MIL-DTL-18866 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

MIL-DTL-18866: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, flow_angle: 45.0 DEGREES, leg_length: 1.220 INCHES MINIMUM AND 1.280 INCHES MAXIMUM FIRST END IN, seat_angle: 12.0 DEGREES FIRST END, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-003-5919, 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

MIL-DTL-18866

NSN: 4730-00-003-5919
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FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

material	STEEL CORROSION RESISTING OVERALL
flow_angle	45.0 DEGREES
leg_length	1.220 INCHES MINIMUM AND 1.280 INCHES MAXIMUM FIRST END IN
seat_angle	12.0 DEGREES FIRST END
thread_class	2A FIRST END A
connection_type	THREADED EXTERNAL PIPE SECOND END
connection_style	FLARELESS (TUBE) FIRST END
style_designator	ELBOW
surface_treatment	PASSIVATE OVERALL
operating_pressure	3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size	0.500 INCHES FIRST END IN
maximum_operating_temp	250.0 FAHRENHEIT SINGLE RESPONSE DEGF
NSN	4730-00-003-5919

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: J514 ASSN STD SINGLE TREATMENT RESPONSE AND QQ-P-416, TY 2, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL

•

CONNECTION STYLE: FLARELESS (TUBE) FIRST END

•

NOMINAL OVERALL LENGTH: 1.120 INCHES IN

•

NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN

•

OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS

•

NOMINAL THREAD SIZE: 0.125 INCHES SECOND END IN

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	J514 ASSN STD SINGLE TREATMENT RESPONSE AND QQ-P-416, TY 2, CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLE	FLARELESS (TUBE) FIRST END
CONNECTION STYLE	PLAIN (PIPE) SECOND END
NOMINAL OVERALL LENGTH	1.120 INCHES IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	0.250 INCHES FIRST END IN
OPERATING PRESSURE	3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
NOMINAL THREAD SIZE	0.125 INCHES SECOND END IN
NOMINAL THREAD SIZE	0.438 INCHES FIRST END IN
SEAT ANGLE	12.0 DEGREES FIRST END
SPECIFICATION/STANDARD DATA	96906-MS51819 GOVERNMENT STANDARD AND 81343-J514 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD

SUBSTITUTES & CROSS-REFERENCES 8

MS51819-33Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

J514Reference document

Same NSN cross-reference

Reference document — Secondary reference

8205X4Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

906120-4Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

MS51819-3Reference document

Same NSN cross-reference

Reference document — Secondary reference

P413Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MIL-DTL-18866?

MIL-DTL-18866 is a ADAPTER,STRAIGHT,TUBE TO BOSS.

What parts can replace MIL-DTL-18866?

There are 8 known substitutes for MIL-DTL-18866: MS51819-33, J514, 8205X4 and 5 more. Substitute compatibility should be verified for your specific system.

What is the NSN for MIL-DTL-18866?

MIL-DTL-18866 is cataloged in the U.S. Government catalog under NSN 4730-00-003-5919. This indicates validated use in U.S. government and defense supply chains.

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MIL-DTL-18866 — ADAPTER,STRAIGHT,TUBE TO BOSS

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