The UNION,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, leg_length: 0.453 INCHES NOMINAL ALL ENDS IN, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL BOSS ALL ENDS, connection_style: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS, style_designator: FLARELESS W/ CENTER WRENCHING FACILITY. This part is cataloged in the U.S.
Government catalog under NSN 4730-00-684-7410, 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
MS21902-4S
NSN:4730-00-684-7410 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 CORROSION RESISTING OVERALL
leg_length
0.453 INCHES NOMINAL ALL ENDS IN
thread_class
3A ALL ENDS A
connection_type
THREADED EXTERNAL BOSS ALL ENDS
connection_style
EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
style_designator
FLARELESS W/ CENTER WRENCHING FACILITY
surface_treatment
PASSIVATE OUTSIDE
nominal_thread_size
0.562 INCHES ALL ENDS IN
nominal_overall_length
1.062 INCHES IN
thread_series_designator
UNIFIED NATIONAL JOINT FINE (UNJF) ALL ENDS
NSN
4730-00-684-7410
COMPONENT DIAGRAM
KEY FEATURES
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.062 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL BOSS ALL ENDS
•
STYLE DESIGNATOR: FLARELESS W/ CENTER WRENCHING FACILITY
•
LEG LENGTH: 0.453 INCHES NOMINAL ALL ENDS IN
•
NOMINAL THREAD SIZE: 0.562 INCHES ALL ENDS IN
•
SURFACE TREATMENT: PASSIVATE INSIDE
TECHNICAL CHARACTERISTICS
CONNECTION STYLE
EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
NOMINAL OVERALL LENGTH
1.062 INCHES IN
CONNECTION TYPE
THREADED EXTERNAL BOSS ALL ENDS
STYLE DESIGNATOR
FLARELESS W/ CENTER WRENCHING FACILITY
LEG LENGTH
0.453 INCHES NOMINAL ALL ENDS IN
NOMINAL THREAD SIZE
0.562 INCHES ALL ENDS IN
SURFACE TREATMENT
PASSIVATE INSIDE
SURFACE TREATMENT
PASSIVATE OUTSIDE
THREAD CLASS
3A ALL ENDS A
MATERIAL
STEEL CORROSION RESISTING OVERALL
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.
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FREQUENTLY ASKED QUESTIONS
What is MS21902-4S?
MS21902-4S is a UNION,TUBE.
What parts can replace MS21902-4S?
There are 2 known substitutes for MS21902-4S: MS21902-4R, SAE-AS18280. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21902-4S?
MS21902-4S is cataloged in the U.S. Government catalog under NSN 4730-00-684-7410. This indicates validated use in U.S. government and defense supply chains.
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