PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 503-02476 ITEM 18
503-02476 ITEM 18 ✓ 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, overall_length: 2.690 INCHES NOMINAL IN, connection_type: INTERNAL QUICK DISCONNECT ALL ENDS, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF, nominal_thread_size: 0.500 INCHES ALL ENDS IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-319-7804, 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
503-02476 ITEM 18
NSN: 4730-01-319-7804
FSC: 4730
CAGE: 34712 — LAKE SHORE SYSTEMS, INC. (USA)
SPECIFICATIONS
materialSTEEL BODY
overall_length2.690 INCHES NOMINAL IN
connection_typeINTERNAL QUICK DISCONNECT ALL ENDS
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
nominal_thread_size0.500 INCHES ALL ENDS IN
end_item_identification2420-66-148-7692, HMEE (HIGH MOBILITY ENGINEER EXCAVATOR)
quick_disconnect_methodPUSH-PULL ALL ENDS
thread_series_designatorNPTF ALL ENDS
quick_disconnect_nominal_size0.500 INCHES ALL ENDS IN
NSN4730-01-319-7804
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 503-02476 ITEM 18 · 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 METHOD: PUSH-PULL ALL ENDS
•
CONNECTION TYPE: INTERNAL QUICK DISCONNECT ALL ENDS
•
QUICK DISCONNECT NOMINAL SIZE: 0.500 INCHES ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.500 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
CONNECTION STYLE: PLAIN ALL ENDS
•
MATERIAL: STEEL BODY
TECHNICAL CHARACTERISTICS (FLIS)
QUICK DISCONNECT METHODPUSH-PULL ALL ENDS
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
QUICK DISCONNECT NOMINAL SIZE0.500 INCHES ALL ENDS IN
CONNECTION TYPETHREADED INTERNAL PIPE FIRST FLUID END CONNECTION
NOMINAL THREAD SIZE0.500 INCHES ALL ENDS IN
STYLE DESIGNATORMALE COUPLING HALF
CONNECTION STYLEPLAIN ALL ENDS
MATERIALSTEEL BODY
OVERALL LENGTH2.690 INCHES NOMINAL IN
THREAD SERIES DESIGNATORNPTF ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
40504Interchangeable
interchangeable cross-reference
interchangeable
F3116132PC39Interchangeable
interchangeable cross-reference
interchangeable
B5450TBPGInterchangeable
interchangeable cross-reference
interchangeable
3261283Interchangeable
interchangeable cross-reference
interchangeable
9177258Interchangeable
interchangeable cross-reference
interchangeable
X33574Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 503-02476 ITEM 18?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 503-02476 ITEM 18?
503-02476 ITEM 18 is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace 503-02476 ITEM 18?
There are 15 known substitutes for 503-02476 ITEM 18: 40504, F3116132PC39, B5450TBPG and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 503-02476 ITEM 18?
503-02476 ITEM 18 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-319-7804. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 503-02476 ITEM 18

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026