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Technical Data Sheet
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AS5174 ✓ 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,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, seat_type: GROOVED, seat_angle: 15.0 DEGREES FIRST END, reducer_type: CONCENTRIC, thread_class: 3A OVERALL A, nominal_length: 1.750 INCHES ALL ENDS IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-023-4888, 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
AS5174
NSN: 4730-00-023-4888
FSC: 4730
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
seat_typeGROOVED
seat_angle15.0 DEGREES FIRST END
reducer_typeCONCENTRIC
thread_class3A OVERALL A
nominal_length1.750 INCHES ALL ENDS IN
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARED W/ GASKET SEAL (BOSS) OVERALL
style_designatorFLARED W/ CENTER WRENCHING FACILITY
mounting_end_typeENLARGED
surface_treatmentANODIZE OVERALL
operating_pressure1500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NSN4730-00-023-4888
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: AS5174 · 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: 0.562 INCHES FIRST END IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OVERALL LENGTH: 1.328 INCHES IN
•
MEDIA FOR WHICH DESIGNED: FLUID SINGLE RESPONSE
•
SPECIFICATION/STANDARD DATA: 96906-MS24399 GOVERNMENT STANDARD
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL THREAD SIZE0.562 INCHES FIRST END IN
SURFACE TREATMENTPASSIVATE OVERALL
THREAD SERIES DESIGNATORUNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OVERALL LENGTH1.328 INCHES IN
MEDIA FOR WHICH DESIGNEDFLUID SINGLE RESPONSE
SPECIFICATION/STANDARD DATA96906-MS24399 GOVERNMENT STANDARD
MATERIALSTEEL CORROSION RESISTING OVERALL
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE0.375 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
AS4841Interchangeable
interchangeable cross-reference
interchangeable
AN919-6JInterchangeable
interchangeable cross-reference
interchangeable
AS5174J0604Interchangeable
interchangeable cross-reference
interchangeable
AS5174J0603Interchangeable
interchangeable cross-reference
interchangeable
AN919-5JInterchangeable
interchangeable cross-reference
interchangeable
SAE-AS4841Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS5174?
AS5174 is a ADAPTER,STRAIGHT,TUBE TO BOSS.
What parts can replace AS5174?
There are 8 known substitutes for AS5174: AS4841, AN919-6J, AS5174J0604 and 5 more. Substitute compatibility should be verified for your specific system.
Is AS5174 still available?
AS5174 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026