2920-01-110-4785

Find complete technical information, availability, and procurement data for: 2920-01-110-4785
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2920 Nonaircraft Engine Electrical System Components

National Stock Number

2920-01-110-4785

Item Name Code

17311

Assigment Date

04/01/1981 (45 years ago)

A replaceable item designed to provide a stationary seating surface for a mating, moveable item such as a valve disk or the like. The body may have a flange of various shapes. For diesel and gasoline reciprocating engines, see insert, engine valve seat.

0.620 inches nominal unthreaded portion length, voltage regulator furnished items, right-hand thread direction, 0.625 inches nominal second step diameter, 0.480 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: 0.480 inches nominal
Furnished Items: voltage regulator
Second Step Diameter: 0.625 inches nominal
Unthreaded Portion Length: 0.620 inches nominal
Mounting Hole Thread Direction: right-hand
Mounting Style: flange mtd w/two mtg holes, top hole threaded
Pilot Height: 0.550 inches nominal
Submersibility: nonsubmersible
Shaft Rotation Direction: clockwise
Thread Diameter: 0.625 inches nominal
Ground Polarity Type: negative
Maximum Output Current Rating In Amps: 16.0
Grounding Method: external
Shaft Drive End Style: straight shaft end, threaded
Distance Between Shaft Center And Bottom Mounting Hole Center: 3.430 inches nominal
Distance Between Shaft Center And Top Mounting Hole Center: 4.220 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
Bottom Mounting Hole Diameter: 0.380 inches nominal
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: 18
Mounting Hole Thread Class: 2b
Thread Quantity Per Inch: 18
Voltage In Volts: 24.0

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
10-221	Engine Accessory Generator
8TA3025C	Engine Accessory Generator
AT56247	Engine Accessory Generator
TY6608	Engine Accessory Generator

FAQs

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

What is the FSCG of the NSN 2920-01-110-4785?

The FSCG of the NSN 2920-01-110-4785 is 2920

Does the NSN 2920-01-110-4785 have a Schedule B code assigned?

Yes, the Schedule B code is 8511500000

Does NSN 2920-01-110-4785 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 2920-01-110-4785 contain precious materials?

Item does not contain precious metal.

Does NSN 2920-01-110-4785 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 2920-01-110-4785 was assigned to the Federal Catalog?

It was assigned 45 years ago, on Wed, Apr 1, 1981