Product Details | IGNITION ADVANCE UNIT

2920-00-040-0498

Part Alternates: GR5221A, 525430, 8666741, 2920-00-040-0498, 00-040-0498, 2920000400498, 000400498

Engine Accessories | Engine Electrical System Components, Nonaircraft

Supply Group (FSG) NSN Assign. NIIN
29 01 JAN 1963 00-040-0498

Cross Reference | NSN 2920-00-040-0498

Part Number Cage Code Manufacturer
525430 02978 L-3 COMMUNICATIONS CORPORATION DBA COMBAT PROPULSION SYSTEMS
8666741 19207 U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM
GR5221A 01843 AMBAC INTERNATIONAL CORPORATION

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Technical Data | NSN 2920-00-040-0498

Characteristic Specifications
GENERAL CHARACTERISTICS ITEM DESCRIPTION INTERNAL INVOLUTE SPLINE DATA'NUMBER OF TEETH 20,DIAMETRAL PITCH 16/20,PRESSURE ANGLE/AT GIVEN PITCH DIAMETER/20 DEGREES,CIRCULAR PITCH 0.1963 IN.,BASE CIRCLE DIAMETER 1.1746 IN.,CHORDAL SPACE WIDTH 0.0981 IN./MACHINE TO 0.981-0.1002/PERMISSABLE BACKLASH 0.002 TO 0.006 IN. WHEN MESHING WITH MATING SPLINE,MAXIMUM TOOTH SPACING ERROR REFERENCED TO PITCH LINE 0.003 IN. BETWEEN ADJACENT TEETH,0.0007 IN. CUMULATIVE INDEX,TEETH TO BE PARALLEL WITH AXIS WITHIN 0.0002 IN. PER IN. OF LENGTH,MAXIMUM DIM CIR SPACE WIDTH 0.1003 IN.,MIN DIM CIR SPACE WIDTH 0.0982 IN.,MIN EFF CIR SPACE WIDTH/WITH GAGE/0.0975 IN.,1.1094-1.1012 IN. BETWEEN 0.10497 IN. DIA PINS,AMERICAN BOSCH PART NUMBER GR-5221-A FSCM 01843

Restrictions/Controls & Freight Information | NSN 2920-00-040-0498

Category Code Description
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Precious Metals Indicator Code:UPrecious 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 062120 GENERATORS/MOTORS/PARTS NOI
Less than car load rating Q 70
Less than truck load rating W Rating Variable
Water commodity Code 590 unknown
Originating Activity Code XX
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