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FSG 31 - Bearings
FSC 3110 - Unmounted Antifriction Bearings
NSN 3110-00-009-2571

3110-00-009-2571

NIIN 00-009-2571 - Tapered Roller Bearing

NSN 3110-00-009-2571 Classification

A cylindrical device in which the inner cone or outer cup turns upon a single or double row of tapered hardened rollers which roll easily in a race, thus minimizing friction and designed to carry a radial load and capable of sustaining axial thrust. Excludes:bearing,roller,thrust.

2.3750 inches nominal cone width, steel overall material, 2.5000 inches nominal bore diameter, 0.1300 inches nominal backface corner radius, 0.0300 inches nominal cone corner radius

National Stock Number: 3110-00-009-2571
Federal Supply Group: 31 - Bearings
Federal Supply Classification: 3110 - Unmounted Antifriction Bearings
National Item Identification Number: 00-009-2571
Item Name Code: 00021
Assigned Date: Wed, Jul 26, 1972
Schedule B Code: 8482200030
Requires Demilitarization: DEMIL/MLI

NSN 3110-00-009-2571 Specification

Set by the OEM (See RNCC code 3)

Backface Corner Radius: 0.1300 inches nominal
Bore Diameter: 2.5000 inches nominal
Cone Corner Radius: 0.0300 inches nominal
Cone Width: 2.3750 inches nominal
Material: steel overall
Overall Outside Diameter: 4.4375 inches nominal
Overall Width: 2.3750 inches nominal
Retainer Fabrication Method: pressed
Special Features: operating temperature not to exceed 121 deg c/250 deg f
Standard Tolerance Designation: afbma class 4
Style Designator: straight bore, double cone, single cup

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Quality, Safety, and Compliance in Every Supply Requirement

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ITAR Registered

DDTC Registered

HAZMAT Certified

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Every product is 100% inspected to support quality assurance, safety, documentation, and dependable delivery for critical aerospace, defense, MRO, and industrial sourcing requirements.

NSN 3110-00-009-2571 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
315424-53	34712	5	9	5	HD	-	-
39585D39520	60038	5	9	3	HD	-	-
FFB187/05-12	96906	2	2	E	ZZ	-	-
MS19085-3	96906	5	9	4	KZ	-	-

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