MS21903J6 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

MS21903J6: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, seat_angle: 12.0 DEGREES FIRST END, thread_class: 3A CENTER BULKHEAD A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARELESS (TUBE) FIRST END, surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-720-1586, 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

MS21903J6

NSN: 4730-00-720-1586
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M

SPECIFICATIONS

material	STEEL COMP 304 OVERALL
seat_angle	12.0 DEGREES FIRST END
thread_class	3A CENTER BULKHEAD A
connection_type	THREADED EXTERNAL TUBE FIRST END
connection_style	FLARELESS (TUBE) FIRST END
surface_treatment	PASSIVATE OVERALL
nominal_thread_size	0.562 INCHES ALL ENDS IN
maximum_operating_temp	135.0 CELSIUS SINGLE RESPONSE DEGC
nominal_overall_length	1.797 INCHES IN
thread_series_designator	UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
material_document_and_classification	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated	0.375 INCHES FIRST END IN
NSN	4730-00-720-1586

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE

•

CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END

•

NOMINAL OVERALL LENGTH: 1.797 INCHES IN

•

CONNECTION TYPE: THREADED EXTERNAL TUBE FIRST END

•

MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-F-14072,E300,TY 2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
CONNECTION STYLE	EXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
CONNECTION STYLE	FLARELESS (TUBE) FIRST END
NOMINAL OVERALL LENGTH	1.797 INCHES IN
CONNECTION TYPE	THREADED EXTERNAL TUBE FIRST END
CONNECTION TYPE	THREADED EXTERNAL BOSS SECOND END
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	0.375 INCHES FIRST END IN
NOMINAL THREAD SIZE	0.562 INCHES CENTER BULKHEAD IN

OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008

SUBSTITUTES & CROSS-REFERENCES 6

MS21924J6Reference document

Same NSN cross-reference

Reference document — Secondary reference

MS21924-6CReference document

Same NSN cross-reference

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

AS21924Reference document

Same NSN cross-reference

Reference document — Secondary reference

4730PL1340746Reference document

Same NSN cross-reference

Reference document — Informative reference only

SAE-AS18280Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

MS21924C6Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MS21903J6?

MS21903J6 is a ADAPTER,STRAIGHT,TUBE TO BOSS.

What parts can replace MS21903J6?

There are 6 known substitutes for MS21903J6: MS21924J6, MS21924-6C, AS21924 and 3 more. Substitute compatibility should be verified for your specific system.

What is the NSN for MS21903J6?

MS21903J6 is cataloged in the U.S. Government catalog under NSN 4730-00-720-1586. This indicates validated use in U.S. government and defense supply chains.

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MS21903J6 — ADAPTER,STRAIGHT,TUBE TO BOSS

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