Model: 74276 3SR 3A4-2

Rotary Switch

Special Features:

Submersible; weapon system essential

Properties:

Overall Length
5.000 inches
Overall Height
7.000 inches
Overall Width
7.000 inches
Unthreaded Mounting Hole Diameter
0.380 inches single mounting facility
Individual Section Quantity
3
End Application
Ticonderoga class cg (47); submarine auxillary and miscellanous systems; nimitz class cvn; systems, jp-5 aviation fuels; sturgeon class ssn (637); gun fire control system, mk 68; los angeles class ssn (688); virginia class cgn (41); spruance class dd (963); forrestal class cv
Switch Contact Basic Design
Nonpile-up symmetrical
Pole Quantity
1 single section periphery
Throw Quantity
1 single section periphery
Mounting Facility Circle Radius
3.310 inches single mounting facility
Mounting Method
Bracket single mounting facility and unthreaded hole single mounting facility
Features Provided
Actuator knob
Contact Voltage Rating In Volts
250.0 dc at sea level
Contact Voltage Rating In Volts
500.0 ac at sea level
Mounting Facility Pattern
Three position circular single mounting facility
Switch Actuator Indexing Position Quantity
4 single actuator
Criticality Code Justification
Feat
Terminal Type
Tab w/screw
Switch Actuator Positioning Increment
90.0 degrees single actuator
Contact Load Current Rating
30.0 amperes resistive load ac at sea level
Contact Load Current Rating
30.0 amperes resistive load dc at sea level
Style Designator
Circular wafer, panel mount
Test Data Document
81349-mil-s-15743 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.).
Specification Data
81349-mil-s-15743/8 government specification
NSN
5930-01-245-9532
Part Number
74276 3SR 3A4-2
Description
Switch,rotary
CAGE
80064

A switch actuated by a definite angular rotation of the switch shaft about its axis. For items having rated actuation travel and pressure characteristics, see switch, sensitive. Excludes relay, rotary; switch, stepping; and switch, telephone (as modified).

Part 74276 3SR 3A4-2 NSN 5930-01-245-9532

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
02134
FIIG:
A052B0
Concept No.:
1
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:
Y

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
9.0 X 9.0 X 7.0
Paclk Weight:
5.5000lbs
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:
72D
TCC:
Z
SHC:
9
ACC:
Instruments/Radio

End Items End applications NSN 5930-01-245-9532 is a component of

  • Ticonderoga Class Cg (47)
  • Sturgeon Class Ssn (637)
  • Los Angeles Class Ssn (688)
  • Stream (std. Tensioned Replenishment At Sea Method)
  • Fire Pumps
  • 1200 Psi Boilers
  • Jp-5 Aviation Fuels Systems
  • Main Feed Pumps
  • Cargo/weapons Elevators
  • (963); Forrestal Class Cv
  • Ticonderoga Class Cg (47); Submarine Auxillary And Miscellanous Systems; Nimitz Class Cvn; Systems

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Schedule B and Export
  • Schedule B: 8536509025
  • SITC: 77255
  • End Use: Electric apparatus
  • NAICS: 335931
  • USDA: 1

Freight Class: Switches, rotary, rated at over 5 a, for a voltage not exceeding 1,000 volts

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