Model: 20B18556

Electron Tube Retainer

Properties:

Overall Diameter
1.813 inches
Unthreaded Mounting Hole Diameter
0.136 inches single mounting facility
Distance Between Mounting Facility Centers
1.500 inches single mounting facility single center group
Accommodated Item Securing Device Type
Spring clip
Electron Tube Base Accommodated Diameter
+1.235/+1.275 inches
Mounting Facility Type And Quantity
2 unthreaded hole single mounting facility
Material
Steel
Surface Treatment
Cadmium
Surface Treatment Specification
Qq-p-416, type 1, cl 1 federal specification single treatment response
Style Designator
Spring tension lock ring
NSN
5960-00-170-4447
Part Number
20B18556
Description
Retainer,electron Tube
CAGE
71785

An item specifically designed to restrain the movement of an electron tube when the latter is mounted in another item, normally a tube socket. Includes clamps, clips, and similar restraining devices specifically designed for this function.

Part 20B18556 NSN 5960-00-170-4447

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
16182
FIIG:
A062A0
Concept No.:
App. Key:
J
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:
U
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:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
E
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
095190
UFC:
49790
LTL:
70.0
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8540990000
  • SITC: 77629
  • End Use: Telecommunications equipment
  • NAICS: 334419
  • USDA: 1

Freight Class: Thermionic, cold cathode or photocathode tube parts, nesoi

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