Model: M28748/4-K2DF2A

Electrical Receptacle Connector

Special Features:

Mounting plate

Properties:

Thread Class
2a and 2b
Thread Direction
Right-hand
Body Style
Rectangular shape
Overall Length
2.855 inches
Center To Center Distance Between Mounting Facilities Parallel To Length
Between 2.276 inches and 2.286 inches
Overall Height
Between 0.620 inches and 0.735 inches
Environmental Protection
Humidity resistant and shock resistant and thermal shock resistant and vibration resistant
Unthreaded Mounting Hole Diameter
Between 0.123 inches and 0.127 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
Between 0.761 inches and 0.771 inches
Threaded Device Type
Coupling facility
Mating End Quantity
1
Contact Position Arrangement Style
75 single mating end
Contact Removability
Removable single mating end single contact grouping
Contact Maximum Current Rating In Amps
7.5 single mating end single contact grouping
Polarization Method
Shell and jackscrew
Shell Type
Solid
Connector Locking Method
Jackscrew-socket
Thread Length
0.320 inches
Thready Qty Per Inch (tpi)
32
Thread Size
0.138 inches
Terminal Location
Back single mating end single contact grouping
Contact Surface Treatment
Gold single mating end single contact grouping
Insert Material
Plastic diallyl phthalate single mating end
Contact Surface Treatment Specification
Mil-g-45294 type 1, grade c military specification single treatment response single mating end single contact grouping
Terminal Type
Crimp single mating end single contact grouping
Shell Material
Aluminum alloy
Shell Surface Treatment
Cadmium
Shell Surface Treatment Specification
Qq-p-416 type 2, cl 1 federal specification single treatment response
Insert Material Specification
Mil-m-14 ty sdg-f military specification single material response single mating end
Shell Guide Type And Location Designator
D slot
Included Contact Quantity
75 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
0.075 gold grains, troy
Precious Material
Gold
Test Data Document
81349-mil-c-28748 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-28748/4 government specification
NSN
5935-01-137-2274
Part Number
M28748/4-K2DF2A
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 M28748/4-K2DF2A NSN 5935-01-137-2274

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:
--
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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