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2519183 ✓ 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 PLUG,TUBE FITTING,THREADED is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, thread_class: 2B INTERNAL, connection_style: PRESSURE SEAL FLARED, thread_direction: RIGHT-HAND INTERNAL, nominal_thread_size: 0.250 INCHES INTERNAL IN, thread_series_designator: UNF INTERNAL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-140-4484, 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
2519183
NSN: 4730-00-140-4484
FSC: 4730
CAGE: 30003 — NAVAL AIR SYSTEMS COMMAND MANAGED ORIGINAL DESIGN ACTIVITY NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
thread_class2B INTERNAL
connection_stylePRESSURE SEAL FLARED
thread_directionRIGHT-HAND INTERNAL
nominal_thread_size0.250 INCHES INTERNAL IN
thread_series_designatorUNF INTERNAL
NSN4730-00-140-4484
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2519183 · 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
•
THREAD CLASS: 2B INTERNAL
•
THREAD SERIES DESIGNATOR: UNF INTERNAL
•
THREAD DIRECTION: RIGHT-HAND INTERNAL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
CONNECTION STYLE: PRESSURE SEAL FLARED
•
NOMINAL THREAD SIZE: 0.250 INCHES INTERNAL IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD CLASS2B INTERNAL
THREAD SERIES DESIGNATORUNF INTERNAL
THREAD DIRECTIONRIGHT-HAND INTERNAL
MATERIALSTEEL CORROSION RESISTING OVERALL
CONNECTION STYLEPRESSURE SEAL FLARED
NOMINAL THREAD SIZE0.250 INCHES INTERNAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
400PInterchangeable
interchangeable cross-reference
interchangeable
SL5295PC3Interchangeable
interchangeable cross-reference
interchangeable
298066Interchangeable
interchangeable cross-reference
interchangeable
SS-4-DF PLUGInterchangeable
interchangeable cross-reference
interchangeable
TF188-1112Interchangeable
interchangeable cross-reference
interchangeable
SS4-1F-PLUGInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2519183?
2519183 is a PLUG,TUBE FITTING,THREADED.
What parts can replace 2519183?
There are 10 known substitutes for 2519183: 400P, SL5295PC3, 298066 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2519183?
2519183 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-140-4484. 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