PartsTable
Technical Data Sheet
PartsTable / COMPONENT / MS20819-6J
MS20819-6J ✓ 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 SLEEVE,FLARED,TUBE FITTING is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304, flange_width: 0.172 INCHES NOMINAL IN, overall_length: 0.500 INCHES NOMINAL IN, style_designator: SLEEVE, seat_angle_in_deg: 33.0, surface_treatment: PASSIVATE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-595-3102, 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
MS20819-6J
NSN: 4730-00-595-3102
FSC: 4730
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 304
flange_width0.172 INCHES NOMINAL IN
overall_length0.500 INCHES NOMINAL IN
style_designatorSLEEVE
seat_angle_in_deg33.0
surface_treatmentPASSIVATE
casehardening_indicatorNOT CASEHARDENED
end_item_identificationCOMMUNICATIONS SATELLITE TERMINAL MODEL AN/TSC-54, BOEING VERTOL CARGO TRANSPORT HEL, MODEL CH-47, UTILITY, TACTICAL TRANSPORT UH-1 AND EH-1 (BELL), LAND VEHICLE LVT-7, PRS MGM-31, F161 F18 AIRCRAFT
flange_outside_diameter0.502 INCHES NOMINAL IN
sleeve_outside_diameter0.432 INCHES NOMINAL IN
specification/standard_data81349-MIL-F-5509 GOVERNMENT SPECIFICATION
hose/tube_outside_diameter_for_which_designed0.375 INCHES NOMINAL IN
NSN4730-00-595-3102
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS20819-6J · 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
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
SPECIFICATION/STANDARD DATA: 81349-MIL-F-5509 GOVERNMENT SPECIFICATION
•
FLANGE OUTSIDE DIAMETER: 0.502 INCHES NOMINAL IN
•
SLEEVE OUTSIDE DIAMETER: 0.432 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 33.0
•
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 0.375 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CASEHARDENING INDICATORNOT CASEHARDENED
OVERALL LENGTH0.500 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA81349-MIL-F-5509 GOVERNMENT SPECIFICATION
FLANGE OUTSIDE DIAMETER0.502 INCHES NOMINAL IN
END ITEM IDENTIFICATIONCOMMUNICATIONS SATELLITE TERMINAL MODEL AN/TSC-54, BOEING VERTOL CARGO TRANSPORT HEL, MODEL CH-47, UTILITY, TACTICAL TRANSPORT UH-1 AND EH-1 (BELL), LAND VEHICLE LVT-7, PRS MGM-31, F161 F18 AIRCRAFT
SLEEVE OUTSIDE DIAMETER0.432 INCHES NOMINAL IN
SEAT ANGLE IN DEG33.0
HOSE/TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED0.375 INCHES NOMINAL IN
FLANGE WIDTH0.172 INCHES NOMINAL IN
SURFACE TREATMENTPASSIVATE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
50100426Interchangeable
interchangeable cross-reference
interchangeable
339044Interchangeable
interchangeable cross-reference
interchangeable
MC4344LInterchangeable
interchangeable cross-reference
interchangeable
GGG-W-644Interchangeable
interchangeable cross-reference
interchangeable
47936Interchangeable
interchangeable cross-reference
interchangeable
GGG-W-644 TY4SZ7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
Ready to buy MS20819-6J?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is MS20819-6J?
MS20819-6J is a SLEEVE,FLARED,TUBE FITTING.
What parts can replace MS20819-6J?
There are 13 known substitutes for MS20819-6J: 50100426, 339044, MC4344L and 10 more. Substitute compatibility should be verified for your specific system.
Is MS20819-6J still available?
MS20819-6J is currently cancelled.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — MS20819-6J

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026