2990-00-797-4633

Find complete technical information, availability, and procurement data for: 2990-00-797-4633

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2990-00-797-4633
Federal Supply Group
Engine Accessories
National Stock Number
2990-00-797-4633
Item Name Code
10850
Assigment Date
01/01/1963 (63 years ago)

An item having internal and/or external machine thread(s) (threads other than pipe or hose series), specifically designed to retain, by means or groove(s), shoulder(s), and the like, packing and/or a packing gland within a stuffing box. See also bushing, machine thread; inverted nut, tube coupling; and nut, tube coupling. Excludes:packing nut, stuffing tube; and use with electrical cable, and locknut, pipe.

4.250 inches nominal overall width, 1.510 inches nominal overall height, flange single inlet inlet connection type, flange 1st outlet inlet connection type, 7.625 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
7.625 inches nominal
Overall Height
1.510 inches nominal
Overall Width
4.250 inches nominal
Inlet Connection Type
flange single inlet
Inlet Connection Type
flange 1st outlet
End Item Identification
2805-00-072-4871; 2805-00-601-5127; 2805-00-714-8553
Outlet Inside Diameter
0.810 inches nominal
Inlet Connection Quantity
2
Muffler Design
baffle
Baffle Quantity
1
Body Shape
rectangular
Operating Position
vertical
Inlet Location
located in flat side of body in-line
Inlet Projection Length
2.719 inches nominal 1st outlet
Inlet Projection Length
2.719 inches nominal single inlet
Inlet Flange Shape
oval 1st outlet
Inlet Flange Shape
oval single inlet
Inlet Flange Mounting Provision And Quantity
2 holes 1st outlet
Inlet Flange Mounting Provision And Quantity
2 holes single inlet
Inlet Flange Mounting Hole Diameter
0.281 inches nominal 1st outlet
Inlet Flange Mounting Hole Diameter
0.281 inches nominal single inlet
Inlet Outside Diameter
0.875 inches nominal 1st outlet
Inlet Outside Diameter
0.875 inches nominal single inlet
Inlet Inside Diameter
0.810 inches nominal 1st outlet
Inlet Inside Diameter
0.810 inches nominal single inlet
Outlet Connection Quantity
1
Outlet Connection Type
flange
Outlet Location
located in end side of body
Outlet Projection Length
1.920 inches nominal
Outlet Flange Shape
oval
Outlet Flange Mounting Provision And Quantity
2 holes
Outlet Flange Mounting Hole Diameter
0.281 inches nominal
Outlet Flange Mounting Provision Spacing
1.500 in. c to c dim of mtg holes
Outlet Outside Diameter
0.875 inches nominal
Material
steel and steel comp 1010 and steel comp 1020
Material Document And Classification
mil-s-4174 mil spec 1st material response and sae 1010 assn std 2nd material response and sae 1020 assn std 3rd material response

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
2990007974633 Exhaust-Intake Muffler
9787E23 Exhaust-Intake Muffler
ERE5420 Exhaust-Intake Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-797-4633?
The FSCG of the NSN 2990-00-797-4633 is 2990
Does the NSN 2990-00-797-4633 have a Schedule B code assigned?
Yes, the Schedule B code is 8708925000
Does NSN 2990-00-797-4633 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 2990-00-797-4633 contain precious materials?
Item does not contain precious metal.
Does NSN 2990-00-797-4633 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 2990-00-797-4633 was assigned to the Federal Catalog?
It was assigned 63 years ago, on Tue, Jan 1, 1963

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