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721121-A2 — SWITCH,PUSH

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

721121-A2: SWITCH,PUSH.

The SWITCH,PUSH is a the manufacturer industrial component. Key specifications include body_style: BUSHING MOUNTED, thread_class: 2A A, body_diameter: 0.750 INCHES NOMINAL IN, bushing_length: 0.410 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, actuator_height: 0.560 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5930-01-027-5400, 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
721121-A2
NSN: 5930-01-027-5400
FSC: 5930 — Switches
CAGE: 07150 — ELECTRO-MECH COMPONENTS, INC. DBA ELECTRO-MECH COMPONENTS INC (USA)
SPECIFICATIONS
body_styleBUSHING MOUNTED
thread_class2A A
body_diameter0.750 INCHES NOMINAL IN
bushing_length0.410 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
actuator_height0.560 INCHES NOMINAL IN
mounting_methodTHREADED BUSHING
actuator_diameter0.375 INCHES NOMINAL IN
nominal_thread_size0.563 INCHES IN
thread_quantity_per_inch32
thread_series_designatorUN
terminal_type_and_quantity12 TAB, SOLDER LUG
NSN5930-01-027-5400
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PUSH TITLE COMPONENT PN 721121-A2 MFR SWITCH,PUSH
KEY FEATURES
•
BUSHING LENGTH: 0.410 INCHES NOMINAL IN
•
BODY DIAMETER: 0.750 INCHES NOMINAL IN
•
ACTUATOR DIAMETER: 0.375 INCHES NOMINAL IN
•
INCLOSURE TYPE: FULLY INCLOSED
•
BODY STYLE: BUSHING MOUNTED
•
MOUNTING METHOD: THREADED BUSHING
•
NOMINAL THREAD SIZE: 0.563 INCHES IN
•
NONPILE-UP CONTACT ARRANGEMENT: 6 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION SINGLE SWITCH UNIT
TECHNICAL CHARACTERISTICS
BUSHING LENGTH0.410 INCHES NOMINAL IN
BODY DIAMETER0.750 INCHES NOMINAL IN
ACTUATOR DIAMETER0.375 INCHES NOMINAL IN
INCLOSURE TYPEFULLY INCLOSED
BODY STYLEBUSHING MOUNTED
MOUNTING METHODTHREADED BUSHING
NOMINAL THREAD SIZE0.563 INCHES IN
NONPILE-UP CONTACT ARRANGEMENT6 POLE, SINGLE THROW, NORMALLY CLOSED, MOMENTARY ACTION SINGLE SWITCH UNIT
MAXIMUM VOLTAGE RATING IN VOLTS125.0 AC AND 28.0 DC
THREAD CLASS2A A
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 1
GS839FW1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 721121-A2?
721121-A2 is a SWITCH,PUSH.
What parts can replace 721121-A2?
There is 1 known substitute for 721121-A2: GS839FW1. Substitute compatibility should be verified for your specific system.
What is the NSN for 721121-A2?
721121-A2 is cataloged in the U.S. Government catalog under NSN 5930-01-027-5400. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.