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PartsTable / COMPONENT / AA59439-01-04-00-B
AA59439-01-04-00-B ✓ 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 HALF,QUICK DISCONNECT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY BODY, leg_length: 0.391 INCHES NOMINAL IN, overall_length: 2.094 INCHES NOMINAL IN, connection_type: THREADED EXTERNAL PIPE FIRST FLUID END CONNECTION, connection_style: PLAIN ALL ENDS, style_designator: MALE COUPLING HALF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-813-5893, 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
AA59439-01-04-00-B
NSN: 4730-00-813-5893
FSC: 4730
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialCOPPER ALLOY BODY
leg_length0.391 INCHES NOMINAL IN
overall_length2.094 INCHES NOMINAL IN
connection_typeTHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
connection_stylePLAIN ALL ENDS
style_designatorMALE COUPLING HALF
nominal_thread_size0.125 INCHES ALL ENDS IN
end_item_identificationGRUMMAN A-10 ACFT
quick_disconnect_methodSPRING PUSH-PULL ALL ENDS
thread_series_designatorNPT ALL ENDS
nondefinitive_spec/std_dataA CLASS AND 1 STYLE AND 1 TYPE
specification/standard_data58536-A-A-59439 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
NSN4730-00-813-5893
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AA59439-01-04-00-B · 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
•
QUICK DISCONNECT METHOD: SPRING PUSH-PULL ALL ENDS
•
CONNECTION TYPE: INTERNAL QUICK DISCONNECT ALL ENDS
•
NONDEFINITIVE SPEC/STD DATA: A CLASS AND 1 STYLE AND 1 TYPE
•
NOMINAL THREAD SIZE: 0.125 INCHES ALL ENDS IN
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
CONNECTION STYLE: PLAIN ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
QUICK DISCONNECT METHODSPRING PUSH-PULL ALL ENDS
CONNECTION TYPEINTERNAL QUICK DISCONNECT ALL ENDS
NONDEFINITIVE SPEC/STD DATAA CLASS AND 1 STYLE AND 1 TYPE
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST FLUID END CONNECTION
END ITEM IDENTIFICATIONGRUMMAN A-10 ACFT
NOMINAL THREAD SIZE0.125 INCHES ALL ENDS IN
STYLE DESIGNATORMALE COUPLING HALF
CONNECTION STYLEPLAIN ALL ENDS
LEG LENGTH0.391 INCHES NOMINAL IN
OVERALL LENGTH2.094 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
3302279Interchangeable
interchangeable cross-reference
interchangeable
56344-001-3Interchangeable
interchangeable cross-reference
interchangeable
TA7000Interchangeable
interchangeable cross-reference
interchangeable
B-32AInterchangeable
interchangeable cross-reference
interchangeable
NB32Interchangeable
interchangeable cross-reference
interchangeable
2900Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AA59439-01-04-00-B?
AA59439-01-04-00-B is a COUPLING HALF,QUICK DISCONNECT.
What parts can replace AA59439-01-04-00-B?
There are 10 known substitutes for AA59439-01-04-00-B: 3302279, 56344-001-3, TA7000 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AA59439-01-04-00-B?
AA59439-01-04-00-B is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-813-5893. 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