121-BB-3 — SWITCH,ROTARY

✓ Government record, cited

— · MRO · MRO_GENERAL

PRODUCT OVERVIEW

121-BB-3: SWITCH,ROTARY.

The SWITCH,ROTARY is a the manufacturer industrial component. Key specifications include shaft_type: ROUND SINGLE ACTUATOR, shaft_length: 0.906 INCHES MINIMUM AND 0.969 INCHES MAXIMUM SINGLE ACTUATOR IN, thread_class: 2B SINGLE MOUNTING FACILITY, overall_width: 1.375 INCHES NOMINAL IN, pole_quantity: 2 SINGLE SECTION PERIPHERY, terminal_type: TURRET. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-981-9347, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

MRO→ MRO_GENERAL→ 121-BB-3

NSN: 5930-00-981-9347
FSC: 5930 — Switches
CAGE: 28057 — SHALLCO, INC (USA)

SPECIFICATIONS

shaft_type	ROUND SINGLE ACTUATOR
shaft_length	0.906 INCHES MINIMUM AND 0.969 INCHES MAXIMUM SINGLE ACTUATOR IN
thread_class	2B SINGLE MOUNTING FACILITY
overall_width	1.375 INCHES NOMINAL IN
pole_quantity	2 SINGLE SECTION PERIPHERY
terminal_type	TURRET
overall_height	1.375 INCHES NOMINAL IN
overall_length	2.376 INCHES NOMINAL IN
shaft_diameter	0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM SINGLE ACTUATOR IN
throw_quantity	3 SINGLE SECTION PERIPHERY
mounting_method	THREADED HOLE(S) SINGLE MOUNTING FACILITY
style_designator	TAP, SQUARE FRAME
NSN	5930-00-981-9347

COMPONENT DIAGRAM

KEY FEATURES

•

SHAFT TYPE: ROUND SINGLE ACTUATOR

•

SHAFT DIAMETER: 0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM SINGLE ACTUATOR IN

•

SWITCH CONTACT BASIC DESIGN: NONPILE-UP SYMMETRICAL

•

TERMINAL TYPE: TURRET

•

MOUNTING FACILITY PATTERN: TWO POSITION IN-LINE SINGLE MOUNTING FACILITY

•

CONTACT LOAD CURRENT RATING: 2.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL

TECHNICAL CHARACTERISTICS

SHAFT TYPE	ROUND SINGLE ACTUATOR
OVERALL HEIGHT	1.375 INCHES NOMINAL IN
SHAFT DIAMETER	0.249 INCHES MINIMUM AND 0.251 INCHES MAXIMUM SINGLE ACTUATOR IN
SWITCH CONTACT BASIC DESIGN	NONPILE-UP SYMMETRICAL
TERMINAL TYPE	TURRET
MOUNTING FACILITY PATTERN	TWO POSITION IN-LINE SINGLE MOUNTING FACILITY
CONTACT LOAD CURRENT RATING	2.0 AMPERES RESISTIVE LOAD AC AT SEA LEVEL
CONTACT LOAD CURRENT RATING	2.0 AMPERES RESISTIVE LOAD DC AT SEA LEVEL
MOUNTING METHOD	THREADED HOLE(S) SINGLE MOUNTING FACILITY
POLE QUANTITY	2 SINGLE SECTION PERIPHERY

OTHER ITEMS IN FSC 5930 — Switches

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5930-00-000-0117 5930-00-001-1407 5930-00-001-1890 5930-00-001-2571 5930-00-001-2575 5930-00-001-2580 5930-00-001-2608 5930-00-001-2609

SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 121-BB-3?

121-BB-3 is a SWITCH,ROTARY. It is classified as a MRO (MRO_GENERAL).

What is the NSN for 121-BB-3?

121-BB-3 is cataloged in the U.S. Government catalog under NSN 5930-00-981-9347. This indicates validated use in U.S. government and defense supply chains.

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