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

Piston Ring

Model / MPN: 859989-44 | NSN: 2805-00-009-0428
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
2805-00-009-0428
Sold in multiples of
1 EA
DEMIL
NO
Cross Sectional Shape
Plain rectangular, straight face
Ring Style
Concentric
Radial Wall Thickness
Between 0.1250 inches and 0.1350 inches
Overall Width
Between 0.0440 inches and 0.0450 inches
Standard Bore Diameter
1.400 inches
Joint Style
Vertical joint
Material
Stainless steel
Material Specification
-1l-s-25043 military specification 1st material response and ams 5528 military specification 2nd material response
Fsc Application Data
Turbines, aircraft cooling
Solicitations
Solicitation Description Qty UOM Close Date
SPE7L118T2058 Ring, Piston 80 EA 12/11/2017
SPE7L519T1242 Ring, Piston 58 EA 12/24/2018
SPE7L519T1370 Ring, Piston 60 EA 01/07/2019

Pricing and Availability

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859989-44 Cross Reference
  • 859989-44
  • 859989-44