PartsTable
Technical Data Sheet
PartsTable / MRO / 4-303
4-303 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Stranded for flexible routing, solid for conduit THHN/THWN dual-rated — check both tables
Ampacity depends on installation method
PRODUCT OVERVIEW

RESISTOR,VARIABLE,WIRE WOUND,PRE. Key specifications include end_item_identification: AN/UYS-2A(V)1, ALFS A, part_name_assigned_by_controlling_agency: (INAVY) FILTER 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 6145-00-457-6114, 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→ 4-303
NSN: 6145-00-457-6114
FSC: 6145
CAGE: 92194 — BELDEN, INC. (USA)
SPECIFICATIONS
end_item_identificationAN/UYS-2A(V)1, ALFS A
part_name_assigned_by_controlling_agency(INAVY) FILTER ELEMENT
NSN6145-00-457-6114
COMPONENT DIAGRAM
WIRE / CABLE — AMPACITY DEPENDS ON INSTALLATION CROSS-SECTION JACKET WIRE SPECIFICATIONS Conductor Size: — Conductor Count: — Voltage Rating: — Insulation: — Temp Rating: — PN: 4-303 · OEM ⚠ VERIFY BEFORE ORDERING Ampacity depends on installation method — conduit ≠ free air ≠ underground. Same wire, different ratings. AWG sizing is inverse — smaller number = thicker wire (4 AWG > 12 AWG) ✓ BROKER TIP Stranded = flexible routing and vibration resistance. Solid = fixed conduit runs only. THHN/THWN = dual rated — check both dry and wet ampacity tables PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
ROUND CONDUCTOR SIZE: 12 AWG ALL CONDUCTORS
•
TEMP RATING: -4.0 CELSIUS AND 80.0 CELSIUS DEGC
•
CONDUCTOR FORM: STRANDED ALL CONDUCTORS
•
VOLTAGE RATING: 600.0 AC MAXIMUM RATED WORKING VOLTAGE ALL CONDUCTORS
•
MATERIAL: COPPER FIRST POSITION TAPE CABLE
•
CONDUCTOR QUANTITY: 3
•
CROSS-SECTIONAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
ROUND CONDUCTOR SIZE12 AWG ALL CONDUCTORS
TEMP RATING-4.0 CELSIUS AND 80.0 CELSIUS DEGC
CONDUCTOR FORMSTRANDED ALL CONDUCTORS
VOLTAGE RATING600.0 AC MAXIMUM RATED WORKING VOLTAGE ALL CONDUCTORS
MATERIALCOPPER FIRST POSITION TAPE CABLE
CONDUCTOR QUANTITY3
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) SECOND POSITION JACKET CABLE
CROSS-SECTIONAL SHAPE STYLEROUND
MATERIALCOPPER CORE CONDUCTOR ALL CONDUCTORS
COLORBLACK FIRST POSITION JACKET CABLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
RMLH82WInterchangeable
interchangeable cross-reference
interchangeable
BACN10JC08Interchangeable
interchangeable cross-reference
interchangeable
T6S832JInterchangeable
interchangeable cross-reference
interchangeable
43-03Interchangeable
interchangeable cross-reference
interchangeable
7616214P16Interchangeable
interchangeable cross-reference
interchangeable
096826Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4-303?
4-303 is a RESISTOR,VARIABLE,WIRE WOUND,PRE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 4-303?
There are 12 known substitutes for 4-303: RMLH82W, BACN10JC08, T6S832J and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 4-303?
4-303 is cataloged in the Federal Logistics Information System (FLIS) under NSN 6145-00-457-6114. 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