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A-7990 — FILTER,RADIO FREQUENCY INTERFERE

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

A-7990: FILTER,RADIO FREQUENCY INTERFERE.

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include body_width: 4.000 INCHES NOMINAL IN, body_height: 3.000 INCHES NOMINAL IN, body_length: 6.750 INCHES NOMINAL IN, shaft_width: 0.187 INCHES NOMINAL IN, nominal_size: 0.187 INCHES FRONT END IN, shaft_length: 0.560 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5930-00-727-0494, 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→ A-7990
NSN: 5930-00-727-0494
NIINs: 007270494, 015008765
FSC: 5930 — Switches
CAGE: 05584 — AUTODYNE MANUFACTURING CO INC (USA)
SPECIFICATIONS
body_width4.000 INCHES NOMINAL IN
body_height3.000 INCHES NOMINAL IN
body_length6.750 INCHES NOMINAL IN
shaft_width0.187 INCHES NOMINAL IN
nominal_size0.187 INCHES FRONT END IN
shaft_length0.560 INCHES NOMINAL IN
body_materialMETAL
inclosure_typeENCASED
overall_height1.060 INCHES NOMINAL IN
mounting_methodSLOT
overall_diameter1.062 INCHES NOMINAL IN
style_designatorRECTANGULAR TERMINAL/TERMINALS ON TWO SURFACES
NSN5930-00-727-0494
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN A-7990 MFR FILTER,RADIO FREQUENCY
KEY FEATURES
•
OVERALL DIAMETER: 1.062 INCHES NOMINAL IN
•
MOUNTING METHOD: SLOT
•
SWITCH POSITION QUANTITY: 10
•
SHAFT LENGTH: 0.560 INCHES NOMINAL IN
•
POSITIONING INCREMENTS IN DEG: 36.0
•
SHAFT WIDTH: 0.187 INCHES NOMINAL IN
•
MOUNTING CONFIGURATION: MTG SLOT AROUND SHAFT 0.312 IN. FROM FRONT IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.060 INCHES NOMINAL IN
OVERALL DIAMETER1.062 INCHES NOMINAL IN
MOUNTING METHODSLOT
SWITCH POSITION QUANTITY10
SHAFT LENGTH0.560 INCHES NOMINAL IN
POSITIONING INCREMENTS IN DEG36.0
SHAFT WIDTH0.187 INCHES NOMINAL IN
MOUNTING CONFIGURATIONMTG SLOT AROUND SHAFT 0.312 IN. FROM FRONT IN
END ITEM IDENTIFICATIONTYPE NO. AN/GRC-106
DISTANCE FROM SHAFT END TO MOUNTING SURFACE0.312 INCHES IN
SUBSTITUTES & CROSS-REFERENCES 2
666092-316Reference document
Same NSN cross-reference
Reference document — Secondary reference
SM-B-500187Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 A-7990?
A-7990 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace A-7990?
There are 2 known substitutes for A-7990: 666092-316, SM-B-500187. Substitute compatibility should be verified for your specific system.
What is the NSN for A-7990?
A-7990 is cataloged in the U.S. Government catalog under NSN 5930-00-727-0494. 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.