Quote for MS21231-4 Military Standards Corp Part with NSN 3120-00-937-9186

Part Number:  MS21231-4
Alternate P/N:  MS212314
Manufacturer:  military standards corp
NIIN:  9379186
CAGE Code:  96906
INC Code:  13208
Country:  USA
NCB Code:  00
FSG:  31 Bearings
Last Updated:  02-13-2026

Are you looking quote for part MS21231-4? The Military Standards Corp-manufactured component (CAGE Code: 96906) is documented under NSN 3120-00-937-9186 as Bearing Plain Self Aligning. For the fastest quote, please complete our RFQ form with details about MS21231-4. We guarantee a response within 15 minutes.

ASAP Components provides the verified MS21231-4, classified under INC 13208, FSG 31 Bearings, FSC 3120 Bearings Plain Unmounted, NIIN 00-937-9186, and NCB 00. Submit your requirements today to receive immediate pricing and availability information.

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NSN Information for Part Number MS21231-4 with NSN 3120-00-937-9186, 3120009379186

NSNFSCNIINCLSHazmatDEMILCancelled NSN
3120-00-937-9186

Item PartTypeName:

BEARING,PLAIN,SELF-ALIGNING

3120009379186N
CIICHCCESDPMICCriticalityENAC
U
Part NumberISCRNVCRNCCHCCMSDSSADC
MS21231-4122

Characteristics Data of NSN 3120-00-937-9186, 3120009379186

MRCCriteriaCharacteristic
ABXVBORE DIAMETER0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM
AGGFOUTER MEMBER OUTSIDE DIAMETER0.6245 INCHES MINIMUM AND 0.6250 INCHES MAXIMUM
AGGHOUTER MEMBER WIDTH0.3220 INCHES MINIMUM AND 0.3320 INCHES MAXIMUM
AGGJINNER MEMBER WIDTH0.4350 INCHES MINIMUM
AGKPSTATIC RADIAL LOAD RATING9000 POUNDS
CQFMHARDNESS RATING23.0 ROCKWELL C MINIMUM OUTER RACE MEMBER
CQFMHARDNESS RATING55.0 ROCKWELL C MINIMUM INNER MEMBER
MATTMATERIALPLASTIC POLYTETRAFLUOROETHYLENE OR GLASS RACE LINER
MATTMATERIALSTEEL COMP 440C INNER MEMBER
MATTMATERIALSTEEL CORROSION RESISTING OUTER RACE MEMBER
STYLSTYLE DESIGNATORWITH INSERT AND/OR LINER

Schedule B & Trade

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

Identification

CRITL The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
HMIC N - Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
PMIC U - Precious metal content is unknown

NSN Management Codes

AAC V
Classification Control U
MGMT_CTL 9z-----
Quantity per pack 1
Repariability
Shelf Life N/A
SOS S9i
Unit of Measure Ea

Freight Information

ACC: V - Trailers, vehicles, machinery, shop and warehouse equipment and supplies including special tools and equipment, ground servicing
ADC: A - Shipment is not a consolidation and does not exceed 84 inches in any dimension.
LCL: W - Rating variable
LTL: Q - 70.0
NMFC: 114850 - Bearing/bushing o/t ball/roller i/s
SHC: 5 - Low sensitivity, category iv, aa&e, unclassified
TCC: Z - No special type of cargo code applicable
WCC: 742 - Bearings

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