2990-01-239-7320

Piston Ring

2990012397320 012397320

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. View more Piston Ring

2990-01-239-7320 RING,PISTON 2990012397320 012397320

Managed by United States
NSN Created on 4 Sep 1986
Data Last Changed
November 2023
NATO Update Count
5
NATO Data Quality
2990-01-239-7320 RING,PISTON 2990012397320 012397320 1/1
NSN 2990-01-239-7320 (Generic Image) 1/1

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2990-01-239-7320 Demil Restrictions 2990-01-239-7320

DEMIL: A | DEMILI: | CRITICALITY: | HMIC: N | PMIC: A | EDC: | ADPEC:

2990-01-239-7320 is a Piston Ring This item is considered a low risk when released from the control of the Department of Defense. The item may still be subject to the requirements of the Export Administration Regulations (EAR) and the Code of Federal Regulations (CFR). This item is not suspected to be hazardous. This item does not contain a precious metal.

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