PartsTable
Technical Data Sheet
J531 ✓ 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

The COIL,RADIO FREQUENCY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, body_type: SOLID, head_type: SOLID, core_depth: 0.475 INCHES NOMINAL IN, reducer_type: CONCENTRIC, thread_class: 3A ALL ENDS A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-011-3175, 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
J531
NSN: 4730-00-011-3175
FSC: 4730
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL OVERALL
body_typeSOLID
head_typeSOLID
core_depth0.475 INCHES NOMINAL IN
reducer_typeCONCENTRIC
thread_class3A ALL ENDS A
exterior_colorGRAY/GREY OVERALL
drive_end_styleRAISED SQUARE
connection_stylePLAIN
special_featuresBRASS PLUG FOR INTERNAL 3/4 INCH PIPE THREADS IN
thread_directionRIGHT-HAND INTERNAL
features_providedTHREAD RELIEF
NSN4730-00-011-3175
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: J531 · 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
NOMINAL THREAD SIZE: 0.125 INCHES EXTERNAL IN
BODY TYPE: CORED
CONNECTION STYLE: PLAIN
MATERIAL: COPPER ALLOY OVERALL
THREAD SERIES DESIGNATOR: NPT EXTERNAL
NONDEFINITIVE SPEC/STD DATA: 1 TYPE
MAXIMUM OPERATING TEMP: 200.0 CELSIUS DEGC
OPERATING PRESSURE: 17.8 BAR MAXIMUM
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.125 INCHES EXTERNAL IN
BODY TYPECORED
CONNECTION STYLEPLAIN
MATERIALCOPPER ALLOY OVERALL
THREAD SERIES DESIGNATORNPT EXTERNAL
NONDEFINITIVE SPEC/STD DATA1 TYPE
MAXIMUM OPERATING TEMP200.0 CELSIUS DEGC
OPERATING PRESSURE17.8 BAR MAXIMUM
DRIVE END STYLERAISED SQUARE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-C-390,COMP 3 FED SPEC SINGLE MATERIAL RESPONSE OR ASTM B62 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 26
1945HX1Interchangeable
interchangeable cross-reference
interchangeable
109B1-4Interchangeable
interchangeable cross-reference
interchangeable
A908196Interchangeable
interchangeable cross-reference
interchangeable
109BInterchangeable
interchangeable cross-reference
interchangeable
1-2IPSBR125LBWPInterchangeable
interchangeable cross-reference
interchangeable
MILF1184Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is J531?
J531 is a COIL,RADIO FREQUENCY.
What parts can replace J531?
There are 26 known substitutes for J531: 1945HX1, 109B1-4, A908196 and 23 more. Substitute compatibility should be verified for your specific system.
Is J531 still available?
J531 is currently cancelled.
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