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PartsTable / COMPONENT / 4730PL1525781
4730PL1525781 ✓ 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 COUPLING HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: STEEL BODY, leg_length: 0.484 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN, overall_length: 2.062 INCHES NOMINAL IN, connection_type: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-720-1868, 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
4730PL1525781
NSN: 4730-00-720-1868
FSC: 4730
CAGE: 9009H — JEDNOLITY INDEKS MATERIALOWY - UNIFORM MATERIAL INDEX (POL)
SPECIFICATIONS
materialSTEEL BODY
leg_length0.484 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
overall_length2.062 INCHES NOMINAL IN
connection_typeTHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
features_providedSAFETY LOCKING FEATURE
surface_treatmentCADMIUM BODY
nominal_thread_size0.375 INCHES ALL ENDS IN
quick_disconnect_methodSPRING PUSH-LOCK ALL ENDS
thread_series_designatorNPT ALL ENDS
specification/standard_data58536-A-A59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
NSN4730-00-720-1868
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 4730PL1525781 · 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
•
QUICK DISCONNECT NOMINAL SIZE: 0.562 INCHES ALL ENDS IN
•
CONNECTION TYPE: THREADED INTERNAL PIPE FIRST FLUID END CONNECTION
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
SPECIFICATION/STANDARD DATA: 58536-A-A59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
•
CONNECTION STYLE: PLAIN ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
TECHNICAL CHARACTERISTICS (FLIS)
QUICK DISCONNECT NOMINAL SIZE0.562 INCHES ALL ENDS IN
CONNECTION TYPETHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
THREAD SERIES DESIGNATORNPT ALL ENDS
SPECIFICATION/STANDARD DATA58536-A-A59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
CONNECTION TYPEEXTERNAL QUICK DISCONNECT FIRST QUICK DISCONNECT END
CONNECTION STYLEPLAIN ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
LEG LENGTH0.484 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN
OVERALL LENGTH2.062 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
LD175690Interchangeable
interchangeable cross-reference
interchangeable
42-19Interchangeable
interchangeable cross-reference
interchangeable
770-2 3-4Interchangeable
interchangeable cross-reference
interchangeable
4-219-1Interchangeable
interchangeable cross-reference
interchangeable
WPP56Interchangeable
interchangeable cross-reference
interchangeable
MFA42AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 4730PL1525781?
4730PL1525781 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 4730PL1525781?
There are 16 known substitutes for 4730PL1525781: LD175690, 42-19, 770-2 3-4 and 13 more. Substitute compatibility should be verified for your specific system.
Is 4730PL1525781 still available?
4730PL1525781 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