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Technical Data Sheet
PartsTable / COMPONENT / 581516-025
581516-025 ✓ 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 HOSE ASSEMBLY,NONMETALLIC is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, special_features: CGA-577 THREAD STYLE - FOR OXYGEN SERVICE ONLY - NIPPLE HAS A FILTER, operating_pressure: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 0.250 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 4730-01-486-0497, 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
581516-025
NSN: 4730-01-486-0497
FSC: 4730
CAGE: 75906 — PACIFIC CONSOLIDATED INDUSTRIES LLC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
special_featuresCGA-577 THREAD STYLE - FOR OXYGEN SERVICE ONLY - NIPPLE HAS A FILTER
operating_pressure4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.250 INCHES ALL ENDS IN
nominal_overall_length3.000 INCHES IN
end_item_identificationFIVE TON LIQ
thread_series_designatorNPT ALL ENDS
NSN4730-01-486-0497
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 581516-025 · 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
•
THREAD SERIES DESIGNATOR: NPT ALL ENDS
•
OPERATING PRESSURE: 4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL OVERALL LENGTH: 3.000 INCHES IN
•
NOMINAL THREAD SIZE: 0.250 INCHES ALL ENDS IN
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
MATERIAL: COPPER ALLOY OVERALL
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
SPECIAL FEATURESCGA-577 THREAD STYLE - FOR OXYGEN SERVICE ONLY - NIPPLE HAS A FILTER
THREAD SERIES DESIGNATORNPT ALL ENDS
OPERATING PRESSURE4000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL OVERALL LENGTH3.000 INCHES IN
NOMINAL THREAD SIZE0.250 INCHES ALL ENDS IN
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
MATERIALCOPPER ALLOY OVERALL
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
END ITEM IDENTIFICATIONFIVE TON LIQ
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
CGA540-62Interchangeable
interchangeable cross-reference
interchangeable
581516Interchangeable
interchangeable cross-reference
interchangeable
1551AS598-2Interchangeable
interchangeable cross-reference
interchangeable
PF-4SS-24Interchangeable
interchangeable cross-reference
interchangeable
581516-010Interchangeable
interchangeable cross-reference
interchangeable
CGA-577-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 581516-025?
581516-025 is a HOSE ASSEMBLY,NONMETALLIC.
What parts can replace 581516-025?
There are 15 known substitutes for 581516-025: CGA540-62, 581516, 1551AS598-2 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 581516-025?
581516-025 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-486-0497. 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