Model: 21B3

Electron Tube Retainer

Properties:

Overall Length
0.980 inches
Overall Height
1.875 inches
Overall Diameter
0.723 inches
Unthreaded Mounting Hole Diameter
0.132 inches single mounting facility
Distance From Retainer Center To Centerline Of Mounting Facility
0.469 inches
Accommodated Item Securing Device Type
Spring clamp
Eia Electron Tube Envelope Accommodated
T-5 1/2
Tube Accommodated Maximum Height
1.500 inches
Tube Envelope Accommodated Maximum Diameter
0.750 inches
Mounting Facility Type And Quantity
1 unthreaded hole single mounting facility
Features Provided
Post locking tab
Material
Stainless steel
Surface Treatment
Cadmium
Style Designator
Helix spring hold down with hook
NSN
5960-00-262-7185
Part Number
21B3
Description
Retainer,electron Tube
CAGE
82252

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 21B3 NSN 5960-00-262-7185

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:
1.9 X 0.7 X 0.7
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:
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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