NSN 3120-01-252-8031, 3120012528031
BEARING,PLAIN,ROD END

Federal Supply Classification: FSC 3120 - Bearings, Plain, Unmounted
National Item Identification Number: NIIN 012528031
Codification Country: United States
Item Name Code: INC 13209
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 3120-01-252-8031

National Stock Number (NSN) 3120-01-252-8031, or NIIN 012528031, (bearing,plain,rod end) was assigned April 8, 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 no manufacturer part numbers associated to this NSN.

This part number has not been procured by the US Government in over 5 years, with the most recent procurement date of Sep 06, 2019. There has been one contract issued for this part number, with one award given. The US Government has only awarded those contracts to one supplier. The last contract numbers awarded were: SPE4A619V397V. The total value of the awarded contracts has been US$ 2,365.50.

This NSN is unique to one weapons system.

There has been very little 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 Dec 06, 2013, this NSN's acquisition method was noted as: Suitable for Competitive Acquisition. (Potential sources shall include dealers/distributors.) The Government has unlimited rights to the technical data, and the data package is complete. Valid AMCs: 1 and 2.

This NSN is assigned to Item Name Code (INC) 13209. [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 OUTER MEMBER OF THE ASSEMBLY IS MODIFIED TO PROVIDE A SHANK. THE INNER MEMBER MAY BE EITHER A PLAIN SPHERICAL BEARING OR A SLEEVE BEARING. EXCLUDES:BEARING, PLAIN, SPHERICAL AND BEARING, PLAIN, SELF-ALIGNING.]. 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 3120012528031 does not contain precious metals.

This NSN is associated to Schedule B 8483308055: transmission shafts: bearing housings, plain shaft bearings with housing, rod end bearings. The Schedule B End Use is listed as industrial machines, other. NAICS classification category 333613: mechanical power transmission equipment manufacturing.

This information was last updated on Sep 01, 2026.

Technical Characteristics

SURFACE TREATMENT: (SFTT) UNABLE TO DECODE
SURFACE TREATMENT: (SFTT) ZINC ROD END BODY AND CHROMATE ROD END BODY OR CADMIUM ROD END BODY OR CADMIUM ROD END BODY AND CHROMATE ROD END BODY
MATERIAL: (MATT) STEEL COMP 301 RACE INSERT OR STEEL COMP 302 RACE INSERT OR STEEL COMP 302B RACE INSERT OR STEEL COMP 303 RACE INSERT OR STEEL COMP 303SE RACE INSERT OR STEEL COMP 304 RACE INSERT OR STEEL COMP 304L RACE INSERT OR STEEL COMP 305 RACE INSERT OR STEEL COMP 309 RACE INSERT OR STEEL COMP 310 RACE INSERT OR STEEL COMP 316 RACE INSERT OR STEEL COMP 316L RACE INSERT OR STEEL COMP 317 RACE INSERT OR STEEL COMP 321 RACE INSERT OR STEEL COMP 347 RACE INSERT OR STEEL COMP 440C RACE INSERT
MATERIAL: (MATT) UNABLE TO DECODE
BORE CENTER TO SHANK END DISTANCE: (AGGG) INCHES MINIMUM 1.8430 AND INCHES MAXIMUM 1.9070
BORE DIAMETER: (ABXV) INCHES MINIMUM 0.3120 AND INCHES MAXIMUM 0.3140
HARDNESS RATING: (CQFM) INNER MEMBER ROCKWELL C MINIMUM 57.0 AND ROCKWELL C MAXIMUM 63.0
INNER MEMBER WIDTH: (AGGJ) INCHES MINIMUM 0.4320 AND INCHES MAXIMUM 0.4370
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) INNER MEMBER MIL SPEC SINGLE MATERIAL RESPONSE -IL-S-7420 OR ASSN STD SINGLE MATERIAL RESPONSE A-S-6440
MATERIAL DOCUMENT AND CLASSIFICATION: (MDCL) ROD END BODY ASSN STD ALL MATERIAL RESPONSES AST- A108 OR ASSN STD ALL MATERIAL RESPONSES AST-A 576
MATERIAL: (MATT) INNER MEMBER STEEL COMP E52100
MATERIAL: (MATT) RACE INSERT STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 303SE OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 309 OR STEEL COMP 310 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 440C
MATERIAL: (MATT) ROD END BODY STEEL COMP 1010 OR STEEL COMP 1012 OR STEEL COMP 1015 OR STEEL COMP 1016 OR STEEL COMP 1017 OR STEEL COMP 1018 OR STEEL COMP 1019 OR STEEL COMP 1020 OR STEEL COMP 1021 OR STEEL COMP 1022 OR STEEL COMP 1023 OR STEEL COMP 1025 OR STEEL COMP 1026 OR STEEL COMP 1029 OR STEEL COMP 1030
OUTER MEMBER OUTSIDE DIAMETER: (AGGF) INCHES MINIMUM 0.8600 AND INCHES MAXIMUM 1.0000
OUTER MEMBER WIDTH: (AGGH) INCHES MINIMUM 0.3220 AND INCHES MAXIMUM 0.3480
OVERALL LENGTH: (ABHP) INCHES NOMINAL 2.3100
SHANK THREAD LENGTH: (AGGY) INCHES MINIMUM 1.0620
SPECIAL FEATURES: (FEAT) RACE INSERT DRY FILM LUBRICANT PER MIL-L-8937
STATIC RADIAL LOAD RATING: (AGKP) POUNDS 2500
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) INNER MEMBER FED SPEC SINGLE TREATMENT RESPONSE QQ-C-320,TYE 1,CLASS 2
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) ROD END BODY FED SPEC 1ST TREATMENT RESPONSE QQ-Z-325,TYE 1 OR 2,CLASS 3 OR FED SPEC 2ND TREATMENT RESPONSE QQ--416,TYE 1 OR 2,CLASS 3
SURFACE TREATMENT: (SFTT) INNER MEMBER CHROMIUM
SURFACE TREATMENT: (SFTT) ROD END BODY ZINC AND CHROMATE AND CADMIUM AND CADMIUM AND CHROMATE
THREAD CLASS: (AAJD) 3A
THREAD DIAMETER: (AWDP) INCHES NOMINAL 0.3125
THREAD DIRECTION: (AAJF) RIGHT-HAND
THREAD QUANTITY PER INCH: (CMLP) 24
THREAD SERIES DESIGNATOR: (THSD) UNF
MATERIAL: (MATT) STEEL COMP 1010 ROD END BODY OR STEEL COMP 1012 ROD END BODY OR STEEL COMP 1015 ROD END BODY OR STEEL COMP 1016 ROD END BODY OR STEEL COMP 1017 ROD END BODY OR STEEL COMP 1018 ROD END BODY OR STEEL COMP 1019 ROD END BODY OR STEEL COMP 1020 ROD END BODY OR STEEL COMP 1021 ROD END BODY OR STEEL COMP 1022 ROD END BODY OR STEEL COMP 1023 ROD END BODY OR STEEL COMP 1025 ROD END BODY OR STEEL COMP 1026 ROD END BODY OR STEEL COMP 1029 ROD END BODY OR STEEL COMP 1030 ROD END BODY
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: (STDC) UNABLE TO DECODE