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Technical Data Sheet
PartsTable / COMPONENT / XS1V3-4
XS1V3-4 ✓ 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 UNION,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, seat_type: GROUND-JOINT, connection_style: PLAIN (PIPE) FIRST END, operating_pressure: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 0.750 INCHES FIRST END IN, nominal_overall_length: 2.562 INCHES 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 4730-00-066-1110, 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
XS1V3-4
NSN: 4730-00-066-1110
FSC: 4730
CAGE: 71357 — CATAWISSA VALVE AND FITTINGS CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
seat_typeGROUND-JOINT
connection_stylePLAIN (PIPE) FIRST END
operating_pressure6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.750 INCHES FIRST END IN
nominal_overall_length2.562 INCHES IN
media_for_which_designedWATER-OIL-GAS SINGLE RESPONSE
thread_series_designatorNPT FIRST END
nondefinitive_spec/std_dataA STYLE AND 3 CLASS
nominal_pipe_size_accommodated0.750 INCHES FIRST END IN
material_document_and_classification66,AISI C1030 OR SAE 1030 FED STD SINGLE MATERIAL RESPONSE OVERALL
NSN4730-00-066-1110
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: XS1V3-4 · 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
•
NOMINAL THREAD SIZE: 0.750 INCHES FIRST END IN
•
THREAD SERIES DESIGNATOR: NPT FIRST END
•
MATERIAL: STEEL OVERALL
•
OPERATING PRESSURE: 6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
MEDIA FOR WHICH DESIGNED: WATER-OIL-GAS SINGLE RESPONSE
•
NOMINAL PIPE SIZE ACCOMMODATED: 0.750 INCHES FIRST END IN
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.750 INCHES FIRST END IN
THREAD SERIES DESIGNATORNPT FIRST END
MATERIALSTEEL OVERALL
OPERATING PRESSURE6000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SINGLE RESPONSE
NOMINAL PIPE SIZE ACCOMMODATED0.750 INCHES FIRST END IN
CONNECTION STYLEPLAIN (PIPE) FIRST END
MATERIALSTEEL SEAT
SEAT TYPEGROUND-JOINT
NOMINAL OVERALL LENGTH2.562 INCHES IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
2241Interchangeable
interchangeable cross-reference
interchangeable
MILU18182Interchangeable
interchangeable cross-reference
interchangeable
5720 1-4Interchangeable
interchangeable cross-reference
interchangeable
5720Interchangeable
interchangeable cross-reference
interchangeable
3250X4Interchangeable
interchangeable cross-reference
interchangeable
252H1-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is XS1V3-4?
XS1V3-4 is a UNION,PIPE.
What parts can replace XS1V3-4?
There are 22 known substitutes for XS1V3-4: 2241, MILU18182, 5720 1-4 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for XS1V3-4?
XS1V3-4 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-066-1110. 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