MS21905-16D — TEE,TUBE

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

MS21905-16D: TEE,TUBE.

The TEE,TUBE is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 7075 OVERALL, leg_length: 1.719 INCHES MINIMUM AND 1.766 INCHES MAXIMUM ALL ENDS IN, seat_angle: 12.0 DEGREES SECOND END, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE FIRST END, connection_style: FLARELESS (TUBE) FIRST END. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-640-0822, 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

MS21905-16D

NSN: 4730-00-640-0822
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	ALUMINUM ALLOY 7075 OVERALL
leg_length	1.719 INCHES MINIMUM AND 1.766 INCHES MAXIMUM ALL ENDS IN
seat_angle	12.0 DEGREES SECOND END
thread_class	3A ALL ENDS A
connection_type	THREADED EXTERNAL TUBE FIRST END
connection_style	FLARELESS (TUBE) FIRST END
surface_treatment	ANODIZE OVERALL
nominal_thread_size	1.312 INCHES ALL ENDS IN
end_item_identification	USED ON CHINOOK HELICOPTER CH-47
thread_quantity_per_inch	12 ALL ENDS
thread_series_designator	UNIFIED NATIONAL JOINT (UNJ) ALL ENDS
specification/standard_data	81343-AS21905 MANUFACTURERS STANDARD
NSN	4730-00-640-0822

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

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

•

CONNECTION TYPE: THREADED EXTERNAL BOSS THIRD END

•

NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 1.000 INCHES SECOND END IN

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-A-8625,TYPE 2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLE	EXTERNAL SEAT FOR GASKET SEAL (BOSS) THIRD END
CONNECTION STYLE	FLARELESS (TUBE) SECOND END
CONNECTION STYLE	FLARELESS (TUBE) FIRST END
CONNECTION TYPE	THREADED EXTERNAL BOSS THIRD END
CONNECTION TYPE	THREADED EXTERNAL TUBE FIRST END
CONNECTION TYPE	THREADED EXTERNAL TUBE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	1.000 INCHES SECOND END IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	1.000 INCHES FIRST END IN
LEG LENGTH	1.719 INCHES MINIMUM AND 1.766 INCHES MAXIMUM ALL ENDS IN

SUBSTITUTES & CROSS-REFERENCES 5

ER824D16Reference document

Same NSN cross-reference

Reference document — Secondary reference

AS21905Reference document

Same NSN cross-reference

Reference document — Secondary reference

MS21905W16Reference document

Same NSN cross-reference

Reference document — Secondary reference

SAE-AS18280Reference document

Same NSN cross-reference

Reference document — Design control — primary reference

MS21905D16Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is MS21905-16D?

MS21905-16D is a TEE,TUBE.

What parts can replace MS21905-16D?

There are 5 known substitutes for MS21905-16D: ER824D16, AS21905, MS21905W16 and 2 more. Substitute compatibility should be verified for your specific system.

What is the NSN for MS21905-16D?

MS21905-16D is cataloged in the U.S. Government catalog under NSN 4730-00-640-0822. This indicates validated use in U.S. government and defense supply chains.

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