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J4543-8 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

FILTER ELEMENT,INTAKE AIR CLEANE. Key specifications include material: IRON BODY, body_design: ANGLE PATTERN, design_type: THERMOSTATIC, thread_direction: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED, inlet_connection_type: FEMALE IRON PIPE, outlet_connection_type: FEMALE IRON PIPE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-595-2795, 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
J4543-8
NSN: 4730-00-595-2795
FSC: 4730
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
materialIRON BODY
body_designANGLE PATTERN
design_typeTHERMOSTATIC
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
inlet_connection_typeFEMALE IRON PIPE
outlet_connection_typeFEMALE IRON PIPE
maximum_steam_working_pressureERR-060
rated_capacity_at_maximum_working_pressure1040.0 POUNDS OF WATER PER HOUR LBS
NSN4730-00-595-2795
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J4543-8 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DESIGN TYPE: THERMOSTATIC
•
MATERIAL: STEEL VALVE HEAD
•
RATED CAPACITY AT MAXIMUM WORKING PRESSURE: 1040.0 POUNDS OF WATER PER HOUR LBS
•
INLET CONNECTION TYPE: FEMALE IRON PIPE
•
OUTLET CONNECTION TYPE: FEMALE IRON PIPE
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN TYPETHERMOSTATIC
MATERIALSTEEL VALVE HEAD
RATED CAPACITY AT MAXIMUM WORKING PRESSURE1040.0 POUNDS OF WATER PER HOUR LBS
INLET CONNECTION TYPEFEMALE IRON PIPE
OUTLET CONNECTION TYPEFEMALE IRON PIPE
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
MATERIALIRON BODY
MATERIALSTEEL VALVE SEAT
MAXIMUM STEAM WORKING PRESSUREERR-060
BODY DESIGNANGLE PATTERN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
46616Interchangeable
interchangeable cross-reference
interchangeable
550 1/4Interchangeable
interchangeable cross-reference
interchangeable
10316Interchangeable
interchangeable cross-reference
interchangeable
AF-3493Interchangeable
interchangeable cross-reference
interchangeable
546616Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J4543-8?
J4543-8 is a FILTER ELEMENT,INTAKE AIR CLEANE.
What parts can replace J4543-8?
There are 5 known substitutes for J4543-8: 46616, 550 1/4, 10316 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for J4543-8?
J4543-8 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-595-2795. 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