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PartsTable / COMPONENT / 1779AS104-1
1779AS104-1 ✓ 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 ADAPTER BUSHING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, overall_length: 0.938 INCHES NOMINAL IN, special_features: FURNISHED W/LOCKWASHER AND JAM NUT, male_end_thread_size: 3/4-16, male_end_thread_class: 2A A, female_end_thread_size: 1/4-18. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-333-1815, 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
1779AS104-1
NSN: 4730-01-333-1815
FSC: 4730
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialCOPPER ALLOY
overall_length0.938 INCHES NOMINAL IN
special_featuresFURNISHED W/LOCKWASHER AND JAM NUT
male_end_thread_size3/4-16
male_end_thread_class2A A
female_end_thread_size1/4-18
supplementary_featuresCLEANED IAW MIL-C-52211 CLASS D FOR OXYGEN SERVICE
female_end_thread_class2B
female_end_thread_length0.938 INCHES NOMINAL IN
wrenching_facility_shapeHEXAGON
male_end_thread_directionRIGHT-HAND
female_end_thread_directionRIGHT-HAND
NSN4730-01-333-1815
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1779AS104-1 · 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
•
MALE END THREAD CLASS: 2A A
•
WRENCHING FACILITY SHAPE: HEXAGON
•
FEMALE END THREAD SIZE: 1/4-18
•
FEMALE END THREAD LENGTH: 0.938 INCHES NOMINAL IN
•
FEMALE END THREAD DIRECTION: RIGHT-HAND
•
FEMALE END SCREW THREAD SERIES DESIGNATOR: NPT
•
SUPPLEMENTARY FEATURES: CLEANED IAW MIL-C-52211 CLASS D FOR OXYGEN SERVICE
TECHNICAL CHARACTERISTICS (FLIS)
MALE END THREAD CLASS2A A
WRENCHING FACILITY SHAPEHEXAGON
FEMALE END THREAD SIZE1/4-18
SPECIAL FEATURESFURNISHED W/LOCKWASHER AND JAM NUT
FEMALE END THREAD LENGTH0.938 INCHES NOMINAL IN
FEMALE END THREAD DIRECTIONRIGHT-HAND
FEMALE END SCREW THREAD SERIES DESIGNATORNPT
SUPPLEMENTARY FEATURESCLEANED IAW MIL-C-52211 CLASS D FOR OXYGEN SERVICE
MATERIALCOPPER ALLOY
MALE END THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
22597Interchangeable
interchangeable cross-reference
interchangeable
502-1133Interchangeable
interchangeable cross-reference
interchangeable
HW10117Interchangeable
interchangeable cross-reference
interchangeable
1551AS261-1CPInterchangeable
interchangeable cross-reference
interchangeable
1551AS261Interchangeable
interchangeable cross-reference
interchangeable
1551AS261-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1779AS104-1?
1779AS104-1 is a ADAPTER BUSHING.
What parts can replace 1779AS104-1?
There are 10 known substitutes for 1779AS104-1: 22597, 502-1133, HW10117 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1779AS104-1?
1779AS104-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-333-1815. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026