Model: 20551

Waveguide Adapter

Properties:

Flange Quantity
2
Flange Inside Width
2.837 inches first flange and 2.843 inches first flange
Flange Inside Width
2.837 inches second flange and 2.843 inches second flange
Flange Inside Height
0.452 inches first flange and 0.458 inches first flange
Flange Inside Height
0.586 inches second flange and 0.592 inches second flange
Flange Outside Width
3.580 inches first flange and 3.620 inches first flange
Flange Outside Width
3.730 inches second flange and 3.770 inches second flange
Flange Outside Height
1.780 inches first flange and 1.820 inches first flange
Flange Outside Height
2.310 inches second flange and 2.350 inches second flange
Flange Depth
0.280 inches first flange and 0.340 inches first flange
Flange Depth
0.280 inches second flange and 0.340 inches second flange
Flange Connecting Hole Diameter
0.251 inches first flange second connection facility
Flange Connecting Hole Diameter
0.255 inches second flange single connection facility
Flange Connecting Hole Diameter
0.276 inches first flange first connection facility and 0.286 inches first flange first connection facility
Voltage Standing Wave Ratio
1.07
Adapter Length
Between 2.282 inches and 2.302 inches
Flange Connecting Facility And Quantity
2 unthreaded hole first flange second connection facility
Flange Connecting Facility And Quantity
4 unthreaded hole first flange first connection facility
Flange Connecting Facility And Quantity
8 unthreaded hole second flange single connection facility
Flange Style
Contact type first flange
Flange Style
Contact type second flange
Material
Aluminum alloy 6061 single tubing segment and flange
Surface Treatment
Chromate zinc single tubing segment outside surfaces and enamel single tubing segment outside surfaces and chromate single tubing segment outside surfaces
Surface Treatment
Varnish single tubing segment inside surfaces
Style Designator
Waveguide to waveguide
Fsc Application Data
Radar system
NSN
5985-01-275-7200
Part Number
20551
Description
Adapter,waveguide
CAGE
00443

An item designed to establish the necessary accommodations to connect a waveguide to a coaxial line, or to connect two or more terminated waveguides whose physical design does not normally allow connection.

Part 20551 NSN 5985-01-275-7200

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
00186
FIIG:
A073A0
Concept No.:
App. Key:
D
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:
--
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:
72D
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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