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Worldwide distributor of NSN parts and consumables located in the USA.

Piston Ring

Model / MPN: 143925 | NSN: 4420-00-232-6985
ITAR Registered seal

A circular, single or multipiece item, metallic or nonmetallic in composition, designed to be fitted in a circumferential groove in a piston and to spring outward against the cylinder wall to function as a seal or wiper. It is supplied in various cross-sectional shapes and is cut through at one point to allow for installation in the piston ring groove. It may include an expander. Excludes packing, preformed; retainer, oil seal; retainer, packing; ring, retaining; ring wiper; and seal ring, metal.

Product Details
NATO Stock Number
4420-00-232-6985
Sold in multiples of
1 EA
DEMIL
NO
Cross Sectional Shape
Plain rectangular, straight face
Ring Style
Concentric
Radial Wall Thickness
Between 0.3800 inches and 0.3900 inches
Overall Width
Between 0.2470 inches and 0.2490 inches
Standard Bore Diameter
12.000 inches
Bore Diameter Oversize
0.005 inches
Joint Style
Vertical joint
Material
Nickel
Material Specification
K68, koppers co inc mfr ref single material response
Test Data Document
13344-143925 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc.; excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Fsc Application Data
Deaerating heater

Pricing and Availability

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143925 Cross Reference
  • 143925PC19
  • 143925-19