86172-M

View detailed technical data, stock status, and sourcing information for: 86172-M

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86172-M
Federal Supply Group
Engine Accessories
National Stock Number
2990-00-905-8122
Item Name Code
10849
Assigment Date
01/01/1960 (66 years ago)

A replaceable device designed to remove solid particles from fluids ranging in density from heavy liquids to gases. The removal of particles is accomplished by porous material (metallic or non-metallic), stacked disks, wound wire, or the like, constructed so the fluid can flow through the device while the solid particles are retained. It may be designed to fit into a filter, fluid (or similar cavity), or it may have an integral outer casing and mounting facilities and be designed to connect directly to an engine, compressor, or the like. The degree of removal of particles must be nominally rated at less than 50 microns or absolutely rated at less than 75 microns. Excludes:filter element, air conditioning. See also strainer element, sediment.

right-hand single inlet inlet thread direction, dry design type, threaded single inlet inlet connection type, 18.100 inches nominal overall length, 6.120 inches nominal overall diameter

Product Characteristics

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

Overall Length
18.100 inches nominal
Inlet Connection Type
threaded single inlet
Inlet Thread Direction
right-hand single inlet
Overall Diameter
6.120 inches nominal
Design Type
dry
Coolant Type
air
Muffler Design
straight through
Baffle Quantity
1
Tube Quantity
1
Body Shape
round
Operating Position
vertical
Inlet Location
centrally located in end section of body single inlet
Inlet Projection Length
1.200 inches nominal single inlet1.200 inches nominal
Inlet Thread Size
2-1/2-8 single inlet
Inlet Thread Location
external single inlet
Outlet Connection Type
unthreaded 1st outlet
Outlet Location
centrally located in end section of body 1st outlet
Outlet Projection Length
1.900 inches nominal 1st outlet1.900 inches nominal
Outlet Outside Diameter
2.475 inches minimum and 2.495 inches maximum 1st outlet
Special Features
0.120 in. drain hole on exhaust inlet end
Material
steel location not otherwise specified
Surface Treatment
aluminum
Fsc Application Data
engine exhaust system,nonaircraft

Replaces National Stock Numbers

Below is a list of NSNs that have been officially superseded by this NSN:

NSN Name Date
2990-00-237-0040 No Name Available 02/01/1976
2990-00-310-7630 No Name Available 09/04/1968

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
068-0009 Exhaust Muffler
068-9 Exhaust Muffler
41025-P Exhaust Muffler
86172-M Exhaust Muffler
ABT41025 Exhaust Muffler
MFM06-0005 Exhaust Muffler
T-41025 Exhaust Muffler

FAQs

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

What is the FSCG of the NSN 2990-00-905-8122?
The FSCG of the NSN 2990-00-905-8122 is 2990
Does the NSN 2990-00-905-8122 have a Schedule B code assigned?
Yes, the Schedule B code is 8708925000
Does NSN 2990-00-905-8122 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 2990-00-905-8122 contain precious materials?
Precious metal content is unknown
Does NSN 2990-00-905-8122 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 2990-00-905-8122 was assigned to the Federal Catalog?
It was assigned 66 years ago, on Fri, Jan 1, 1960

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