2990-00-277-3634

Find complete technical information, availability, and procurement data for: 2990-00-277-3634
DODParts.com distributes related products varnishes dopes paints, aircraft parts and consumables, electrical parts, fittings and other components for the aerospace and defense industries. Submit the short price quote form for NSN 2990-00-277-3634 to receive an up to date pricing and availability quote by email.

Federal Supply Group

Engine Accessories

Federal Supply Classification

2990 Nonaircraft Miscellaneous Engine Accessories

National Stock Number

2990-00-277-3634

Item Name Code

10849

Assigment Date

01/01/1963 (63 years ago)

water coolant type, wet design type, 12.875 inches nominal overall diameter, flange single inlet inlet connection type, 23.000 inches nominal overall length

Product Characteristics

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

Overall Length: 23.000 inches nominal
Inlet Connection Type: flange single inlet
Overall Diameter: 12.875 inches nominal
Design Type: wet
Coolant Type: water
Muffler Design: multipass
Tube Quantity: 3
Body Shape: round
Operating Position: horizontal
Inlet Location: 3-3/4 in. c to c from horizontal center line single inlet
Inlet Projection Length: 3.000 inches nominal single inlet3.000 inches nominal
Inlet Flange Shape: round single inlet
Inlet Flange Mounting Provision And Quantity: 8 holes single inlet8 holes
Inlet Flange Mounting Hole Diameter: 0.750 inches nominal single inlet0.750 inches nominal
Inlet Flange Mounting Provision Spacing: 7-1/2 in. dia bolt circle single inlet
Outlet Connection Type: flange 1st outlet
Outlet Location: 4-5/16 in. c to c from horizontal center line 1st outlet
Outlet Projection Length: 3.000 inches nominal 1st outlet3.000 inches nominal
Outlet Flange Shape: round 1st outlet
Outlet Flange Mounting Provision And Quantity: 8 holes 1st outlet8 holes
Outlet Flange Mounting Hole Diameter: 0.750 inches nominal 1st outlet0.750 inches nominal
Outlet Flange Mounting Provision Spacing: 7-1/2 in. dia bolt circle 1st outlet
Water Inlet Connection Type: flange
Water Inlet Location: directly above exhaust inlet
Water Inlet Projection Length: 0.938 inches minimum and 1.438 inches maximum
Water Inlet Flange Shape: round
Water Inlet Flange Bolt Hole Spacing: 6-9/16 in. dia bolt circle
Water Inlet Flange Bolt Hole Quantity: 8
Water Inlet Flange Bolt Hole Diameter: 0.500 inches nominal
Material: steel location not otherwise specified
Nondefinitive Spec/Std Data: b type
Departure From Cited Designator: abhp,adav,acqw,arnj,arnk,arnl,arnm,arnn,arnt,artf,arth,artj,artk,artl,artm,artn,artt,arwc,arwe,arwf,arwg,arwh,arwj,arwk,arwl

Replaces National Stock Numbers

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

NSN	Name	Date
2990-00-470-3517	No Name Available	06/01/1976

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
E1965	Exhaust Muffler
MILM15337ATYPEB	Exhaust Muffler
MILM15337TYPEB	Exhaust Muffler
MUW2-8-4-9108	Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-277-3634?

The FSCG of the NSN 2990-00-277-3634 is 2990

Does the NSN 2990-00-277-3634 have a Schedule B code assigned?

Yes, the Schedule B code is 8708925000

Does NSN 2990-00-277-3634 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 2990-00-277-3634 contain precious materials?

Item does not contain precious metal.

Does NSN 2990-00-277-3634 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 2990-00-277-3634 was assigned to the Federal Catalog?

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