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PartsTable / COMPONENT / AW503-37818-4 PIECE 15
AW503-37818-4 PIECE 15 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

The TUBE AND FITTINGS,METALLIC is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, case_style: SQUARE, seal_width: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN, thread_class: 2A STUD THREAD A, thread_length: 2.687 INCHES MAXIMUM NUT THREAD IN, overall_length: 4.375 INCHES NOMINAL 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 4710-01-396-5180, 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
AW503-37818-4 PIECE 15
NSN: 4710-01-396-5180
FSC: 4710
CAGE: 0D8H4 — EXSTAR INTERNATIONAL CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY
case_styleSQUARE
seal_width0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
thread_class2A STUD THREAD A
thread_length2.687 INCHES MAXIMUM NUT THREAD IN
overall_length4.375 INCHES NOMINAL IN
inside_diameter1.130 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN
outside_diameter1.360 INCHES MINIMUM AND 1.370 INCHES MAXIMUM IN
special_featuresSTYLE DESIGNATOR:NO.60 IRREGULAR SHAPE FROM FIIG A03200;CROSS SECTIONAL SHAPE STYLE: NO.195 IRREGULAR SHAPE FROM FIIG A03200
thread_directionRIGHT-HAND NUT THREAD
overall_thickness0.051 INCHES NOMINAL IN
surface_treatmentANODIZE
NSN4710-01-396-5180
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: AW503-37818-4 PIECE 15 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
37819Interchangeable
interchangeable cross-reference
interchangeable
5330PL0815797Interchangeable
interchangeable cross-reference
interchangeable
40B887-104A112-16Interchangeable
interchangeable cross-reference
interchangeable
18356N GRP8 PIEInterchangeable
interchangeable cross-reference
interchangeable
3781994Interchangeable
interchangeable cross-reference
interchangeable
288047Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AW503-37818-4 PIECE 15?
AW503-37818-4 PIECE 15 is a TUBE AND FITTINGS,METALLIC.
What parts can replace AW503-37818-4 PIECE 15?
There are 17 known substitutes for AW503-37818-4 PIECE 15: 37819, 5330PL0815797, 40B887-104A112-16 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AW503-37818-4 PIECE 15?
AW503-37818-4 PIECE 15 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4710-01-396-5180. 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: July 2026