PartsTable
Technical Data Sheet
PartsTable / COMPONENT / SW503-1-1/4X1/2
SW503-1-1/4X1/2 ✓ 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 SW503-1-1/4X1/2 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-022-6010, 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
SW503-1-1/4X1/2
NSN: 4730-01-022-6010
FSC: 4730
CAGE: 63220 — FLOWSERVE INC (USA)
SPECIFICATIONS
Part NumberSW503-1-1/4X1/2
NSN4730-01-022-6010
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SW503-1-1/4X1/2 · 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: UNTHREADED EXTERNAL PIPE SECOND END
•
MATERIAL: STEEL OVERALL
•
NOMINAL OVERALL LENGTH: 1.375 INCHES IN
•
REDUCER TYPE: CONCENTRIC
•
CONNECTION STYLE: SOCKET (PIPE) FIRST END
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM A181 GRADE 1 OR A105 GRADE2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
CONNECTION TYPEUNTHREADED EXTERNAL PIPE SECOND END
MATERIALSTEEL OVERALL
NOMINAL OVERALL LENGTH1.375 INCHES IN
REDUCER TYPECONCENTRIC
CONNECTION STYLESOCKET (PIPE) FIRST END
CONNECTION STYLEPLAIN (PIPE) SECOND END
CONNECTION TYPEUNTHREADED INTERNAL PIPE FIRST END
MATERIAL DOCUMENT AND CLASSIFICATIONASTM A181 GRADE 1 OR A105 GRADE2 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PIPE WALL THICKNESS DESIGNATION FOR WHICH DESIGNEDSCHEDULE 80 FIRST END
NOMINAL PIPE SIZE ACCOMMODATED1.250 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
B16.11-73Interchangeable
interchangeable cross-reference
interchangeable
B16-11-1-2IN-IPS1500PSI45ELLInterchangeable
interchangeable cross-reference
interchangeable
B16-11SCHEDULE80Interchangeable
interchangeable cross-reference
interchangeable
SW243-1 1-4Interchangeable
interchangeable cross-reference
interchangeable
1381-1 1-4INInterchangeable
interchangeable cross-reference
interchangeable
1390 1-1/4X3/4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy SW503-1-1/4X1/2?
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 SW503-1-1/4X1/2?
SW503-1-1/4X1/2 is a SW503-1-1/4X1/2.
What parts can replace SW503-1-1/4X1/2?
There are 13 known substitutes for SW503-1-1/4X1/2: B16.11-73, B16-11-1-2IN-IPS1500PSI45ELL, B16-11SCHEDULE80 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for SW503-1-1/4X1/2?
SW503-1-1/4X1/2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-022-6010. 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 — SW503-1-1/4X1/2

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