Model: 255978-LAM

Rotary Switch Section

Special Features:

Off-set dummy positions 2a, 5a, 8a, 14a on front

Properties:

Overall Height
1.832 inches
Overall Width
1.328 inches
Body Thickness
0.088 inches
Unthreaded Mounting Hole Diameter
0.112 inches single mounting facility and 0.115 inches single mounting facility
Longest Horizontal Distance Between Mounting Centers
1.562 inches single mounting facility
Operating Tempurature Range
-65.0/+100.0 degrees celsius
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 single section front
Pole Quantity
1 single section rear
Throw Quantity
18 single section front
Throw Quantity
18 single section rear
Mounting Method
Strut single mounting facility and unthreaded hole single mounting facility
Contact Voltage Rating In Volts
150.0 ac at altitude
Contact Voltage Rating In Volts
150.0 ac at sea level
Contact Voltage Rating In Volts
30.0 dc at altitude
Contact Voltage Rating In Volts
30.0 dc at sea level
Mounting Facility Pattern
Two position in-line single mounting facility
Terminal Type
Tab, solder lug
Contact Switching Action
Breaks before makes single section front
Contact Switching Action
Breaks before makes single section rear
Contact Load Current Rating
100.0 milliamperes resistive load dc at altitude
Contact Load Current Rating
200.0 milliamperes resistive load dc at sea level and 20.0 milliamperes inductive load dc at sea level
Contact Load Current Rating
25.0 milliamperes resistive load ac at altitude
Contact Load Current Rating
50.0 milliamperes resistive load ac at sea level
Style Designator
Switch section, rotary
Test Data Document
81349-mil-s-3786 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.).
NSN
5930-00-975-9751
Part Number
255978-LAM
Description
Switch Section,rotary
CAGE
76854

An item consisting of electrical contacts mounted on an insulated plate which together form a section of a switch or relay. It includes both rotor and stator but does not include drive or actuating mechanism.

Part 255978-LAM NSN 5930-00-975-9751

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
15315
FIIG:
A052B0
Concept No.:
App. Key:
B
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:
U
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:
061300
UFC:
34410
LTL:
77.5
LCL:
--
WCC:
723
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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