2920-00-127-4680

Find complete technical information, availability, and procurement data for: 2920-00-127-4680
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2920 Nonaircraft Engine Electrical System Components

National Stock Number

2920-00-127-4680

Item Name Code

17311

Assigment Date

12/29/1972 (53 years ago)

"a generator primarily designed to be mounted on an internal combustion engine, and to be driven by the engine to keep the battery in a charged condition. May also supply current for the engine ignition system and/or electrical equipment which is connected to the battery circuit. Includes alternating current generators designed for use with a rectifier. Excludes:the major generator of "generating sets". For generators specifically designed for aircraft use and not mounted on the engine, see generator, direct current."

lockwasher and nut and woodruff key furnished items, 0.156 inches nominal keyway width, right-hand thread direction, 0.874 inches nominal second step diameter, 0.790 inches nominal thread length

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Thread Direction: right-hand
Thread Length: 0.790 inches nominal
Furnished Items: lockwasher and nut and woodruff key
Second Step Diameter: 0.874 inches nominal
Keyway Width: 0.156 inches nominal
Unthreaded Portion Length: 1.320 inches nominal
Mounting Hole Thread Direction: right-hand
Mounting Style: bracket mtd w/three mtg holes, top hole threaded
Environmental Protection: corrosion resistant
Keyway Length: 0.750 inches nominal
Submersibility: nonsubmersible
Shaft Rotation Direction: clockwise or counterclockwise
Distance From End To Keyway Center: 2.110 inches nominal
Thread Diameter: 0.625 inches nominal
Ground Polarity Type: negative
Rectifier Location: integral
Shaft Drive End Style: straight shaft end, threaded, w/keyway
Distance Between Shaft Center And Bottom Mounting Hole Center: 3.750 inches nominal
Distance Between Shaft Center And Top Mounting Hole Center: 3.750 inches nominal
Angular Deviation Of First Hole From Top Center In Deg: 0.0
Angular Deviation Of Second Hole From First Hole In Deg: 180.0
Distance Between Inside Surfaces Of Hinge Bracket: 7.180 inches minimum and 7.260 inches maximum
Distance Between Outside Surfaces Of Hinge Bracket: 8.480 inches minimum and 8.560 inches maximum
Bottom Mounting Hole Diameter: 0.451 inches minimum and 0.463 inches maximum
Thread Series: unf
Thread Class: 2a
Mounting Hole Thread Series Designator: unc
Mounting Hole Thread Diameter: 0.375 inches nominal
Mounting Hole Thread Quantity Per Inch: 16
Mounting Hole Thread Class: 2b
Thread Quantity Per Inch: 18
Voltage In Volts: 12.0

Related Parts

This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:

Part Number	Name
1117059	Engine Accessory Generator
412969C1	Engine Accessory Generator
412969C91	Engine Accessory Generator

FAQs

Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.

What is the FSCG of the NSN 2920-00-127-4680?

The FSCG of the NSN 2920-00-127-4680 is 2920

Does the NSN 2920-00-127-4680 have a Schedule B code assigned?

Yes, the Schedule B code is 8511500000

Does NSN 2920-00-127-4680 require demilitarization?

Items subject to the export administration regulations (ear) in parts 730-774 of title 15, code of federal regulations (cfr) (ccli or ear99) and determined by dod to present a low risk when released out of dod control. No demil, mut, or end use certificate is required. May require an export licensefrom doc.

Does NSN 2920-00-127-4680 contain precious materials?

Precious metal content is unknown

Does NSN 2920-00-127-4680 contain hazardous materials?

Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.

When the NSN 2920-00-127-4680 was assigned to the Federal Catalog?

It was assigned 53 years ago, on Fri, Dec 29, 1972