NSN 3020-00-877-0290 A32912, A3291-2, 00-877-0290

3020-00-877-0290 A gear with teeth on its outer surface in the form of helical threads.

Part Alternates: A32912, A3291-2, 3020-00-877-0290, 00-877-0290, 3020008770290, 008770290

Supply Group (FSG)	NSN Assign.	NIIN	Item Name Code (INC)
30	14 AUG 1967	00-877-0290	05467 ( GEAR, WORM )

Part Number	Cage Code	Manufacturer
A3291-2	03538	LOCKHEED MARTIN CORPORATION DIV MST
A3291-2	54497	MARTIN MARIETTA TECHNOLOGIES INC SUB OF MARTIN MARIETTA CORP

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NSNs for Compare ( up to 4 ): Add 3020-00-877-0290

Compare

3020-00-877-0300, 3020-00-877-0308, 3020-00-877-0329, 3020-00-877-0373, 3020-00-877-0429

Characteristic	Specifications
MATERIAL	STEEL CORROSION RESISTING OVERALL
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD FORM QUANTITY	4
THREAD FORM DIRECTION	RIGHT-HAND
PRESSURE ANGLE	20.0000 DEGREES
HELIX ANGLE	7.0000 DEGREES
STYLE DESIGNATOR	2 PROTRUDING HUB
PITCH DIAMETER	0.5000 INCHES NOMINAL
NOMINAL OUTSIDE DIAMETER	0.531 INCHES
FACE NOMINAL WIDTH	0.750 INCHES
NOMINAL DISTANCE BETWEEN BODY FACE AND PROTRUDING HUB END	0.224 INCHES FIRST END
BORE STYLE	1 PLAIN BOTH ENDS
BORE NOMINAL DIAMETER	0.250 INCHES BOTH ENDS
HUB STYLE DESIGNATOR	5 PINNED FIRST END
HUB NOMINAL DIAMETER	0.432 INCHES FIRST END

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:	U	Precious metal type is unknown
Criticality Code:	X	The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.

Category	Code	Description
NMF Description	197339	WHEELS COG/GEAR/PINION I/S
Less than car load rating
Less than truck load rating	R	65.0
Water commodity Code	593	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

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