National Stock number : 2990-00-018-6332
Exhaust Muffler
| Available Quantity | 443 |
| Available Conditions | AR NS NE SV |
| Classification | Nonaircraft Miscellaneous Engine Accessories - FSC 2990 |
| Schedule B | 8708925000 |
| Stock Check Date | 02/01/2026 |
Part-Number.info Quality System
- ISO 9001:2015 + AS9120B Certifed
- Audited supply chain
- Counterfeit Parts Prevention
- 100% Product Inspections
- 7 Year Record Retention
- HAZMAT Certified
- ITAR and DDTC Registered
Product Properties
Description
Exhaust Muffler
Overall Length
11.875in. ⁓11-7/8"
Inlet Connection Type
threaded
Inlet Thread Direction
RIGHT-Hand
Overall Diameter
3.250in. ⁓3-1/4"
Design Type
dry
Coolant Type
air
Muffler Design
straight through w/baffle
Baffle Quantity
1
Tube Quantity
1
Body Shape
round
Operating Position
any acceptable
Inlet Location
centered on end of body
Inlet Projection Length
2.000in.
Inlet Thread Size
1-11-1/2
Inlet Thread Series Designator
npt
Inlet Thread Location
external
Outlet Connection Type
unthreaded
Outlet Location
centered on end of body
Outlet Projection Length
2.250in.
Outlet Outside Diameter
1.375in.
Special Features
0.188 in. dia drain hole
Material
steel
Material
steel
Surface Treatment
aluminum alloy
Surface Treatment
aluminized
