AS21923 — ADAPTER,STRAIGHT,TUBE TO BOSS

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

AS21923: ADAPTER,STRAIGHT,TUBE TO BOSS.

The ADAPTER,STRAIGHT,TUBE TO BOSS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, seat_angle: 12.0 DEGREES FIRST END, thread_class: 3A CENTER BULKHEAD A, connection_type: THREADED EXTERNAL BOSS SECOND END, connection_style: FLARELESS (TUBE) FIRST END, nominal_thread_size: 0.562 INCHES ALL ENDS IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-052-6401, 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

AS21923

NSN: 4730-00-052-6401
NIINs: 000526401, 000613310, 000613313, 000613315, 000614121, 002028859, 006044995, 006843579, 008071121, 008380764, 012186659
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)

SPECIFICATIONS

material	STEEL COMP 316 OVERALL
seat_angle	12.0 DEGREES FIRST END
thread_class	3A CENTER BULKHEAD A
connection_type	THREADED EXTERNAL BOSS SECOND END
connection_style	FLARELESS (TUBE) FIRST END
nominal_thread_size	0.562 INCHES ALL ENDS IN
nominal_overall_length	1.891 INCHES IN
thread_series_designator	UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
specification/standard_data	96906-MS21923 GOVERNMENT STANDARD
nominal_outside_diameter_tube_accommodated	0.375 INCHES FIRST END IN
NSN	4730-00-052-6401

COMPONENT DIAGRAM

KEY FEATURES

•

CONNECTION STYLE: FLARED W/ GASKET SEAL (BOSS) SECOND END

•

NOMINAL OVERALL LENGTH: 1.750 INCHES IN

•

MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL

•

NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES FIRST END IN

•

NOMINAL THREAD SIZE: 0.438 INCHES FIRST END BULKHEAD IN

•

SEAT ANGLE: 12.0 DEGREES FIRST END

TECHNICAL CHARACTERISTICS

CONNECTION STYLE	FLARED W/ GASKET SEAL (BOSS) SECOND END
CONNECTION STYLE	FLARELESS (TUBE) FIRST END
NOMINAL OVERALL LENGTH	1.750 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATION	66 FED STD ALL MATERIAL RESPONSES OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	0.250 INCHES FIRST END IN
NOMINAL THREAD SIZE	0.438 INCHES FIRST END BULKHEAD IN
NOMINAL THREAD SIZE	0.438 INCHES ALL ENDS IN
SEAT ANGLE	12.0 DEGREES FIRST END
SURFACE TREATMENT	PASSIVATE OVERALL
THREAD CLASS	3A FIRST END BULKHEAD A

SUBSTITUTES & CROSS-REFERENCES 3

MS21923-4SReference document

Same NSN cross-reference

Reference document — Secondary reference

AS18280Reference document

Same NSN cross-reference

Reference document — Secondary reference

SAE-AS18280Reference document

Same NSN cross-reference

Reference document — Design control — primary 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 AS21923?

AS21923 is a ADAPTER,STRAIGHT,TUBE TO BOSS.

What parts can replace AS21923?

There are 3 known substitutes for AS21923: MS21923-4S, AS18280, SAE-AS18280. Substitute compatibility should be verified for your specific system.

What is the NSN for AS21923?

AS21923 is cataloged in the U.S. Government catalog under NSN 4730-00-052-6401. This indicates validated use in U.S. government and defense supply chains.

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AS21923 — ADAPTER,STRAIGHT,TUBE TO BOSS

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