Model: 20312-2

Exhaust-intake Pneumatic Muffler

Special Features:

Air muffler and exhaust diffuser with 40 micron filtration; for use on valve exhaust ports; port size 0.250in.; has 9/16in. Hex flats

Properties:

Overall Length
1.375 inches
Inlet Connection Type
Threaded
Inlet Thread Direction
Right-hand
Overall Diameter
0.250 inches
End Application
Navy weapons code ju, osprey class mhc
Design Type
Dry
Inlet Connection Quantity
1
Coolant Type
Air
Muffler Design
Straight through
Body Shape
Round
Operating Position
Any acceptable
Inlet Location
End
Inlet Thread Location
External
Material
Bronze
Material
Copper alloy
NSN
4330-01-456-0125
Part Number
20312-2
Description
Pneumatic Muffler,exhaust-intake
CAGE
4P412

A noise control/filtering device of various sizes, shapes, designs, materials (metallic/non-metallic) and varied mounting configurations used to diffuse air blasts, lowers air velocity, reduce noise, filtration of airborne moisture and/or dust contamination, pressure equalization, speed control for air operated devices. For vehicular application see muffler, (as modified).

Part 20312-2 NSN 4330-01-456-0125

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
37112
FIIG:
T135-C
Concept No.:
App. Key:
CD
Cond. Code:
2
Status:
A

Material Classification

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
--
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
125850
UFC:
61440
LTL:
RATING VARIABLE
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Trailers/Vehicles

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Schedule B and Export
  • Schedule B: 8487900080
  • SITC: 74999
  • End Use: Industrial machines, other
  • NAICS: 333999
  • USDA: 1

Freight Class: Machinery parts not containing electrical features, and not specified or included elsewhere in chapter 84, except ships' propellers

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