2990-01-061-5710

Find complete technical information, availability, and procurement data for: 2990-01-061-5710
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Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-01-061-5710

Item Name Code

10849

Assigment Date

06/24/1978 (48 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.

unthreaded single inlet inlet connection type, 2.000 inches nominal 1st outlet2.000 inches nominal outlet inside diameter, 4.750 inches nominal overall diameter, 17.000 inches nominal overall length, dry design type

Product Characteristics

Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.

Overall Length: 17.000 inches nominal
Inlet Connection Type: unthreaded single inlet
Overall Diameter: 4.750 inches nominal
Outlet Inside Diameter: 2.000 inches nominal 1st outlet2.000 inches nominal
Design Type: dry
Coolant Type: air
Muffler Design: baffle
Baffle Quantity: 2
Body Shape: round
Operating Position: horizontal
Inlet Location: centrally located in end section of body single inlet
Inlet Projection Length: 1.812 inches nominal single inlet1.812 inches nominal
Inlet Outside Diameter: 2.156 inches nominal single inlet2.156 inches nominal
Inlet Inside Diameter: 2.000 inches nominal single inlet2.000 inches nominal
Outlet Location: centrally located in end section of body 1st outlet
Outlet Projection Length: 1.812 inches nominal 1st outlet1.812 inches nominal
Outlet Outside Diameter: 2.156 inches nominal 1st outlet2.156 inches nominal
Special Features: includes clamp
Material: steel location not otherwise specified
Surface Treatment: aluminum alloy

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
00519102-0018	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-01-061-5710?

The FSCG of the NSN 2990-01-061-5710 is 2990

Does the NSN 2990-01-061-5710 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-01-061-5710 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 2990-01-061-5710 contain precious materials?

Precious metal content is unknown

Does NSN 2990-01-061-5710 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 2990-01-061-5710 was assigned to the Federal Catalog?

It was assigned 48 years ago, on Sat, Jun 24, 1978