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

Piston Ring

Model / MPN: 3970519 | NSN: 2815-01-585-6785
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
2815-01-585-6785
Sold in multiples of
EA
DEMIL
NO
End Application
Rg-31 mrap
Part Name Assigned By Controlling Agency
Ring, oil piston
Solicitations
Solicitation Description Qty UOM Close Date
SPE7L420T0919 Ring, Piston 51 EA 12/02/2019
SPE7L220T1868 Ring, Piston 20 EA 02/24/2020

Pricing and Availability

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3970519 Cross Reference
  • 4932801