660108

View detailed technical data, stock status, and sourcing information for: 660108
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2825 Steam Turbines and Components

National Stock Number

2825-01-054-3291

Item Name Code

11459

Assigment Date

01/18/1978 (48 years ago)

An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes:straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.

2825-01-054-3291, piston ring

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
660108	Piston Ring
F8167PC37	Piston Ring

FAQs

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

What is the FSCG of the NSN 2825-01-054-3291?

The FSCG of the NSN 2825-01-054-3291 is 2825

Does the NSN 2825-01-054-3291 have a Schedule B code assigned?

Yes, the Schedule B code is 8406900040

Does NSN 2825-01-054-3291 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 2825-01-054-3291 contain precious materials?

Precious metal content is unknown

Does NSN 2825-01-054-3291 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 2825-01-054-3291 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Wed, Jan 18, 1978