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Technical Data Sheet
PartsTable / COMPONENT / 523191
523191 ✓ 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

VANE,COMPRESSOR,AIRCRAFT GAS TUR. Key specifications include color: RED LENS, material: PLASTIC POLYCARBONATE LENS, thread_class: 2A A, thread_length: 0.187 INCHES NOMINAL IN, thread_series: UNS, overall_length: 0.625 INCHES NOMINAL 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 4730-00-604-4170, 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
523191
NSN: 4730-00-604-4170
FSC: 4730
CAGE: 02978 — RENK AMERICA LLC DIV RENK AMERICA (USA)
SPECIFICATIONS
colorRED LENS
materialPLASTIC POLYCARBONATE LENS
thread_class2A A
thread_length0.187 INCHES NOMINAL IN
thread_seriesUNS
overall_length0.625 INCHES NOMINAL IN
mounting_methodEXTERNAL THREAD
thread_diameter0.562 INCHES IN
thread_quantity27 PER INCH
effective_length0.438 INCHES NOMINAL IN
overall_diameter0.625 INCHES NOMINAL IN
style_designatorSTOVEPIPE
NSN4730-00-604-4170
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 523191 · 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
•
MEDIA FOR WHICH DESIGNED: GAS THIRD RESPONSE
•
NOMINAL THREAD SIZE: 0.125 INCHES FIRST END IN
•
THREAD SERIES DESIGNATOR: NPTF FIRST END
•
MATERIAL: STEEL COMP 1116 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1119 OVERALL
•
OPERATING PRESSURE: 300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS (FLIS)
MEDIA FOR WHICH DESIGNEDGAS THIRD RESPONSE
NOMINAL THREAD SIZE0.125 INCHES FIRST END IN
MEDIA FOR WHICH DESIGNEDSTEAM FIRST RESPONSE
THREAD SERIES DESIGNATORNPTF FIRST END
NOMINAL THREAD SIZE0.125 INCHES SECOND END IN
THREAD SERIES DESIGNATORNPTF SECOND END
MATERIALSTEEL COMP 1116 OR STEEL COMP 1117 OR STEEL COMP 1118 OR STEEL COMP 1119 OVERALL
OPERATING PRESSURE300.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
STYLE DESIGNATORRIGID, THREADED INTERNAL AND EXTERNAL
SURFACE TREATMENTCADMIUM OUTSIDE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
704281Interchangeable
interchangeable cross-reference
interchangeable
730791Interchangeable
interchangeable cross-reference
interchangeable
523191Interchangeable
interchangeable cross-reference
interchangeable
30120-0Interchangeable
interchangeable cross-reference
interchangeable
30130-0Interchangeable
interchangeable cross-reference
interchangeable
0RB0130Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 523191?
523191 is a VANE,COMPRESSOR,AIRCRAFT GAS TUR.
What parts can replace 523191?
There are 8 known substitutes for 523191: 704281, 730791, 523191 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 523191?
523191 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-604-4170. 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