assn standard single treatment response
Style Designator
92a non-loading groove, non-separable, tandem mounting
FSC
3110 Unmounted Antifriction Bearings
NIIN
012872971
NSN
3110012872971

Manufacturer Part Numbers

Part numbers registered to this national stock number.
Part Number
Cage
Status
MSDS
Part Number:
H561
Cage Code:
40920
Status:
A
MSDS:
Part Number:
717801718-001
Cage Code:
04939
Status:
A
MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov
  • Schedule B Number: 8482105068
  • NAICS: 332991
  • SITC: 74610
  • Description: Ball bearings, nesoi
  • End Use (Code 21180):
    Industrial machines, other

Q & A

Frequently asked questions for NSN 3110-01-287-2971
What are the manufacturers of nsn 3110012872971?
Does this nsn 3110012872971 have a shelf life?
No. This NSN does not have an applicable shelf life.
What is the formal definition of nsn 3110012872971
Two single row annular ball bearings selected dimensionally to be a matched pair or set. the ring faces have been specially ground to specified offsets that will produce predetermined preload when mounted. may include a single row angular contact bearing with faces specially ground for duplex mounting.
Does nsn 3110012872971 contain any precious metals?
No precious metal content.
Does nsn 3110012872971 contain any hazardous materials?
No MSDS. No hazardous material.
What is the ESD classification of nsn 3110012872971?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)
INC
FIIG
App. Key
Cond. Code
Status
INC:
30213
FIIG:
A044A0
App. Key:
E
Cond. Code:
1
Status:
A

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  •   On Time Delivery
  •   Certificate of Conformance
  •   Quality Inspected Parts
  •   Quality Fast Service
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