Model: 3121-18503

Electrical Connector Backshell

Properties:

Thread Class
2b
Thread Direction
Right-hand
Seal Material
Any acceptable
Overall Length
Between 0.875 inches and 1.499 inches
Cable Opening Diameter
0.789 inches
Cable Opening Quantity
1
Seal Type
Preformed packing
Size Designation
18
Mounting Facility Type And Quantity
1 threaded coupling
Thready Qty Per Inch (tpi)
18
Thread Size
1.062 inches
Material
Aluminum alloy
Surface Treatment
Cadmium and chromate
Style Designator
Straight shape solid type
Surface Treatment
Cadmium and chromate
Thread Series Designator
Unef
NSN
5935-01-275-6572
Part Number
3121-18503
Description
Backshell,electrical Connector
CAGE
31461

An item specifically designed to be placed around that portion of a connector, receptable, electrical or connector, plug, electrical which contains the facilities for attaching wires or cables. it may be designed to provide the necessary accomodations between an electrical cable clamping device and an electrical connector shell, or it may include the clamping device. it may be used for shielding against electrical interference, mechanical injury, or physical damage due to environmental conditions.

Part 3121-18503 NSN 5935-01-275-6572

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
67169
FIIG:
A10100
Concept No.:
App. Key:
A
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:
A
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:
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: 8548900100
  • SITC: 77813
  • End Use: Electric apparatus
  • NAICS: 335999
  • USDA: 1

Freight Class: Electrical parts of machinery or apparatus not specified or included elsewhere in chapter 85

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