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NSN 3120-01-253-4497, 3120012534497
BEARING,PLAIN,SELF-ALIGNING

Federal Supply Classification
FSC 3120 - Bearings, Plain, Unmounted
National Item Identification Number
NIIN 012534497
Codification Country
United States
Item Name Code
INC 13208
Criticality
(X) This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Hazardous Material Indicator Code
(N) There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials.
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DLMS® Summary

National Stock Number 3120-01-253-4497

National Stock Number (NSN) 3120-01-253-4497, or NIIN 012534497, (bearing,plain,self-aligning) was assigned April 18, 1987 in the Federal Logistics Information System (FLIS). This NIIN is Available for Manual Assignment. This NSN does not replace any other NSNs.

There are 2 manufacturer part numbers associated with this NSN. One of those part number(s) are considered obsolete. The manufacturer part numbers were originally supplied by 7 suppliers. Today, 7 suppliers are listed as Active suppliers for this NSN. Of the active suppliers, only one supplier is deemed design controlled or valid supply parts.

This part number has not been procured by the US Government in over a year. There have been 3 contracts issued for this part number, with 3 awards given. There is minimal competition for this NSN. The US Government has awarded contracts to 3 different suppliers. The last contract numbers awarded were: SPE4A622V680B, SPE4A622V680B, SPM4A611MCS47, SPM4A611MCS47, SPM4A510MA857. The total value of the awarded contracts has been US$ 94,631.23.

This NSN is somewhat common among different platforms, belonging to 2 different weapons systems.

There has been a small amount of demand for this national stock number. The demand for this NSN originated from less than 5 countries. Based on a planned procurement review by the Primary Inventory Control Activity (PICA) on Jan 30, 2009, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) Acquisition of this part is restricted to source(s) specified on "Source Control", "Altered Item" or "Selected Item" drawings/documents. Valid AMCs: 1, 2, 3, 4 and 5.

This NSN is assigned to Item Name Code (INC) 13208. [A DETACHABLE ASSEMBLY IN OR ON WHICH A JOURNAL, GUDGEON, PIVOT, OR THE LIKE MOVES. IT IS USED TO CARRY A LOAD AND TO REDUCE SLIDING FRICTION. IT DOES NOT EMPLOY ROLLING ELEMENTS. THE ITEM CONSISTS OF A BORED PRECISION GROUND BALL (OR SPHERICAL PLAIN BEARING) AROUND WHICH AN OUTER RING IS FITTED. THE ASSEMBLY MAY BE EITHER SEPARABLE OR NONSEPARABLE. EXCLUDES:BEARING, PLAIN, ROD END AND BEARING, PLAIN, SPHERICAL.]. This item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. There is no data in the HMIRS and the NSN is in an FSC not generally suspected of containing hazardous materials. NSN 3120012534497 does not contain precious metals.

This NSN is associated to Schedule B 8482300040: spherical roller bearings, single row. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 332991: ball and roller bearing manufacturing.

This information was last updated on .


Technical Characteristics

BORE DIAMETER
(ABXV) 1.5557 INCHES MINIMUM AND 1.5577 INCHES MAXIMUM
HARDNESS RATING
(CQFM) 28.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM OUTER RACE MEMBER
HARDNESS RATING
(CQFM) 37.0 ROCKWELL C MINIMUM INNER MEMBER
INNER MEMBER WIDTH
(AGGJ) 0.9700 INCHES MINIMUM AND 0.9750 INCHES MAXIMUM
OUTER MEMBER OUTSIDE DIAMETER
(AGGF) 2.3295 INCHES MINIMUM AND 2.3300 INCHES MAXIMUM
OUTER MEMBER WIDTH
(AGGH) 0.9700 INCHES MINIMUM AND 0.9750 INCHES MAXIMUM
LUBRICATION FEATURE
(CTLM) GROOVE AND PERFORATION EXTERNAL INNER MEMBER
LUBRICATION FEATURE
(CTLM) GROOVE AND PERFORATION INTERNAL OUTER MEMBER
LUBRICATION MATERIAL
(ADZG) GREASE, MIL-G-81322
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OUTER RACE MEMBER
MATERIAL DOCUMENT AND CLASSIFICATION
(MDCL) QQ-C-530 FED SPEC ALL MATERIAL RESPONSES INNER MEMBER
MATERIAL
(MATT) COPPER ALLOY 172 OR COPPER ALLOY 173 INNER MEMBER
MATERIAL
(MATT) STEEL COMP 630 OUTER RACE MEMBER
SPECIFICATION/STANDARD DATA
(ZZZK) 76301-4-329 MANUFACTURERS STANDARD
STATIC RADIAL LOAD RATING
(AGKP) 141000 POUNDS
STYLE DESIGNATOR
(STYL) WITHOUT INSERT OR LINER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
(STDC) QQ-P-416,TYPE 2,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE OUTER RACE MEMBER
SURFACE TREATMENT
(SFTT) CADMIUM AND CHROMATE OUTER RACE MEMBER
LUBRICATION FEATURE
(CTLM) GROOVE EXTERNAL INNER MEMBER AND PERFORATION EXTERNAL INNER MEMBER
LUBRICATION FEATURE
(CTLM) GROOVE INTERNAL OUTER MEMBER AND PERFORATION INTERNAL OUTER MEMBER
MATERIAL
(MATT) COPPER ALLOY 172 INNER MEMBER OR COPPER ALLOY 173 INNER MEMBER
SURFACE TREATMENT
(SFTT) CADMIUM OUTER RACE MEMBER AND CHROMATE OUTER RACE MEMBER

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