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Datasheet. MS21442-181 specification
The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.
0.3125in.
The overall length of a straight line which passes through the center of an item,and terminates at the outside circumference.
1.1250in.
The element,compound,or mixture with which the item is lubricated.
grease
0.6250in.
0.6875in.
12.0000in.
An additional finishing process by which the surface of an item is altered in respect to polishing,grinding,and the like.
ground
The number of seals included on the item.
2
Indicates the type of seal provided with the bearing.
contact
Indicates the type of alignment utilized whereby the item will adjust axially for misalignment.
rigid
The standard tolerance designation indicating the manufactured limitations of the item as established by the various specifications and standards.
afbma std tolerance for industrial needle bearings
Those unusual or unique characteristics or qualities of an item not covered in the other requirements and which are determined to be essential for identification.
oil grooves and one to four holes
The specification,standard,or manufacturers reference,and the classification designation,such as class,condition,temper,and the like,that identifies the lubrication material.
MIL-G-81322 mil spec single material response
The chemical compound or mechanical mixture properties of which the item is fabricated.
plastic polyhexamethylene adipamide seal
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel end plate
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel inner ring
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel outer ring
The chemical compound or mechanical mixture properties of which the item is fabricated.
steel roller
The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
track roller, NON-Separable
Answers.
Track roller, non-separable
Steel roller
Steel outer ring
Steel inner ring
Steel end plate
Plastic polyhexamethylene adipamide seal
Schedule B number: 8482400000
Needle roller bearings
FSC 3110 ⁓ Bearings, antifriction, unmounted
Note-this class includes bearings that generally have roller or balls confined by an inner and outer ring to relieve friction in/on/around rotating/moving mechanisms.
Excluding plain bearings (fsc 3120); jewel bearings (fsc 3120)
NSN 3110-01-421-4846 BEARING,ROLLER,NEEDLE
track roller, non-separable oil grooves 0.3125" bore diameter
- NIIN
- 014214846
- NIIN Date
- 11/09/95
- Schedule B
- 8482400000
- Name Code
- 00051
- FIIG
- A044A0
- QUP
- Historical Price
- $57.00 EA
- DEMIL / ITAR
- Uncontrolled item (Code A)
- Hazmat
- No hazard information available from HMIRS.
- MSDS
- N/A
- Precious Metals
- No precious metals
- Enviromental
- N/A
- Electrostatic ESD & EMI
- No ESD or EMI sensitivity
Other Part Numbers Parts with same form, fit, and function by other manufacturers
Major End Users Countries and entities
- - Department of The Air Force
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MS21442-181 / Bearing,roller,needleWhat is the formal definition of this item?
A single or multiple-row antifriction bearing used with or without inner or outer races characterized by relatively small size rollers usually not ranging above 0.250 inch (6.35mm) diameter and generally longer in length in relation to diameter.
