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MS21904-6C — ELBOW,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

MS21904-6C: ELBOW,TUBE.

The ELBOW,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, flow_angle: 90.0 DEGREES, leg_length: 1.031 INCHES MINIMUM AND 1.078 INCHES MAXIMUM ALL ENDS IN, seat_angle: 12.0 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-690-9019, 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
MS21904-6C
NSN: 4730-00-690-9019
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
materialSTEEL COMP 304 OVERALL
flow_angle90.0 DEGREES
leg_length1.031 INCHES MINIMUM AND 1.078 INCHES MAXIMUM ALL ENDS IN
seat_angle12.0 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDS
surface_treatmentPASSIVATE OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.562 INCHES ALL ENDS IN
maximum_operating_temp135.0 FAHRENHEIT SINGLE RESPONSE DEGF
media_for_which_designedFLUID SINGLE RESPONSE
NSN4730-00-690-9019
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: MS21904-6C · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FLOW ANGLE: 90.0 DEGREES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
•
CONNECTION STYLE: FLARELESS (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.375 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
TECHNICAL CHARACTERISTICS
FLOW ANGLE90.0 DEGREES
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-F-14072,E300,TY2 MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
CONNECTION STYLEFLARELESS (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.375 INCHES ALL ENDS IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH1.031 INCHES MINIMUM AND 1.078 INCHES MAXIMUM ALL ENDS IN
NOMINAL THREAD SIZE0.562 INCHES ALL ENDS 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 4
AP2851J06Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS21904J6Reference document
Same NSN cross-reference
Reference document — Secondary reference
329304P01Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 MS21904-6C?
MS21904-6C is a ELBOW,TUBE.
What parts can replace MS21904-6C?
There are 4 known substitutes for MS21904-6C: AP2851J06, MS21904J6, 329304P01 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21904-6C?
MS21904-6C is cataloged in the U.S. Government catalog under NSN 4730-00-690-9019. This indicates validated use in U.S. government and defense supply chains.
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