Model: MIL-W-3970/11

Waveguide Assembly

Properties:

Cross Sectional Shape
Internal, rectangular external, rectangular
Thread Class
2b first flange all connection facilities
Thread Direction
Right-hand first flange all connection facilities
Bend Angle In Deg
45.0 single bend h-plane
Tubing Wall Construction Style
Seamless single tubing segment
Flange Quantity
2
Flange Inside Width
1.118 inches first flange and 1.126 inches first flange
Flange Inside Width
1.253 inches second flange and 1.256 inches second flange
Flange Inside Height
0.493 inches first flange and 0.501 inches first flange
Flange Inside Height
0.628 inches second flange and 0.631 inches second flange
Flange Outside Width
1.860 inches first flange and 1.890 inches first flange
Flange Outside Width
1.860 inches second flange and 1.890 inches second flange
Flange Outside Height
1.860 inches first flange and 1.890 inches first flange
Flange Outside Height
1.860 inches second flange and 1.890 inches second flange
Flange Depth
0.423 inches second flange and 0.453 inches second flange
Flange Depth
0.610 inches first flange and 0.640 inches first flange
Flange Connecting Hole Diameter
0.169 inches second flange all connection facilities and 0.172 inches second flange all connection facilities
Thready Qty Per Inch (tpi)
32 first flange all connection facilities
Waveguide Outside Width
Between 1.246 inches and 1.254 inches
Thread Size
0.164 inches first flange all connection facilities
Waveguide Inside Width
Between 1.118 inches and 1.126 inches
Waveguide Inside Height
Between 0.493 inches and 0.501 inches
Waveguide Outside Height
Between 0.621 inches and 0.629 inches
Waveguide Longer Offset Distance
3.453 inches
Flange Connecting Facility And Quantity
4 threaded hole first flange all connection facilities
Flange Connecting Facility And Quantity
4 unthreaded hole second flange all connection facilities
Flange Style
Choke type first flange
Flange Style
Cover type second flange
Waveguide Offset Distance
3.453 inches
Flexibility
Rigid single tubing segment
Material
Copper alloy all tubing segment and flange
Surface Treatment
Any acceptable single tubing segment all surfaces
Style Designator
Bend type
Thread Series Designator
Unc first flange all connection facilities
Specification Data
81349-mil-w-3970/11 government specification
Fsc Application Data
Antennas, waveguides, and related equipment
NSN
5985-00-296-1784
Part Number
MIL-W-3970/11
Description
Waveguide Assembly
CAGE
81349

An item consisting of one or more definite lengths of straight or formed, flexible or rigid, prefabricated hollow tubing of conductive material. The tubing has a predetermined cross section and is designed to guide or conduct high frequency electromagnetic energy through its interior. One or more ends are terminated. May include common mounting of a switch, wave guide, a dummy load, electrical and other components such as waveguide section, cable terminal chamber and the like. Excludes coupler, rotary, radio frequency; coupler, directional; adapter, waveguide; and tuner, waveguide.

Part MIL-W-3970/11 NSN 5985-00-296-1784

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00305
FIIG:
A073A0
Concept No.:
App. Key:
B
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
P
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:
1.2000lbs
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:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
063520
UFC:
49770
LTL:
RATING VARIABLE
LCL:
--
WCC:
723
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8529109000
  • SITC: 76493
  • End Use: Telecommunications equipment
  • NAICS: 334220
  • USDA: 1

Freight Class: Antenna & antenna reflectors of all kinds; parts suitable for use soley or principally w/ apparatus of heading 8525 to 8528, nesoi

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