PartsTable
Technical Data Sheet
PartsTable / MRO / 1-1990
1-1990 ✓ Verified by PartsTable
Clementoni · MRO · MRO_GENERAL
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

SWITCH,RADIO FREQUENCY TRANSMISS. Key specifications include length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT, material: ALUMINUM ALLOY 2024, shaft_type: ROUND, FLATTED SINGLE ACTUATOR, flat_height: 0.210 INCHES NOMINAL SINGLE ACTUATOR IN, shaft_length: 0.812 INCHES NOMINAL SINGLE ACTUATOR IN, thread_class: 2A SINGLE MOUNTING FACILITY A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 9540-00-251-2683, 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→ 1-1990
NSN: 9540-00-251-2683
FSC: 9540
CAGE: 27610 — INTERNATIONAL LIGHT METALS CORP SUB OF MARTIN MARIETTA CORP (USA)
SPECIFICATIONS
length10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT
materialALUMINUM ALLOY 2024
shaft_typeROUND, FLATTED SINGLE ACTUATOR
flat_height0.210 INCHES NOMINAL SINGLE ACTUATOR IN
shaft_length0.812 INCHES NOMINAL SINGLE ACTUATOR IN
thread_class2A SINGLE MOUNTING FACILITY A
overall_width1.125 INCHES NOMINAL IN
pole_quantity1 EACH SECTION FRONT
terminal_typeTAB, SOLDER LUG
thread_length0.437 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
heat_treatmentT-3511 SOLUTION HEAT TREATED
overall_length5.062 INCHES NOMINAL IN
NSN9540-00-251-2683
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Clementoni SWITCH,RADIO FREQUENCY TRANSMISS TITLE COMPONENT PN 1-1990 MFR Clementoni SWITCH,RADIO FREQUENCY
KEY FEATURES
•
LEFT INSIDE ANGLE: 90.0 DEGREES NOMINAL
•
LEFT SIDE FLANGE HEIGHT: 1.125 INCHES NOMINAL IN
•
BASE FLANGE THICKNESS: 0.125 INCHES NOMINAL IN
•
MATERIAL: ALUMINUM ALLOY 2024
•
RIGHT SIDE FLANGE THICKNESS: 0.125 INCHES NOMINAL IN
•
SECOND TIP RELATIONSHIP TO FIRST TIP: IDENTICAL
•
WEIGHT PER UNIT MEASURE: 0.480 POUNDS PER LINEAR FOOT LBS
•
BASIC SHAPE STYLE: CHANNEL
TECHNICAL CHARACTERISTICS (FLIS)
LEFT INSIDE ANGLE90.0 DEGREES NOMINAL
LEFT SIDE FLANGE HEIGHT1.125 INCHES NOMINAL IN
BASE FLANGE THICKNESS0.125 INCHES NOMINAL IN
MATERIALALUMINUM ALLOY 2024
RIGHT SIDE FLANGE THICKNESS0.125 INCHES NOMINAL IN
SECOND TIP RELATIONSHIP TO FIRST TIPIDENTICAL
WEIGHT PER UNIT MEASURE0.480 POUNDS PER LINEAR FOOT LBS
BASIC SHAPE STYLECHANNEL
FILLET RADIUS WHERE RIGHT FLANGE JOINS BASE FLANGE0.125 INCHES NOMINAL IN
FILLET RADIUS WHERE LEFT FLANGE JOINS BASE FLANGE0.125 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
578R823H02Interchangeable
interchangeable cross-reference
interchangeable
25277Interchangeable
interchangeable cross-reference
interchangeable
ITS7680Interchangeable
interchangeable cross-reference
interchangeable
331C001Interchangeable
interchangeable cross-reference
interchangeable
70-010Interchangeable
interchangeable cross-reference
interchangeable
1-12AS CInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 1-1990?
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 1-1990?
1-1990 is a SWITCH,RADIO FREQUENCY TRANSMISS manufactured by Clementoni. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1-1990?
There are 21 known substitutes for 1-1990: 578R823H02, 25277, ITS7680 and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1-1990?
1-1990 is cataloged in the Federal Logistics Information System (FLIS) under NSN 9540-00-251-2683. This indicates validated use in U.S. government and defense supply chains.
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 — 1-1990

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