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Technical Data Sheet
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31477 ✓ Verified by PartsTable
— · COMPONENT
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

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include special_features: OVERSEAS METRIC, 25.4MM X 25.4MM X 19.05MM MM, part_name_assigned_by_controlling_agency: TEE, REDUCER, 1"X1"X3/4". This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 6640-00-359-9880, 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
31477
NSN: 6640-00-359-9880
FSC: 6640
CAGE: 48619 — PRECISION SCIENTIFIC PETROLEUM INSTRUMENTS CO (USA)
SPECIFICATIONS
special_featuresOVERSEAS METRIC, 25.4MM X 25.4MM X 19.05MM MM
part_name_assigned_by_controlling_agencyTEE, REDUCER, 1"X1"X3/4"
NSN6640-00-359-9880
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available FILTER,RADIO FREQUENCY INTERFERE TITLE COMPONENT PN 31477 MFR FILTER,RADIO FREQUENCY
KEY FEATURES
•
CURRENT TYPE: AC
•
OUTSIDE WIDTH: 19.000 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING OUTER DOOR
•
OPERATING TEMP RANGE: +0.0 TO 250.0 CELSIUS DEGC
•
HEAT SOURCE FOR WHICH DESIGNED: INTEGRAL
•
OUTSIDE DEPTH: 18.000 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CURRENT TYPEAC
OUTSIDE WIDTH19.000 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING OUTER DOOR
MATERIALSTEEL CORROSION RESISTING CABINET INNER WALL
MATERIALALUMINUM SHELF
OPERATING TEMP RANGE+0.0 TO 250.0 CELSIUS DEGC
HEAT SOURCE FOR WHICH DESIGNEDINTEGRAL
OUTSIDE DEPTH18.000 INCHES NOMINAL IN
CIRCULATION METHODGRAVITY
POWER RATING820.0 WATTS NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
13254Interchangeable
interchangeable cross-reference
interchangeable
971580-5Interchangeable
interchangeable cross-reference
interchangeable
683RH-1-3/4-1-1/4SInterchangeable
interchangeable cross-reference
interchangeable
43538Interchangeable
interchangeable cross-reference
interchangeable
4650Interchangeable
interchangeable cross-reference
interchangeable
1023Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 31477?
31477 is a FILTER,RADIO FREQUENCY INTERFERE.
What parts can replace 31477?
There are 13 known substitutes for 31477: 13254, 971580-5, 683RH-1-3/4-1-1/4S and 10 more. Substitute compatibility should be verified for your specific system.
Is 31477 still available?
31477 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026