The UNION,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OR STEEL COMP 304 OVERALL, 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 OVERALL. This part is cataloged in the U.S.
Government catalog under NSN 4730-01-316-6345, 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
MS21902K20
NSN:4730-01-316-6345 FSC:4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings CAGE:0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
material
STEEL COMP 316 OR STEEL COMP 304 OVERALL
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 OVERALL
nominal_thread_size
1.625 INCHES ALL ENDS IN
nominal_overall_length
1.750 INCHES IN
thread_quantity_per_inch
12 ALL ENDS
thread_series_designator
UNIFIED NATIONAL JOINT (UNJ) ALL ENDS
material_document_and_classification
QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classification
MIL-S-5002 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-P-35,TY 1 FED SPEC 2ND TREATMENT RESPONSE OVERALL
NSN
4730-01-316-6345
COMPONENT DIAGRAM
KEY FEATURES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-P-35,TY 1 FED SPEC 2ND TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.750 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL BOSS ALL ENDS
•
STYLE DESIGNATOR: FLARELESS W/ CENTER WRENCHING FACILITY
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 1.625 INCHES ALL ENDS IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION
MIL-S-5002 MIL SPEC 1ST TREATMENT RESPONSE AND QQ-P-35,TY 1 FED SPEC 2ND TREATMENT RESPONSE OVERALL
CONNECTION STYLE
EXTERNAL SEAT FOR GASKET SEAL (BOSS) ALL ENDS
NOMINAL OVERALL LENGTH
1.750 INCHES IN
CONNECTION TYPE
THREADED EXTERNAL BOSS ALL ENDS
STYLE DESIGNATOR
FLARELESS W/ CENTER WRENCHING FACILITY
MATERIAL DOCUMENT AND CLASSIFICATION
QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE
1.625 INCHES ALL ENDS IN
SURFACE TREATMENT
PASSIVATE OVERALL
THREAD CLASS
3A ALL ENDS A
THREAD QUANTITY PER INCH
12 ALL ENDS
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 MS21902K20?
MS21902K20 is a UNION,TUBE.
What parts can replace MS21902K20?
There is 1 known substitute for MS21902K20: SAE-AS18280. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21902K20?
MS21902K20 is cataloged in the U.S. Government catalog under NSN 4730-01-316-6345. This indicates validated use in U.S. government and defense supply chains.
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