Model: 348-40E18-21S1

Electrical Receptacle Connector

Properties:

Thread Class
2a
Thread Direction
Right-hand
Body Style
Straight shape, external coupling
Overall Length
Between 1.275 inches and 1.340 inches
Overall Height
Between 1.335 inches and 1.351 inches
Overall Width
Between 1.335 inches and 1.351 inches
Environmental Protection
Pressure proof and moisture resistant and vibration resistant
Unthreaded Mounting Hole Diameter
Between 0.116 inches and 0.126 inches
Center To Center Distance Between Mounting Facilities Parallel To Height
Between 1.057 inches and 1.067 inches
Distance Between Centerlines Of Mounting Facilities Parallel To Body Width
Between 1.057 inches and 1.067 inches
Distance From Mounting Shoulder To Front Face
Between 0.765 inches and 0.775 inches
Threaded Device Type
Back shell
Mating End Quantity
1
Contact Position Arrangement Style
18-21 f03 single mating end
Contact Removability
Removable single mating end single contact grouping
Polarization Method
Key, multiple key groove
Insert Position In Deg
95.0 and 145.0 and 220.0 and 255.0
Shell Type
Solid
Connector Locking Method
Bayonet pin
Thready Qty Per Inch (tpi)
28
Thread Size
1.125 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
Contact Surface Treatment Specification
Mil-g-45204, type 1, class 2 military specification single treatment response single mating end single contact grouping
Terminal Type
Crimp single mating end single contact grouping
Shell Material
Aluminum alloy 6061
Shell Surface Treatment
Chromium
Shell Material Specification
Qq-a-367, comp 6061, t6 federal specification single material response
Included Contact Quantity
21 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
0.021 gold grains, troy
Precious Material
Gold
Test Data Document
81349-mil-c-81511 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
Specification Data
81349-mil-c-81511/1 government specification
NSN
5935-00-256-9788
Part Number
348-40E18-21S1
Description
Connector,receptacle,electrical
CAGE
13556

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 348-40E18-21S1 NSN 5935-00-256-9788

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:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
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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