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FSC 3110 - Unmounted Antifriction Bearings
NSN 3110-00-018-7204

3110-00-018-7204

NIIN 00-018-7204 - Duplex Ball Bearing

NSN 3110-00-018-7204 Classification

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.

0.0028 inches minimum radial and 0.0033 inches maximum radial internal clearance, angular load direction, 2.1633 inches nominal bore diameter, unable to decode material, 80.00 millimeters nominal overall outside diameter

National Stock Number: 3110-00-018-7204
Federal Supply Group: 31 - Bearings
Federal Supply Classification: 3110 - Unmounted Antifriction Bearings
National Item Identification Number: 00-018-7204
Item Name Code: 30213
Assigned Date: Tue, Apr 25, 1967
Schedule B Code: 8482105068
Requires Demilitarization: DEMIL/MLI

NSN 3110-00-018-7204 Specification

Set by the OEM (See RNCC code 3)

Bore Diameter: 2.1633 inches nominal
Internal Clearance: 0.0028 inches minimum radial and 0.0033 inches maximum radial
Load Direction: angular
Material: unable to decode
Overall Outside Diameter: 80.00 millimeters nominal
Overall Width: 26.00 millimeters nominal
Retainer Fabrication Method: machined
Special Features: first radial clearance w/10 lb gage,second radial clearance w/11 lb gage load,rings magnaflux 100 pct per ams 2640,etch v on outside of both outer rings when mounted face to face
Standard Tolerance Designation: abec no.3
Style Designator: counterbored outer rings, non-separable, face to face mounting
Surface Finish: ground

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NSN 3110-00-018-7204 Material

Hazmat, Precious Metals, Criticality, Environment, and ESD

(PMIC) Precious Metals Indicator

Precious metal content is unknown

What does the U code means?

Precious metals indicator code (pmic): this code is to identify items that have precious metals as part of their content. Precious metals are those metals generally considered to be uncommon and highly valuable which are relatively superior in certain properties such as resistance to corrosion and electrical conductivity. The precious metals recovery program for the federal government encompasses gold, silver, platinum, and the platinum family which consists of palladium, iridium, rhodium, osmium, and ruthenium. See volume 10, table 160 and quick info on-line.

(HMIC) Hazardous Metal Indicator

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

What does the N code means?

Hazardous materials indicator code: a code established in the dlis total item record (tir) to identify to users of the federal catalog system all known or suspected hazardous items as defined by safety/health, transaction and/or environmental regulations, to serve as a flag that a procuring activity must acquire a material safety data sheet when a hazardous item is procured, and to inform federal catalog system users when more detailed information on an item is available in the hazardous material information system. See volume 10, table 179 and quick info on-line.

Criticality Code

The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

What does the X code means?

Criticality code, federal item identification guide: a code which indicates when an item is technically critical, by reason of tolerance, fit, application, nuclear hardness properties or other characteristic which affects identification of the item. See volume 10, table 181 and quick info on-line.

Cross Reference Parts

Part numbers that meet the specification outlined on this page and set by the OEM

Part Number	CAGE	RNCC	RNVC	DAC	RNAAC	MSDS	SADC
1911RD401F	38443	5	1	5	KE	-	-
3M9311WI2MBRDUE9655	21335	5	9	5	KE	-	-
SB1056-2	38443	3	2	5	ZZ	-	-
SB1056-2	78286	1	2	1	KE	-	-

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