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Technical Data Sheet
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189718 ✓ 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 PACKING NUT is a the manufacturer industrial component. Key specifications include material: STEEL, special_features: MATERIAL SPEC ASTM A 107-59T. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-213-0123, 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
189718
NSN: 4730-01-213-0123
FSC: 4730
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialSTEEL
special_featuresMATERIAL SPEC ASTM A 107-59T
NSN4730-01-213-0123
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 189718 · 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
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL
SPECIAL FEATURESMATERIAL SPEC ASTM A 107-59T
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
RW-132847Interchangeable
interchangeable cross-reference
interchangeable
18107PInterchangeable
interchangeable cross-reference
interchangeable
33900Interchangeable
interchangeable cross-reference
interchangeable
18110P-A0Interchangeable
interchangeable cross-reference
interchangeable
364872-00Interchangeable
interchangeable cross-reference
interchangeable
18110PInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 189718?
189718 is a PACKING NUT.
What parts can replace 189718?
There are 12 known substitutes for 189718: RW-132847, 18107P, 33900 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 189718?
189718 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-213-0123. 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