PartsTable
Technical Data Sheet
PartsTable / COMPONENT / PM21678
PM21678 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The SWITCH,PUSH is a the manufacturer industrial component. Key specifications include body_style: BUSHING MOUNTED, body_length: 0.438 INCHES NOMINAL IN, thread_class: 2A A, body_diameter: 0.562 INCHES NOMINAL IN, bushing_length: 0.188 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5930-00-940-9133, 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
PM21678
NSN: 5930-00-940-9133
FSC: 5930
CAGE: 77820 — AMPHENOL CORP DIV AMPHENOL AEROSPACE OPERATIONS (USA)
SPECIFICATIONS
body_styleBUSHING MOUNTED
body_length0.438 INCHES NOMINAL IN
thread_class2A A
body_diameter0.562 INCHES NOMINAL IN
bushing_length0.188 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
actuator_height0.125 INCHES NOMINAL IN
mounting_methodTHREADED BUSHING
special_featuresINCLUDES METAL MTG. BRACKET AND TRIGGER ACTUATOR
actuator_diameter0.438 INCHES NOMINAL IN
nominal_thread_size0.438 INCHES IN
thread_quantity_per_inch32
NSN5930-00-940-9133
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,PUSH TITLE COMPONENT PN PM21678 MFR SWITCH,PUSH
KEY FEATURES
•
THREAD QUANTITY PER INCH: 32
•
TERMINAL TYPE AND QUANTITY: 2 TAB, SOLDER LUG
•
THREAD SERIES DESIGNATOR: UNEF
•
NONPILE-UP CONTACT ARRANGEMENT: 1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION SINGLE SWITCH UNIT
•
ACTUATOR HEIGHT: 0.125 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.438 INCHES IN
•
BODY LENGTH: 0.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH32
TERMINAL TYPE AND QUANTITY2 TAB, SOLDER LUG
THREAD SERIES DESIGNATORUNEF
NONPILE-UP CONTACT ARRANGEMENT1 POLE, SINGLE THROW, NORMALLY OPEN, MOMENTARY ACTION SINGLE SWITCH UNIT
ACTUATOR HEIGHT0.125 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.438 INCHES IN
SPECIAL FEATURESINCLUDES METAL MTG. BRACKET AND TRIGGER ACTUATOR
BODY LENGTH0.438 INCHES NOMINAL IN
INCLOSURE TYPEFULLY INCLOSED
BUSHING LENGTH0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
21678Interchangeable
interchangeable cross-reference
interchangeable
20395-1Interchangeable
interchangeable cross-reference
interchangeable
644792-103Interchangeable
interchangeable cross-reference
interchangeable
21730Interchangeable
interchangeable cross-reference
interchangeable
31A7984Interchangeable
interchangeable cross-reference
interchangeable
7476323P12Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy PM21678?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is PM21678?
PM21678 is a SWITCH,PUSH.
What parts can replace PM21678?
There are 14 known substitutes for PM21678: 21678, 20395-1, 644792-103 and 11 more. Substitute compatibility should be verified for your specific system.
Is PM21678 still available?
PM21678 is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — PM21678

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026