Model: MIL-W-3970/13

Waveguide Assembly

Special Features:

Mtg holes spaced on 0.994 in.By 0.994 in.Mtg centers on ea flange

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
90.0 single bend h-plane
Tubing Wall Construction Style
Seamless single tubing segment
Flange Quantity
2
Flange Inside Height
0.311 inches first flange
Flange Inside Height
0.394 inches second flange
Flange Outside Width
1.312 inches first flange
Flange Outside Width
1.312 inches second flange
Flange Outside Height
1.312 inches first flange
Flange Outside Height
1.312 inches second flange
Flange Inside Diameter
0.622 inches all flanges
Flange Depth
0.313 inches second flange
Flange Depth
0.375 inches first flange
Flange Connecting Hole Diameter
0.144 inches second flange all connection facilities
Voltage Standing Wave Ratio
1.04
Insertion Loss In Decibels
0.07
Thready Qty Per Inch (tpi)
32 first flange all connection facilities
Maximum Operating Pressure
30.0 pounds per square inch gage
Waveguide Outside Width
0.702 inches
Thread Size
0.138 inches first flange all connection facilities
Waveguide Inside Width
0.622 inches
Waveguide Inside Height
0.311 inches
Waveguide Outside Height
0.391 inches
Waveguide Longer Offset Distance
Between 2.586 inches and 2.616 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
Between 2.586 inches and 2.616 inches
Flexibility
Rigid single tubing segment
Material
Copper alloy single tubing segment
Precious Material And Location
Tubing surface silver
Precious Material
Silver
Surface Treatment
Silver single tubing segment inside surfaces
Style Designator
Bend type
Thread Series Designator
Unc first flange all connection facilities
Specification Data
81349-mil-w-3970/13 government specification
NSN
5985-00-296-1985
Part Number
MIL-W-3970/13
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-3970/13 NSN 5985-00-296-1985

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:
S
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:
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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