Model: M28840/24BB

Electronic Shielding Gasket

Properties:

Cross Sectional Shape
Emi
Hole Diameter
Between 0.110 inches and 0.130 inches
Overall Length
Between 1.138 inches and 1.154 inches
Overall Width
Between 1.138 inches and 1.154 inches
Aperture Diameter
Between 0.875 inches and 0.891 inches
Outside Corner Radius
Between 0.131 inches and 0.151 inches
Center To Center Distance Between Bolt Holes Along Width
Between 0.833 inches and 0.853 inches
Center To Center Distance Between Bolt Holes Along Length
Between 0.833 inches and 0.853 inches
Outside Edge To Bolt Hole Center Distance Along Width
0.151 inches
Outside Edge To Bolt Hole Center Distance Along Length
0.151 inches
Cross-sectional Height
Between 0.026 inches and 0.036 inches
Bolt Hole Quantity
4
Environmental Protection Material Location
Throughout rf shielding gasket
Material
Nickel alloy emi/rfi conductor
Material
Rubber silicone class q environmental seal
Material Specification
Qq-n-281 federal specification single material response emi/rfi conductor
Material Specification
Zz-r-765 class 3, grade 30 federal specification single material response environmental seal
Style Designator
Non-circular
Test Data Document
81349-mil-c-28840 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).
Specification Data
81349-mil-c-28840/24 government specification
NSN
5999-01-249-9068
Part Number
M28840/24BB
Description
Shielding Gasket,electronic
CAGE
81349

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 M28840/24BB NSN 5999-01-249-9068

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:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
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:
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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