NSN 3120-00-590-7991 MS2178308146, MS21783-08146, ASTM B438-08

Product Details | THRUST WASHER BEARING

3120-00-590-7991 An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also WASHER, FLAT and SPACER, SLEEVE.

Part Alternates: MS2178308146, MS21783-08146, ASTM B438-08 , ASTMB43808, SG818-LU-MMA-010 FIG 7-13-42, SG818LUMMA010FIG71342, SLT5286, SLT528-6, ENCS748200016, ENCS74820-0016, MILB5687, TB814, TT801, T801, 1800288, 1800288-12, 1880028812, 18800288-12, 540269-012, 64A66B22, 73206038, 732-06-038, 733104, 73-3-104, 803-6397421 PC 97, 8036397421PC97, 3120-00-590-7991, 00-590-7991, 3120005907991, 005907991, 180028812, 540269012

Bearings | Bearings, Plain, Unmounted

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
31	31 JAN 1968	00-590-7991	13211 ( BEARING, WASHER, THRUST )

Drawings & Photos | NSN 3120-00-590-7991

Part Number	Request Date	QTY	Origin
3120-00-590-7991	2025-02-42	283	DIBBS
3120-00-590-7991	2021-10-284	1	United States
MILB5687	2011-05-124	230	United States
3120-00-590-7991	2011-05-123	157	DIBBS
MILB5687	2010-08-216	17	US
MS2178308146	2009-12-345	35	United States
MILB5687	2008-11-319	220	BV
MILB5687	2008-05-136	425	US
3120-00-590-7991	2008-02-32	4	US

Cross Reference | NSN 3120-00-590-7991

Part Number	Cage Code	Manufacturer
1800288	03956	NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NAVAL AND MARINE SYSTEMS
1800288-12	03956	NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NAVAL AND MARINE SYSTEMS
18800288-12	03956	NORTHROP GRUMMAN SYSTEMS CORPORATION DIV NAVAL AND MARINE SYSTEMS
540269-012	12436	BAE SYSTEMS NATIONAL SECURITY SOLUTIONS INC.
64A66B22	10001	NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT
73-3-104	80205	NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES
732-06-038	01205	LOGETRONICS CORPORATION
803-6397421 PC 97	53711	NAVAL SEA SYSTEMS COMMAND
ASTM B438-08	81346	AMERICAN SOCIETY FOR TESTING AND MATERIALS
ENCS74820-0016	96169	ELECTRIC BOAT CORPORATION
MILB5687	81349	MILITARY SPECIFICATIONS PROMULGATED BY MILITARY
MS21783-08146	96906	MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
SG818-LU-MMA-010 FIG 7-13-42	53711	NAVAL SEA SYSTEMS COMMAND
SLT528-6	02254	MASTEN BUNTING EAGLE-PICHER BEARINGS DIV
T801	70417	CHRYSLER CORP AMPLEX DIV
TB814	71041	ALTRA HOLDINGS, INC. DIV BOSTON GEAR
TT801	12204	DAIMLER CHRYSLER
TT801	70417	CHRYSLER CORP AMPLEX DIV
TT801	70901	BEEMER PRECISION INC
TT801	71366	BUNTING BEARINGS CORP
TT801	75292	EAGLE-PICHER INDUSTRIES INC KINGWELL DIV

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Related Products | NSN 3120-00-590-7991

3120-00-590-8442, 3120-00-590-8621, 3120-00-590-8751, 3120-00-590-8755, 3120-00-591-2151

Technical Data | NSN 3120-00-590-7991

Characteristic	Specifications
MATERIAL	COPPER ALLOY OVERALL
STYLE DESIGNATOR	23 ROUND
OUTSIDE DIAMETER	0.8750 INCHES NOMINAL
CORNER SHAPE	SQUARE ALL CORNERS
CROSS-SECTIONAL SHAPE STYLE	35 RECTANGULAR
OVERALL THICKNESS	0.1870 INCHES NOMINAL
CENTER HOLE SHAPE STYLE	42 ROUND
DIAMETER	0.5050 INCHES NOMINAL
SURFACE FINISH	63.0 MICROINCHES LEFT SIDE 63.0 MICROINCHES RIGHT SIDE
LUBRICATION MATERIAL	LUBRICATING OIL
MANUFACTURERS CODE	96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE	MS21783-08146

Restrictions/Controls & Freight Information | NSN 3120-00-590-7991

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	114870	BEARING/BUSHING METAL
Less than car load rating
Less than truck load rating	P	77.5
Water commodity Code	742	unknown
Originating Activity Code	HD	Naval Inventory Control Point Mechanicsburg, PA 17055-0788
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 3120-00-590-7991

Category	Code	Description
Materiel Category and Inventory Manager	T	Industrial Supplies (DLA/GSA Items)
Appropriation and Budget Activity	2	Stock Fund Secondary Items
Management Inventory Segment	2	NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable.
Specific Group/Generic Code	0	Medical Materiel
Weapons Systems/End Item or Homogeneous Group	00	DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item
Accounting Requirements Code	X	Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items.
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DA	Department of the Army
Service Organization	A	U.S. Army
Reparability	Z	This is a nonreparable item. If condemned or economically unserviceable, then dispose at the level authorized replace the item.
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	H EA : Each

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	H EA : Each

Category	Code	Description
Cognizance Codes	9B	Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg
Source of Supply	SMS	Defense Logistics Agency Enterprise Business Systems
Agency	DN	Department of the Navy
Service Organization	N	U.S. Navy
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	H EA : Each