Model: MIL-C-28731/4

Electrical Receptacle Connector

Properties:

Thread Class
2b
Thread Direction
Right-hand
Body Style
Straight shape, rectangular
Overall Length
Between 1.630 inches and 1.650 inches
Overall Height
Between 1.630 inches and 1.650 inches
Overall Width
Between 3.526 inches and 3.546 inches
Environmental Protection
Corrosion resistant and thermal shock resistant and vibration resistant
Unthreaded Mounting Hole Diameter
Between 0.115 inches and 0.135 inches
Center To Center Distance Between Mounting Facilities Parallel To Height
Between 0.990 inches and 1.010 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
Between 2.090 inches and 3.110 inches
Threaded Device Type
Coupling facility
Mating End Quantity
1
Contact Position Arrangement Style
100 single mating end
Contact Removability
Nonremovable single mating end single contact grouping
Polarization Method
Mating end and guide pin/socket
Connector Locking Method
Post jacksocket
Thready Qty Per Inch (tpi)
24
Thread Size
0.190 inches
Terminal Location
Back single mating end single contact grouping
Contact Material
Copper alloy single mating end single contact grouping
Contact Surface Treatment
Gold single mating end single contact grouping and nickel single mating end single contact grouping
Insert Material
Plastic diallyl phthalate glass filled single mating end or plastic polyester single mating end
Contact Surface Treatment Specification
Mil-g-45204, type 2, grade c, cl 1 military specification 1st treatment response single mating end single contact grouping and qq-n-290, cl 2 federal specification 2nd treatment response single mating end single contact grouping
Terminal Type
Wire wrap single mating end single contact grouping
Contact Material Specification
Qq-b-750 federal specification single material response single mating end single contact grouping
Guide Design And Location
Key shape socket left-hand at 9 oclock
Guide Design And Location
Key shape socket right-hand at 3 oclock
Insert Material Specification
Mil-m-14, ty sdg-f or gdi-20f military specification 1st material response single mating end or mil-m-24519 military specification 2nd material response single mating end
Included Contact Quantity
100 single mating end single contact grouping
Included Contact Type
Round socket single mating end single contact grouping
Precious Material And Location
Contact surfaces gold
Precious Material And Weight
0.100 gold grains, troy
Precious Material
Gold
Test Data Document
81349-mil-c-28731 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
Unc
Specification Data
81349-mil-c-28731/4 government specification
NSN
5935-01-311-2766
Part Number
MIL-C-28731/4
Description
Connector,receptacle,electrical
CAGE
81349

An electrical fitting with electrical contacts constructed to be affixed to the end of a cable, conduit, coaxial line, cord, wire (includes printed/etched), printed wiring board, or the like for convenience in joining with another electrical connector(s) or printed wiring board. It is designed to be mounted on a bulkhead, chassis, panel, wall, printed wiring board, or the like. Excludes lampholder; jack, telephone; jack, tip; insert electrical connector; insert module, electrical connector; connector body (as modified) and socket, plug-in electronic components. See also wiring harness (as modified) and cable assembly (as modified). For items with termination wires of more than four inches in length, see lead assembly, electrical. For items without inserts, see shell, electrical connector.

Part MIL-C-28731/4 NSN 5935-01-311-2766

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15093
FIIG:
A039B0
Concept No.:
App. Key:
K
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:
ESD:
MMAC:
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.3000lbs
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:
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: 8538907080
  • SITC: 77282
  • End Use: Electric apparatus
  • NAICS: 335314
  • USDA: 1

Freight Class: Parts suitable for use solely or principally with the apparatus for heading 8535, 8536,8537, nesoi

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