DE56972

View detailed technical data, stock status, and sourcing information for: DE56972
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2920 Nonaircraft Engine Electrical System Components

National Stock Number

2920-00-640-7485

Item Name Code

17311

Assigment Date

01/01/1963 (63 years ago)

cutout relay furnished items, 0.125 inches nominal keyway width, 0.668 inches minimum and 0.669 inches maximum second step diameter, right-hand thread direction, 0.719 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: 0.719 inches nominal
Furnished Items: cutout relay
Second Step Diameter: 0.668 inches minimum and 0.669 inches maximum
Keyway Width: 0.125 inches nominal
Unthreaded Portion Length: 1.250 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: 0.625 inches nominal
Submersibility: nonsubmersible
Shaft Rotation Direction: clockwise
Distance From End To Keyway Center: 1.344 inches nominal
Thread Diameter: 0.500 inches nominal
Maximum Output Current Rating In Amps: 11.0
Grounding Method: external
Shaft Drive End Style: straight shaft end, threaded, w/keyway
Cotter Pin Hole: included
Distance Between Shaft Center And Bottom Mounting Hole Center: 3.062 inches nominal
Distance Between Shaft Center And Top Mounting Hole Center: 3.062 inches nominal
Angular Deviation Of First Hole From Top Center In Deg: 206.0
Angular Deviation Of Second Hole From First Hole In Deg: 154.0
Distance Between Inside Surfaces Of Hinge Bracket: 6.118 inches minimum and 6.136 inches maximum
Distance Between Outside Surfaces Of Hinge Bracket: 6.830 inches minimum and 6.832 inches maximum
Bottom Mounting Hole Diameter: 0.316 inches minimum and 0.324 inches maximum
Thread Series: unf
Thread Class: 2a
Mounting Hole Thread Series Designator: unc
Mounting Hole Thread Diameter: 0.312 inches nominal
Mounting Hole Thread Quantity Per Inch: 20
Mounting Hole Thread Class: 2b
Thread Quantity Per Inch: 20
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
1101770	Engine Accessory Generator
DE56972	Engine Accessory Generator

FAQs

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

What is the FSCG of the NSN 2920-00-640-7485?

The FSCG of the NSN 2920-00-640-7485 is 2920

Does the NSN 2920-00-640-7485 have a Schedule B code assigned?

Yes, the Schedule B code is 8511500000

Does NSN 2920-00-640-7485 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 2920-00-640-7485 contain precious materials?

Precious metal content is unknown

Does NSN 2920-00-640-7485 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 2920-00-640-7485 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963