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Technical Data Sheet
PartsTable / COMPONENT / LL3T20
LL3T20 ✓ 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: 0.560 INCHES NOMINAL IN, overall_length: 1.630 INCHES MINIMUM AND 1.688 INCHES MAXIMUM IN, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF, surface_treatment: PASSIVATE BODY. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-011-2304, 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
LL3T20
NSN: 4730-00-011-2304
FSC: 4730
CAGE: 72992 — HOLMES INTL INC (USA)
SPECIFICATIONS
materialSTEEL BODY
leg_length0.560 INCHES NOMINAL IN
overall_length1.630 INCHES MINIMUM AND 1.688 INCHES MAXIMUM IN
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentPASSIVATE BODY
nominal_thread_size0.375 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorNPTF ALL ENDS
quick_disconnect_nominal_size0.531 INCHES ALL ENDS IN
surface_treatment_document_and_classificationMIL-F-14072,E300 MIL SPEC SINGLE TREATMENT RESPONSE BODY
NSN4730-00-011-2304
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: LL3T20 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
4730PL0773105Interchangeable
interchangeable cross-reference
interchangeable
2EH663Interchangeable
interchangeable cross-reference
interchangeable
1596848P1REV1Interchangeable
interchangeable cross-reference
interchangeable
13027292-3Interchangeable
interchangeable cross-reference
interchangeable
2673205-3Interchangeable
interchangeable cross-reference
interchangeable
1-093Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LL3T20?
LL3T20 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace LL3T20?
There are 27 known substitutes for LL3T20: 4730PL0773105, 2EH663, 1596848P1REV1 and 24 more. Substitute compatibility should be verified for your specific system.
Is LL3T20 still available?
LL3T20 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