2990-00-316-4901

Description: Exhaust Muffler

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Quality Assurance

We are commited to quality and satisfaction as a certified supplier in the aerospace and military industries.

  • Certificate of Conformity
  • QC Inspection prior to shipping
  • On time delivery
  • International Shipping Available
  • Friendly service to back every order
MILSPEC: Nonaircraft Miscellaneous Engine Accessories

 Export Restrictions

Any part(s) quoted or sold by MilSpec.parts and re-sold (to a third party) CANNOT be sold to a USA embargoed country, company, entity, or person(s). Depending on the ECCN, these commodities may require export license or exception. Diversion contrary to U.S. law is prohibited. Unless otherwise noted, this sale, order or quote may include Munitions List Items (MLI) or Commerce Controlled List Items (CCLI). MLI/CCLI property is controlled by the US Government and in many cases cannot be transferred (exported, sold or given) to a foreign country, a non-US Citizen/National or a non- Permanent US Resident without a valid State/Commerce Department export authorization. It is the responsibility of (the Purchaser) to determine what the applicable requirements may be, to obtain all necessary authorizations, licenses or approvals and are subject to both review and acceptance by MilSpec.parts. The use, disposition, export and re-export of the property covered or included in this sale, order or quote is subject to the provisions of law referenced in End-Use Certificate DLA form 1822, DEC 2001, including, but not limited to, the Arms Export Control Act (22 USC 2751 et seq.); Export Administration Act of 1979 (50 USC App. 2401 et seq.) as contained under Executive Order 12924; International Traffic in Arms Regulations (22 CFR 120 et seq.); Export Administration Regulations (15 CFR 730 et seq.); Foreign Assets Control Regulations (31 CFR 500 et seq.) and the Espionage Act (18 USC 793 et seq.)

2990-00-316-4901 Properties

  • NSN:
    2990-00-316-4901
  • Description:
    Exhaust Muffler
  • Shelf Life:
    N/A
  • DEMIL:
    NO
  • UOM:
    1 EA
  • Overall Length:
    81.688 inches
  • Inlet Connection Type:
    Unthreaded single inlet
  • Overall Diameter:
    39.688 inches
  • Outlet Inside Diameter:
    13.625 inches
  • Design Type:
    Wet
  • Coolant Type:
    Water
  • Muffler Design:
    Straight through
  • Body Shape:
    Round
  • Operating Position:
    Horizontal
  • Inlet Location:
    Located 24-1/2 in. From center to flat end of muffler on left side looking aft
  • Inlet Projection Length:
    24.000 inches
  • Inlet Flange Shape:
    Round
  • Inlet Flange Mounting Provision And Quantity:
    19 holes
  • Inlet Flange Mounting Hole Diameter:
    1.000 inches
  • Inlet Flange Mounting Provision Spacing:
    17-3/8 in. Diameter bolt circle
  • Inlet Outside Diameter:
    19.125 inches
  • Inlet Inside Diameter:
    13.625 inches
  • Outlet Connection Type:
    Unthreaded single inlet
  • Outlet Location:
    34-9/16 in. From center line of inlet to center line of outlet on left side looking aft
  • Outlet Projection Length:
    24.000 inches
  • Outlet Flange Shape:
    Round
  • Outlet Flange Mounting Provision And Quantity:
    19 studs
  • Outlet Flange Mounting Hole Diameter:
    1.000 inches
  • Outlet Flange Mounting Provision Spacing:
    17-3/8 in. Diameter bolt circle
  • Outlet Outside Diameter:
    19.125 inches
  • Water Inlet Connection Type:
    Unthreaded
  • Water Inlet Location:
    Center located 11 in. From center line of exhaust inlet
  • Water Inlet Projection Length:
    24.063 inches
  • Water Inlet Flange Shape:
    Round
  • Water Inlet Flange Bolt Hole Spacing:
    9-1/2 in. Diameter bolt circle
  • Water Inlet Flange Bolt Hole Quantity:
    8
  • Water Inlet Flange Bolt Hole Diameter:
    0.875 inches
  • Water Inlet Outside Diameter:
    11.000 inches
  • Water Inlet Inside Diameter:
    6.000 inches
  • Water Outlet Connection Type:
    Flange
  • Water Outlet Quantity:
    1
  • Water Outlet Location:
    Near exhaust outlet toward center of muffler
  • Water Outlet Projection Length:
    24.063 inches
  • Water Outlet Flange Shape:
    Square
  • Water Outlet Flange Bolt Circle Diameter:
    9.500 inches
  • Water Outlet Flange Bolt Hole Quantity:
    8
  • Water Outlet Flange Bolt Hole Diameter:
    0.875 inches
  • Water Outlet Outside Diameter:
    11.000 inches
  • Water Outlet Inside Diameter:
    6.000 inches
  • Hand Hole Quantity:
    2
  • Material:
    Nickel-copper, mil-n-894 or steel, mil-s-853
  • Material:
    Nickel-copper, mil-n-894 or steel, mil-s-853
  • Surface Treatment:
    Porcelain enamel
  • Reference Number Differentiating Characteristics:
    Port
Manufacturers and Part Numbers
Part Number
Brand
D1855PC1T040
Westcott Snyder Mfg Corp
20-3D1855P
Westcott Snyder Mfg Corp
D1855
Westcott Snyder Mfg Corp
E1866PC20-3P
Westcott Snyder Mfg Corp
Major Organizational Entities (MOE)
Entity
MOE Code
MOE Rule
PICA
DSOR
User:
REPUBLIC OF KOREA Republic of Korea
MOE_CD:
ZH
MOE_RL:
ZH01
PICA:
ZH
DSOR:
Part Identification
INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
10849
FIIG:
T135-C
Concept No.:
1
App. Key:
CA
Cond. Code:
2
Status:
A
Material and Special Handling
Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
A
ESD:
ESD:
MMAC:
---
CRITL:
X
Hazmat (HMIC): N
Indicates there is no data in the hmirs and the nsn is in a fsc not generally suspected of containing hazardous materials.
Precious Metals (PMIC): A
Item does not contain precious metal.
Criticality (CRITL): X
The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application.
Packaging and Dimensions
Package Size
Package Weight
Part Weight
Part Dimensions (approx.)
Pack Size:
88.0 X 50.0 X 62.0
Pack Weight:
802.0000lbs
Item Weight:
--
Item Dim:
--
Container
OPI
SPI No.
SPI Rev.
Container:
MA
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg.
LVL A
LVL B
LVL C
SPC Mkg.:
00
LVL A:
F
LVL B:
LVL C:
CUSH
MOP
CATEG.
PRESS MAT
CUSH:
AA
MOP:
AE
CATEG.:
ZZZZ
PRESS MAT:
00
WRAP MAT
ICQ
THK
TOS
UCL
WRAP MAT:
00
ICQ:
000
THK:
X
TOS:
A
UCL:
A
Packaging Code Definitions
LVL A Code (LVL_A):F
Packing is not required. the unit container shall also serve as the shipping container. closure, sealing and reinforcement shall be in accordance with applicable specification for shipping container.
LVL B Code (LVL_B):
Procedure Indicator Code (OPI): M
All packaging data is mandatory for compliance and no substitutions are permitted. fast packs should be included in this category.
Special Markings Code (SPC MKG): 00
No special marking.
Method of Preservation (MOP): AE
Seal or plug all openings and preserve by method 10.
Cushion Material (CUSH): AA
Preservation Material (PRESS MAT): 00
No requirement.