2990-00-727-4666

Find complete technical information, availability, and procurement data for: 2990-00-727-4666
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-727-4666

Item Name Code

16116

Assigment Date

01/01/1963 (63 years ago)

A transformer consisting of one or more primary winding(s) and one or more secondary winding(s). It may be designed for direct connection to an alternating current source for purposes of changing the secondary volts and amperes or designed to eliminate metallic interconnection between circuits in an overall one to one voltage ratio, with or without additional output windings, or items designed to automatically maintain a constant output voltage within specified limits under varying input or load conditions. Also includes items having a provision for mechanically changing the turns ratio or inductive coupling in progressive increments by means of voltage taps, ratio adjuster, or devices oe similar design. For transformers having winding(s) common to both input and output circuits, see transformer (1), power, autotransformer. Excludes:transformer (1), pulse.

3.625 inches standard bore diameter, compression ring,8b310,11083,3,oil ring,3b6806,11083,1 ring set component parts, 1 piston accommodation quantity

Product Characteristics

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

Standard Bore Diameter: 3.625 inches
Piston Accommodation Quantity: 1
Ring Set Component Parts: compression ring,8b310,11083,3,oil ring,3b6806,11083,1

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2990-00-554-2208	No Name Available	06/17/1967

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
9H1384	Piston Ring Set
IPD9H1384	Piston Ring Set

FAQs

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

What is the FSCG of the NSN 2990-00-727-4666?

The FSCG of the NSN 2990-00-727-4666 is 2990

Does the NSN 2990-00-727-4666 have a Schedule B code assigned?

Yes, the Schedule B code is 8412909080

Does NSN 2990-00-727-4666 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 2990-00-727-4666 contain precious materials?

Precious metal content is unknown

Does NSN 2990-00-727-4666 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 2990-00-727-4666 was assigned to the Federal Catalog?

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