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Technical Data Sheet
PartsTable / MRO / 1603496
1603496 ✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Full open or full close only — never throttle Rising stem shows position visually
Throttling a gate valve erodes seats
PRODUCT OVERVIEW

FILTER,RADIO FREQUENCY INTERFERE. Key specifications include material: COPPER ALLOY OVERALL, body_width: 2.500 INCHES NOMINAL IN, body_height: 1.750 INCHES NOMINAL IN, body_length: 2.750 INCHES NOMINAL IN, bonnet_type: EXPOSED SPRING, body_material: METAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4820-00-287-4089, 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→ 1603496
NSN: 4820-00-287-4089
FSC: 4820
CAGE: 50019 — READY POWER CO THE (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
body_width2.500 INCHES NOMINAL IN
body_height1.750 INCHES NOMINAL IN
body_length2.750 INCHES NOMINAL IN
bonnet_typeEXPOSED SPRING
body_materialMETAL
inclosure_typeHERMETICALLY SEALED
overall_length4.572 INCHES MAXIMUM IN
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorRECTANGULAR TERMINAL/TERMINALS ON OPPOSITE SURFACES
thread_directionRIGHT-HAND ALL ENDS
NSN4820-00-287-4089
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1603496 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
THREAD DIRECTION: RIGHT-HAND ALL ENDS
•
BONNET ATTACHMENT METHOD: THREADED
•
FLOW CONTROL DEVICE: POPPET
•
BONNET TYPE: EXPOSED SPRING
•
DISK LOADING METHOD: SPRING
•
MEDIA FOR WHICH DESIGNED: GAS, NATURAL SECOND RESPONSE
•
MATERIAL: COPPER ALLOY OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
THREAD DIRECTIONRIGHT-HAND ALL ENDS
BONNET ATTACHMENT METHODTHREADED
FLOW CONTROL DEVICEPOPPET
BONNET TYPEEXPOSED SPRING
DISK LOADING METHODSPRING
MEDIA FOR WHICH DESIGNEDGAS, NATURAL SECOND RESPONSE
MATERIALCOPPER ALLOY OVERALL
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
A9052Interchangeable
interchangeable cross-reference
interchangeable
554-4069-004Interchangeable
interchangeable cross-reference
interchangeable
70607Interchangeable
interchangeable cross-reference
interchangeable
16553Interchangeable
interchangeable cross-reference
interchangeable
MIL039Interchangeable
interchangeable cross-reference
interchangeable
VRA46Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1603496?
1603496 is a FILTER,RADIO FREQUENCY INTERFERE. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1603496?
There are 22 known substitutes for 1603496: A9052, 554-4069-004, 70607 and 19 more. Substitute compatibility should be verified for your specific system.
Is 1603496 still available?
1603496 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