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Technical Data Sheet
PartsTable / COMPONENT / AA59277-A1B
AA59277-A1B ✓ 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 ASSEMBLY,HOSE is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, seat_type: GASKET, connection_type: THREADED INTERNAL HOSE ALL ENDS, connection_style: SOCKET (HOSE) ALL ENDS, operating_pressure: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, nominal_thread_size: 1.500 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 4730-00-288-9970, 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
AA59277-A1B
NSN: 4730-00-288-9970
FSC: 4730
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
seat_typeGASKET
connection_typeTHREADED INTERNAL HOSE ALL ENDS
connection_styleSOCKET (HOSE) ALL ENDS
operating_pressure600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size1.500 INCHES ALL ENDS IN
nominal_overall_length3.938 INCHES IN
media_for_which_designedWATER SINGLE RESPONSE
thread_quantity_per_inch9 ALL ENDS
thread_series_designatorNH ALL ENDS
nondefinitive_spec/std_data1&&JCLA TYPE
furnished_items_and_quantity2 HOSE COUPLING SLEEVE
NSN4730-00-288-9970
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA59277-A1B · 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 QUANTITY PER INCH: 9 ALL ENDS
•
MATERIAL: COPPER ALLOY OVERALL
•
OPERATING PRESSURE: 600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
NOMINAL OVERALL LENGTH: 3.938 INCHES IN
•
MEDIA FOR WHICH DESIGNED: WATER SINGLE RESPONSE
•
THREAD SERIES DESIGNATOR: NH ALL ENDS
•
FURNISHED ITEMS AND QUANTITY: 2 HOSE COUPLING SLEEVE
•
NOMINAL THREAD SIZE: 1.500 INCHES ALL ENDS IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH9 ALL ENDS
MATERIALCOPPER ALLOY OVERALL
OPERATING PRESSURE600.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL OVERALL LENGTH3.938 INCHES IN
MEDIA FOR WHICH DESIGNEDWATER SINGLE RESPONSE
THREAD SERIES DESIGNATORNH ALL ENDS
FURNISHED ITEMS AND QUANTITY2 HOSE COUPLING SLEEVE
NOMINAL THREAD SIZE1.500 INCHES ALL ENDS IN
NONDEFINITIVE SPEC/STD DATA1&&JCLA TYPE
CONNECTION TYPETHREADED INTERNAL HOSE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
ZZ-H-451Interchangeable
interchangeable cross-reference
interchangeable
A-A-59226Interchangeable
interchangeable cross-reference
interchangeable
AA592261A2.525Interchangeable
interchangeable cross-reference
interchangeable
MILF19488SHIPSInterchangeable
interchangeable cross-reference
interchangeable
MIL-F-19488Interchangeable
interchangeable cross-reference
interchangeable
CB3516-6002-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA59277-A1B?
AA59277-A1B is a COUPLING ASSEMBLY,HOSE.
What parts can replace AA59277-A1B?
There are 16 known substitutes for AA59277-A1B: ZZ-H-451, A-A-59226, AA592261A2.525 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA59277-A1B?
AA59277-A1B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-288-9970. 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