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7K21 — SWITCH,CODE INDICATING WHEEL

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

7K21: SWITCH,CODE INDICATING WHEEL.

The SWITCH,CODE INDICATING WHEEL is a the manufacturer industrial component. Key specifications include body_width: 5.750 INCHES NOMINAL IN, body_height: 4.625 INCHES NOMINAL IN, body_length: 5.375 INCHES NOMINAL IN, overall_width: 1.150 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED, overall_height: 1.770 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-007-9221, 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
7K21
NSN: 5930-00-007-9221
NIINs: 000079221, 003259192
FSC: 5930 — Switches
CAGE: 07126 — ELECTRO SWITCH CORP. DBA ELECTRO SWITCH CORP DIV DIGITRAN A UNIT OF ELECTRO SWITCH (USA)
SPECIFICATIONS
body_width5.750 INCHES NOMINAL IN
body_height4.625 INCHES NOMINAL IN
body_length5.375 INCHES NOMINAL IN
overall_width1.150 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
overall_height1.770 INCHES NOMINAL IN
overall_length0.500 INCHES NOMINAL IN
mounting_methodFLANGE AND UNTHREADED HOLE(S) SINGLE GROUP
frequency_rating50.0 HERTZ MINIMUM AND 500.0 HERTZ MAXIMUM SINGLE COMPONENT
style_designatorRECTANGULAR INDICATING
features_providedRFI SHIELDING
reliability_indicatorNOT ESTABLISHED
NSN5930-00-007-9221
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available SWITCH,CODE INDICATING WHEEL TITLE COMPONENT PN 7K21 MFR SWITCH,CODE INDICATING
KEY FEATURES
•
CONTACT LOAD CURRENT RATING: 125.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL
•
STYLE DESIGNATOR: RECTANGULAR INDICATING
•
INDIVIDUAL SECTION QUANTITY: 1
•
FEATURES PROVIDED: RFI SHIELDING
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.770 INCHES NOMINAL IN
CONTACT LOAD CURRENT RATING125.0 MILLIAMPERES RESISTIVE LOAD AC AT SEA LEVEL
CONTACT LOAD CURRENT RATING125.0 MILLIAMPERES RESISTIVE LOAD DC AT SEA LEVEL
STYLE DESIGNATORRECTANGULAR INDICATING
INDIVIDUAL SECTION QUANTITY1
OVERALL LENGTH0.500 INCHES NOMINAL IN
OVERALL WIDTH1.150 INCHES NOMINAL IN
FEATURES PROVIDEDRFI SHIELDING
CONTACT VOLTAGE RATING IN VOLTS115.0 AC AT SEA LEVEL
CONTACT VOLTAGE RATING IN VOLTS28.0 DC AT SEA LEVEL
SUBSTITUTES & CROSS-REFERENCES 3
740Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
40119-13Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
07-K-0021Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 7K21?
7K21 is a SWITCH,CODE INDICATING WHEEL.
What parts can replace 7K21?
There are 3 known substitutes for 7K21: 740, 40119-13, 07-K-0021. Substitute compatibility should be verified for your specific system.
What is the NSN for 7K21?
7K21 is cataloged in the U.S. Government catalog under NSN 5930-00-007-9221. 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.