NSN 3120-00-998-5055 MKR4DA, MKR-4DA, MKV4DA

Product Details | ROD END PLAIN BEARING

3120-00-998-5055 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.

Part Alternates: MKR4DA, MKR-4DA, MKV4DA, ADNE455, ADNE4-55, ART4E20, C6314, C631-4, DREM4187, DREM4-187, DREM41871, DREM-4-187-1, FFM4H, TFM4H, TFM4K, TFM4W, 12K32537, 12K3253-7, 177037, 3120-00-998-5055, 00-998-5055, 3120009985055, 009985055

Bearings | Bearings, Plain, Unmounted

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
31	04 DEC 1967	00-998-5055	13209 ( BEARING, PLAIN, ROD END )

Drawings & Photos | NSN 3120-00-998-5055

Part Number	Request Date	QTY	Origin	SBA
3120-00-998-5055	2017-10-276	11	DIBBS
3120-00-998-5055	2014-02-44	2	US

Cross Reference | NSN 3120-00-998-5055

Part Number	Cage Code	Manufacturer
12K3253-7	81755	LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS
177037	09455	RBC TRANSPORT DYNAMICS CORP. DIV RBC TRANSPORT DYNAMICS
ADNE4-55	15860	NEW HAMPSHIRE BALL BEARINGS, INC. DBA ASTRO DIVISION
ART4E20	50294	NEW HAMPSHIRE BALL BEARINGS, INC. DBA NHBB
C631-4	81755	LOCKHEED MARTIN CORPORATION DBA LOCKHEED MARTIN AERONAUTICS
DREM-4-187-1	81376	RBC SOUTHWEST PRODUCTS, INC.
DREM4-187	81376	RBC SOUTHWEST PRODUCTS, INC.
FFM4H	77896	REXNORD INDUSTRIES, LLC DIV BEARING OPERATION
MKR-4DA	73134	ROLLER BEARING COMPANY OF AMERICA, INC.
MKV4DA	73134	ROLLER BEARING COMPANY OF AMERICA, INC.
TFM4H	77896	REXNORD INDUSTRIES, LLC DIV BEARING OPERATION
TFM4K	77896	REXNORD INDUSTRIES, LLC DIV BEARING OPERATION
TFM4W	77896	REXNORD INDUSTRIES, LLC DIV BEARING OPERATION

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Related Products | NSN 3120-00-998-5055

3120-00-998-5057, 3120-00-998-5430, 3120-00-998-6000, 3120-00-998-6202, 3120-00-998-6743

Technical Data | NSN 3120-00-998-5055

Characteristic	Specifications
MATERIAL	STEEL COMP 440C INNER MEMBER STEEL CORROSION RESISTING RACE INSERT PLASTIC POLYTETRAFLUOROETHYLENE RACE LINER STEEL COMP 630 ROD END BODY
HARDNESS RATING	55.0 ROCKWELL C MINIMUM INNER MEMBER 32.0 ROCKWELL C MINIMUM ROD END BODY
SURFACE TREATMENT	CADMIUM ROD END BODY
STYLE DESIGNATOR	6 BALL TYPE
OVERALL LENGTH	1.9520 INCHES NOMINAL
BORE DIAMETER	0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM
OUTER MEMBER OUTSIDE DIAMETER	0.7710 INCHES MINIMUM AND 0.8160 INCHES MAXIMUM
BORE CENTER TO SHANK END DISTANCE	1.5520 INCHES MINIMUM AND 1.5720 INCHES MAXIMUM
OUTER MEMBER WIDTH	0.2760 INCHES MINIMUM AND 0.2860 INCHES MAXIMUM
INNER MEMBER WIDTH	0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM
STATIC RADIAL LOAD RATING	4270 POUNDS
SHANK STYLE	1 EXTERNALLY THREADED
SHANK THREAD LENGTH	1.0000 INCHES NOMINAL
THREAD SERIES DESIGNATOR	UNF
THREAD DIAMETER	0.312 INCHES NOMINAL
THREAD QUANTITY PER INCH	24
THREAD CLASS	3A
THREAD DIRECTION	RIGHT-HAND
SPECIAL FEATURES	RACE TYPE CONSTRUCTION OPTIONAL,REQUIRES MAGNETIC OR PENETRANT INSPECTION AS APPLICABLE,NAS 559 KEYWAY IN SHANK
MANUFACTURERS CODE	81755
MFR SOURCE CONTROLLING REFERENCE	C631-4

Restrictions/Controls & Freight Information | NSN 3120-00-998-5055

Restrictions
Freight

Category	Code	Description
Shelf-Life Code:	0	Nondeteriorative
Hazardous Material Indicator Code	N	There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:	A	Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:	U	UNCLASSIFIED
Precious Metals Indicator Code:	A	Item does not contain precious metal
Criticality Code:	X	The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Automatic Data Processing Equipment:	0	Represents items with no ADP components. NOTE: Codes 1 through 6 are only to be used when the item is Automatic Data Processing Equipment (ADPE) in its entirety and is limited to the type meeting only one of the definitions for codes 1 through 6. (See code 9)

Category	Code	Description
NMF Description	114850	BEARING/BUSHING O/T BALL/ROLLER I/S
Less than car load rating
Less than truck load rating	Q	70.0
Water commodity Code	742	unknown
Originating Activity Code	KZ	Defense Supply Center Philadelphia Philadelphia, PA 19101
Air Dimension Code	A	Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity	V	Vehicles, machinery, shop and warehouse equipment and supplies, including special tools and equipment, ground servicing and special purpose vehicles, marine equipment and supplies, repair and maintenance parts for the above.
Air Special Handling	Z	No special handling required.
Special Handling Code	9	unknonwn
HAZMAT
Type of Cargo	Z	No special type of cargo code applicable

Management | NSN 3120-00-998-5055

Air Force

Category	Code	Description
Budget Code	9	General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors.
Fund Code	SF	Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Price Validation	V	The current standard price has been validated. The item has been analyzed in conjunction with the Zero Overpricing Program and is in the accepted price range. The item was procured under open competition and under the competitive arena the price is considered fair and reasonable. ZOP or Standard price challenges are permissible but must be supported by adequate justification.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DF	Department of the Air Force
Service Organization	F	U.S. Air Force
Reparability	N	Stock Fund (except Munitions)
Acquisition Advice Codes	Z	INSURANCE/NUMERIC STOCKAGE OBJECTIVE ITEM # Items which may be required occasionally or intermittently, and prudence requires that a nominal quantity of materiel be stocked due to the essentiality or the lead time of the item. 1. The item is centrally managed, stocked, and issued. 2. Requisitions will be submitted in accordance with IMM/Service requisitioning procedures.
Controlled Item Code	U	UNCLASSIFIED
Shelf Life Code	0	Nondeteriorative
Purchasing	QTY UOM	1 EA : Each