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259640 ✓ 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 ELBOW,FLANGE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, point_type: SPLIT, point_angle: 118.0 DEGREES NOMINAL, shank_style: STRAIGHT ROUND, flute_length: 2.312 INCHES NOMINAL IN, overall_length: 3.500 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 4730-00-775-4219, 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
259640
NSN: 4730-00-775-4219
FSC: 4730
CAGE: 62983 — EATON AEROSPACE, LLC DBA JACKSON SOUTH (USA)
SPECIFICATIONS
materialSTEEL OVERALL
point_typeSPLIT
point_angle118.0 DEGREES NOMINAL
shank_styleSTRAIGHT ROUND
flute_length2.312 INCHES NOMINAL IN
flute_quantity2
overall_length3.500 INCHES NOMINAL IN
shank_diameter0.191 INCHES NOMINAL IN
special_featuresJOBBERS LG; WIRE SIZE 11
cutting_end_styleGENERAL PURPOSE
surface_treatmentOXIDE FILM OVERALL
nominal_cutting_diameter0.1910 INCHES IN
NSN4730-00-775-4219
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 259640 · 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
•
FLANGE FACE DESIGN: RAISED WITH CURVE AND COUNTERBORE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.625 INCHES FIRST END IN
•
MATERIAL: ALUMINUM ALLOY OVERALL
•
LEG LENGTH: 0.665 INCHES NOMINAL SECOND END IN
•
NOMINAL LENGTH: 2.937 INCHES SECOND END IN
•
FLANGE SHAPE: RECTANGULAR WITH HOLES SECOND END
•
CENTER TO CENTER NOMINAL DISTANCE BETWEEN BOLT HOLES ALONG LENGTH: 1.687 INCHES SECOND END IN
•
NOMINAL WIDTH: 2.937 INCHES SECOND END IN
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE FACE DESIGNRAISED WITH CURVE AND COUNTERBORE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.625 INCHES FIRST END IN
MATERIALALUMINUM ALLOY OVERALL
LEG LENGTH0.665 INCHES NOMINAL SECOND END IN
NOMINAL LENGTH2.937 INCHES SECOND END IN
FLANGE SHAPERECTANGULAR WITH HOLES SECOND END
CENTER TO CENTER NOMINAL DISTANCE BETWEEN BOLT HOLES ALONG LENGTH1.687 INCHES SECOND END IN
NOMINAL WIDTH2.937 INCHES SECOND END IN
BOLT HOLE NOMINAL DIAMETER0.281 INCHES SECOND END IN
RAISED FACE NOMINAL DIAMETER1.823 INCHES SECOND END IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
24219Interchangeable
interchangeable cross-reference
interchangeable
18111Interchangeable
interchangeable cross-reference
interchangeable
NAS907Interchangeable
interchangeable cross-reference
interchangeable
213493Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 259640?
259640 is a ELBOW,FLANGE TO TUBE.
What parts can replace 259640?
There are 4 known substitutes for 259640: 24219, 18111, NAS907 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 259640?
259640 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-775-4219. 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