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Technical Data Sheet
PartsTable / MRO / 301803
301803 ✓ Verified by PartsTable
Trevi · 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

- Big display LCD;<br>- Alarm clock 12-24hr;<br>- Calendar;<br>- Digital Thermometer °C / °F;<br>- Electronic alarm;<br>- Power supply: 2 Batteries AAA not included;<br>- Dimension: 160x125x20mm. Key specifications include material: STEEL OVERALL, end_style: SPRING END,SQUARED AND GROUND BOTH ENDS, body_width: 1.688 INCHES NOMINAL IN, body_height: 3.562 INCHES NOMINAL IN, body_length: 1.688 INCHES NOMINAL IN, inclosure_type: FULLY INCLOSED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-237-6321, 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→ 301803
NSN: 5950-00-237-6321
FSC: 5950
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
body_width1.688 INCHES NOMINAL IN
body_height3.562 INCHES NOMINAL IN
body_length1.688 INCHES NOMINAL IN
inclosure_typeFULLY INCLOSED
inside_diameter0.530 INCHES NOMINAL IN
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating250.0 HERTZ MINIMUM AND 3.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
special_featuresMULTIFOCAL LENS 75 MM FT28 8 BASE ADD LEFT; FOR USE WITH END ITEM NSN 6540-01-604-9603 MULTIVISION FABRICATION SYSTEM MM
style_designatorCYLINDRICAL
spring_free_length1.125 INCHES NOMINAL IN
NSN5950-00-237-6321
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Trevi TRANSFORMER,AUDIO FREQUENCY TITLE COMPONENT PN 301803 MFR Trevi TRANSFORMER,AUDIO FREQ
KEY FEATURES
•
IMPEDANCE RATING IN OHMS: 3570.0 NOMINAL AND 9000.0 NOMINAL AND 22000.0 NOMINAL AND 56000.0 NOMINAL AND 142000.0 NOMINAL AND 357000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
•
PRIMARY TO SECONDARY TURN RATIO: 1 TO 34-2/5 SINGLE COMPONENT
•
FREQUENCY RATING: 250.0 HERTZ MINIMUM AND 3.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
•
RELIABILITY INDICATOR: NOT ESTABLISHED
•
BODY WIDTH: 1.688 INCHES NOMINAL IN
•
BODY LENGTH: 1.688 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
IMPEDANCE RATING IN OHMS3570.0 NOMINAL AND 9000.0 NOMINAL AND 22000.0 NOMINAL AND 56000.0 NOMINAL AND 142000.0 NOMINAL AND 357000.0 NOMINAL SINGLE COMPONENT SINGLE SECONDARY
PRIMARY TO SECONDARY TURN RATIO1 TO 34-2/5 SINGLE COMPONENT
FREQUENCY RATING250.0 HERTZ MINIMUM AND 3.0 KILOHERTZ MAXIMUM SINGLE COMPONENT
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC) SINGLE GROUP
RELIABILITY INDICATORNOT ESTABLISHED
IMPEDANCE RATING IN OHMS300.0 NOMINAL SINGLE COMPONENT SINGLE PRIMARY
BODY WIDTH1.688 INCHES NOMINAL IN
BODY LENGTH1.688 INCHES NOMINAL IN
INCLOSURE TYPEFULLY INCLOSED
THREAD QUANTITY PER INCH32 SINGLE GROUP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
301803Interchangeable
interchangeable cross-reference
interchangeable
970095K0500TAInterchangeable
interchangeable cross-reference
interchangeable
97009Interchangeable
interchangeable cross-reference
interchangeable
6540NCM128795Interchangeable
interchangeable cross-reference
interchangeable
067513-8302Interchangeable
interchangeable cross-reference
interchangeable
D162065Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 301803?
301803 is a TRANSFORMER,AUDIO FREQUENCY manufactured by Trevi. It is classified as a MRO (MRO_GENERAL).
What parts can replace 301803?
There are 7 known substitutes for 301803: 301803, 970095K0500TA, 97009 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 301803?
301803 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5950-00-237-6321. 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