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3L50 — Technical Data Sheet

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— · 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: 0.500 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN, overall_length: 1.700 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 4730-00-886-7063, 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
3L50
NSN: 4730-00-886-7063
FSC: 4730
CAGE: 14127 — FOSTER MANUFACTURING CO, INC. DBA FOSTER MANUFACTURING CO (USA)
SPECIFICATIONS
materialSTEEL BODY
leg_length0.500 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN
overall_length1.700 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
surface_treatmentZINC BODY
nominal_thread_size0.250 INCHES ALL ENDS IN
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorNPT ALL ENDS
quick_disconnect_nominal_size0.562 INCHES ALL ENDS IN
NSN4730-00-886-7063
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3L50 · 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
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
•
MATERIAL: STEEL BODY
•
QUICK DISCONNECT NOMINAL SIZE: 0.562 INCHES ALL ENDS IN
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
•
QUICK DISCONNECT METHOD: PUSH-PULL ALL ENDS
•
SURFACE TREATMENT: ZINC BODY
TECHNICAL CHARACTERISTICS
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
MATERIALSTEEL BODY
CONNECTION TYPEEXTERNAL QUICK DISCONNECT ALL ENDS
QUICK DISCONNECT NOMINAL SIZE0.562 INCHES ALL ENDS IN
THREAD SERIES DESIGNATORNPT ALL ENDS
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
SURFACE TREATMENTZINC BODY
LEG LENGTH0.500 INCHES MINIMUM AND 0.560 INCHES MAXIMUM IN
STYLE DESIGNATORMALE COUPLING HALF
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
115KSInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
219518InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
903015InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3L15InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
10389113InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
11628991InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3L50?
3L50 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 3L50?
There are 6 known substitutes for 3L50: 115KS, 219518, 903015 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3L50?
3L50 is cataloged in the Federal Logistics Information System under NSN 4730-00-886-7063. 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: October 2026