Model: M28840/21CF1CBF1

Electrical Plug Connector

Special Features:

Contacts are per m39029/83-508

Properties:

Thread Class
2a and 2a
Thread Direction
Right-hand and right-hand
Body Style
Straight shape, external coupling w/backshell
Overall Length
7.938 inches
Overall Diameter
2.093 inches
Cable Entrance Diameter
Between 0.812 inches and 1.188 inches
Threaded Device Type
Back shell and coupling facility
Mating End Quantity
1
Contact Position Arrangement Style
23-64 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 67.0 and 164.0 and 218.0 and 280.0
Shell Type
Split
Connector Locking Method
Externally threaded shell
Connector Cable Strain Relief Method
Cable clamp
Thready Qty Per Inch (tpi)
18 and 10
Thread Size
1.438 inches and 1.500 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
64 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-dtl-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
Unef and double stub
Specification Data
81349-mil-dtl-28840/21 government specification
NSN
5935-01-618-3877
Part Number
M28840/21CF1CBF1
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 M28840/21CF1CBF1 NSN 5935-01-618-3877

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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