Ball Bearing Unit

X4821

X4821
(NSN) National Stock Number
3130-00-108-0586
Federal Supply Classification
3130 Mounted Bearings
Item Name Code
30556
Schedule B Code
8482991050
Summary

4.3750 inches nominal bolt circle diameter, 0.5625 inches nominal flange thickness, 0.5781 inches nominal mounting hole diameter, 1.9375 inches nominal bore diameter, 1.5625 inches nominal housing length, 5.6250 inches nominal housing width

DAC HCC DMIL RNCC
5 - - 5
RNVC SADC MSDS RNAAC
9 - - AX
Identification

An assembled unit, composed of a housing incorporating a single or multiple row ball bearing(s), designed to meet various or specific conditions of mounting.

INC FIIG Concept Condition
30556 A093A0 - 1
Specifications
Bolt Circle Diameter
4.3750 inches nominal
Details The length of a straight line which passes through the center of a bolt circle,and terminates at the circumference.
Flange Thickness
0.5625 inches nominal
Details A measurement of the smallest dimension of a flange,in distinction from length or width.
Mounting Hole Diameter
0.5781 inches nominal
Details The length of a straight line which passes through the center of a mounting hole,and terminates at the circumference.
Bore Diameter
1.9375 inches nominal
Details The length of a straight line which passes through the center of a circular bore,and terminates at the circumference.
Housing Length
1.5625 inches nominal
Details A measurement of the longest dimension of the housing,in distinction from width.
Housing Width
5.6250 inches nominal
Details A measurement taken at right angles to the length of a housing,in distinction from thickness.
Lubrication Fitting Type
hydraulic
Details Indicates the type of fitting used to lubricate the item.
Rolling Element Groove Quantity
1
Details The number of grooves in which the rolling element rides.
Alignment Type
self-aligning
Details Indicates the type of alignment utilized whereby the item will adjust axially for misalignment.
Internal Fit-Up Designation
standard
Details The designation specifying the type of fit as recognized by industrial and governmental agencies.
Assembly Overall Length
2.1562 inches nominal
Details The dimension measured along the longitudinal axis with terminated points at the extreme ends of the assembly.
Seal Type
labyrinth
Details Indicates the type of seal included with the item.
Block Type
fixed
Details Indicates the type of block.
Shaft End Type
open
Details Indicates the type of shaft end provided.
Seal Location
both ends
Details Indicates the location of the seal.
Load Capability Type
radial
Details Indicates the type of load capability.
Features Provided
ground rolling element groove
Details Those features,not otherwise specified,which may be required for proper functioning of the item.
Lubrication Fitting Angle From Horizontal Centerline
90.0 degrees nominal
Details The angle of the lubrication fitting from the horizontal centerline of the item.
Rotating Element Locking Method
direct
Details The means of locking the rotating element of the bearing to the shaft.
Mounting Hole Type
round, unthreaded
Details Indicates the type of mounting hole(s) provided on the item.
Lubrication Material
grease
Details The chemical compound or mechanical mixture properties with which the item is lubricated.
Material
iron cast housing
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Material
steel seal and wool seal
Details The chemical compound or mechanical mixture properties of which the item is fabricated.
Style Designator
flange block
Details The style designation indicating the configuration that most nearly corresponds to the appearance of the item.
Master-Cross Reference List
Part CAGE DAC HCC RNCC RNVC MSDS RNAAC
6421A 81795 5 - 3 2 - TG
N6421A 81795 X - 3 2 - XX
SF31 57448 X - 5 9 - XX
F3U231H 36384 6 - E 8 - 75
FC4-25-1 15/16 92563 E - 3 2 - KZ
350565 05613 5 - 5 9 - ZZ
S9914 31974 X - 3 2 - XX
FYN115 52676 X - 5 2 - XX
X5358 52676 5 - 3 2 - KZ
124213 71956 4 - 3 2 - KE
SC4-1 15-16 71956 5 - 5 2 - KE
61J10905-79 98747 5 - 5 2 - KE
Material and Special Handling
Hazardous material, precious metals, criticality, and electrostatic discharge indicators.
HMIC PMIC ESD/EMI Criticality
N A - -
Freight
Universal / National Freight and Handling Information
UFC HMC LTL LCL
58770 - W -
RVC WCC TCC SHC
- 742 Z 9

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Manufacturer
SKF USA INC.
CAGE: 52676
BLUE BELL , PA , 19422-1961
UNITED STATES
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FAQs
Frequently asked questions for NSN 3130-00-108-0586
What is the NIIN of the NSN 3130-00-108-0586?
The National Item Identification Number (NIIN) of the NSN 3130-00-108-0586 is 00-108-0586
When the NSN 3130-00-108-0586 was assigned to the Federal Catalog?
It was assigned 61 years ago, on Tue, Jan 1, 1963
Does the NSN 3130-00-108-0586 contain any precious metals?
Does not contain precious metal
Does the NSN 3130-00-108-0586 contain any hazardous material?
No data in HMIRS

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