7ADD5APC21

View detailed technical data, stock status, and sourcing information for: 7ADD5APC21
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Federal Supply Group

Engines, Turbines, and Components

Federal Supply Classification

2815 Diesel Engines and Components

National Stock Number

2815-00-388-2709

Item Name Code

11459

Assigment Date

01/01/1963 (63 years ago)

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.

2815-00-388-2709, piston ring

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN	Name	Date
2815-00-273-0548	No Name Available	08/12/1968

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
10ADE5APC27	Piston Ring
13ADD5APC27	Piston Ring
15ADD5APC27	Piston Ring
7ADD5APC21	Piston Ring
ADD5705B	Piston Ring
ADD5705D	Piston Ring
ADE5705B	Piston Ring
ADE5705C	Piston Ring
CADD5705B	Piston Ring
MADG5APC27	Piston Ring
MADG5BPC21	Piston Ring
MADG5BPC27	Piston Ring

FAQs

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

What is the FSCG of the NSN 2815-00-388-2709?

The FSCG of the NSN 2815-00-388-2709 is 2815

Does the NSN 2815-00-388-2709 have a Schedule B code assigned?

Yes, the Schedule B code is 8409998000

Does NSN 2815-00-388-2709 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 2815-00-388-2709 contain precious materials?

Precious metal content is unknown

Does NSN 2815-00-388-2709 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 2815-00-388-2709 was assigned to the Federal Catalog?

It was assigned 63 years ago, on Tue, Jan 1, 1963