Self-aligning Plain Bearing NSN 3120-01-348-8581

Item Description

A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. It is used to carry a load and to reduce sliding friction. It does not employ rolling elements. The item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. The assembly may be either separable or nonseparable. Excludes bearing, plain, rod end and bearing, plain, spherical.

NSN: 3120-01-348-8581

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Features and Characteristics

Bore Diameter

Between 0.2495 inches and 0.2500 inches

Lubrication Material

Grease, mil-g-21164

Outer Member Outside Diameter

Between 0.6557 inches and 0.6562 inches

Outer Member Width

Between 0.2450 inches and 0.2550 inches

Inner Member Width

Between 0.3410 inches and 0.3430 inches

Static Radial Load Rating

4300 pounds

Hardness Rating

56.0 rockwell c inner member27.0 rockwell c outer race member and 36.0 rockwell c outer race member

Material

Steel comp 440c inner membercopper alloy outer race member

Material Specification

Ams 5630 assn standard single material response inner member

Surface Treatment

Chromium inner membercadmium outer race member and chromate outer race member

Surface Treatment Specification

Qq-c-320 federal specification single treatment response inner memberqq-p-416, type 2, class 2 federal specification single treatment response outer race member

Style Designator

Without insert or liner

FSC

3120 Unmounted Plain Bearings

NIIN

013488581

NSN

3120013488581

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

MS21154B4

Cage Code:

96906

Status:

MSDS:

Part Number:

MS21154

Cage Code:

96906

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8482300040
NAICS: 332991
SITC: 74630
Description: Spherical roller bearings, single row
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 3120-01-348-8581

What are the manufacturers of nsn 3120013488581?

Military Standards (96906)

Does this nsn 3120013488581 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 3120013488581
A detachable assembly in or on which a journal, gudgeon, pivot, or the like moves. it is used to carry a load and to reduce sliding friction. it does not employ rolling elements. the item consists of a bored precision ground ball (or spherical plain bearing) around which an outer ring is fitted. the assembly may be either separable or nonseparable. excludes bearing, plain, rod end and bearing, plain, spherical.

Does nsn 3120013488581 contain any precious metals?
No precious metal content.

Does nsn 3120013488581 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 3120013488581?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

13208

FIIG:

A045A0

App. Key:

Cond. Code:

Status:

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On Time Delivery
Certificate of Conformance
Quality Inspected Parts
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