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Technical Data Sheet
PartsTable / MRO / 403-80
403-80 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The MODULATOR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, design_type: LOOP SINGLE ANTENNA ELEMENT, current_type: DC, hole_diameter: 5.1 MILLIMETERS MINIMUM AND 5.4 MILLIMETERS MAXIMUM MM, overall_width: 1.500 INCHES NOMINAL IN, terminal_type: RECEPTACLE, COAXIAL SINGLE ANTENNA ELEMENT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-034-2824, 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→ 403-80
NSN: 5310-00-034-2824
FSC: 5310
CAGE: 91816 — CIRCOR AEROSPACE, INC. DBA CIRCOR AEROSPACE INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
design_typeLOOP SINGLE ANTENNA ELEMENT
current_typeDC
hole_diameter5.1 MILLIMETERS MINIMUM AND 5.4 MILLIMETERS MAXIMUM MM
overall_width1.500 INCHES NOMINAL IN
terminal_typeRECEPTACLE, COAXIAL SINGLE ANTENNA ELEMENT
inclosure_typeFULLY INCLOSED
overall_height0.900 INCHES NOMINAL IN
overall_length118.750 INCHES NOMINAL IN
voltage_rating10.0 VOLTS MINIMUM AND 12.0 VOLTS MAXIMUM
furnished_itemsBASE AND SUPPORT
hardness_rating44.0 ROCKWELL C MINIMUM AND 51.0 ROCKWELL C MAXIMUM
NSN5310-00-034-2824
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 403-80 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
1140Interchangeable
interchangeable cross-reference
interchangeable
AC2580Interchangeable
interchangeable cross-reference
interchangeable
8170-29-50Interchangeable
interchangeable cross-reference
interchangeable
337325Interchangeable
interchangeable cross-reference
interchangeable
751-7051Interchangeable
interchangeable cross-reference
interchangeable
140-380Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 403-80?
403-80 is a MODULATOR. It is classified as a MRO (MRO_GENERAL).
What parts can replace 403-80?
There are 15 known substitutes for 403-80: 1140, AC2580, 8170-29-50 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 403-80?
403-80 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-034-2824. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026