Model: M28840/21CH1BBP1

Electrical Plug Connector

Special Features:

Contacts per mil-c-39029/83-450

Properties:

Thread Class
2a and 2a
Thread Direction
Right-hand and right-hand
Body Style
Straight shape, internal coupling w/strain relief
Body Length
8.500 inches
Overall Diameter
2.343 inches
Environmental Protection
Corrosion resistant and fungus resistant and salt water resistant and shock resistant and vibration resistant and weather resistant
Cable Entrance Diameter
Between 1.000 inches and 1.380 inches
Threaded Device Type
Back shell and coupling facility
Mating End Quantity
1
Contact Position Arrangement Style
29-121 single mating end
Contact Removability
Removable single mating end single contact grouping
Polarization Method
Keyway or multiple keyway
Insert Position In Deg
0.0 and 80.0 and 142.0 and 196.0 and 293.0
Shell Type
Solid
Connector Locking Method
Externally threaded shell
Connector Cable Strain Relief Method
Cable clamp
End Application
Virginia class submarine
Thready Qty Per Inch (tpi)
16 and 10
Thread Size
1.875 inches and 1.812 inches
Terminal Location
Back single mating end single contact grouping
Terminal Type
Crimp single mating end single contact grouping
Shell Material
Aluminum
Shell Surface Treatment
Cadmium
Included Contact Quantity
121 single mating end single contact grouping
Included Contact Type
Round pin single mating end single contact grouping
Color
Olive drab
Precious Material And Location
Contact surfaces gold
Precious Material
Gold
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.).
Thread Series Designator
Un and double stub
Specification Data
81349-mil-c-28840/21 government specification
NSN
5935-01-514-7817
Part Number
M28840/21CH1BBP1
Description
Connector,plug,electrical
CAGE
81349

An electrical fitting with electrical contacts, constructed to be affixed to the end of a cable, conduit, coaxial line, cord or wiring for convenience in joining with other electrical connector(s) or printed wiring board and is not designed to be mounted on a bulkhead, chasses, panel, printed wiring board, or the like. Excludes jack, telephone; jack, tip; plug, telephone; plug tip; insert, electrical connector; connector body (as modified); and socket, plug-in, electronic components. see also lead assembly, electrical; wiring harness (as modified); and cable assembly (as modified). for items without inserts, see shell, electrical connector.

Part M28840/21CH1BBP1 NSN 5935-01-514-7817

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
01938
FIIG:
A039B0
Concept No.:
App. Key:
G
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:
G
ESD:
A
ESD:
A
MMAC:
CRITL:
X

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
061680
UFC:
34570
LTL:
RATING VARIABLE
LCL:
--
WCC:
658
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

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Schedule B and Export
  • Schedule B: 8536695050
  • SITC: 77258
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Electrical plugs & sockets, for a voltage not exceeding 1,000 v, nesoi

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