Model: 44-90257

Electronic Shielding Gasket

Special Features:

Gwhen installed at thickness shown on drawing and compressed under a load of 20 psi shall be capable of providing a of 60 db of shielding effectiveness in the frequency range 20 khz to 100 mhz

Properties:

Cross Sectional Shape
Metal
Hole Diameter
Between 0.218 inches and 0.229 inches
Bolt Circle Diameter
7.600 inches
Overall Width
8.840 inches
Aperture Diameter
6.000 inches
Outside Corner Radius
0.375 inches
Side Radius From Bolt Circle
7.960 inches
Cross-sectional Thickness
0.060 inches
Bolt Hole Quantity
12
End Application
E-3a aircraft
Part Name Assigned By Controlling Agency
Seal, emp - aft zone supply air distribution
Material
Steel and rubber silicone class q
Nuclear Hardness Critical Feature
Hardened
Surface Treatment
Copper and tin
Style Designator
Non-circular
NSN
5999-01-490-9796
Part Number
44-90257
Description
Shielding Gasket,electronic
CAGE
07700

A shaped metallic item designed to increase the effectiveness of radio frequency/electromagnetic interference, or a nonmetallic item containing a wire mesh, metal, or other electrically conductive particles designed to provide environmental sealing and radio frequency/electromagnetic interference shielding. For bulk items see wire mesh, knitted or gasketing material, conductive.

Part 44-90257 NSN 5999-01-490-9796

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
20281
FIIG:
A032A0
Concept No.:
App. Key:
AK
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:
A
ESD:
A
MMAC:
CRITL:
H

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:
062800
UFC:
35070
LTL:
85.0
LCL:
--
WCC:
723
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8543909000
  • SITC: 77879
  • End Use: Electric apparatus
  • NAICS: 335999
  • USDA: 1

Freight Class: Electrical machines and apparatus parts, nesoi

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