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SS49MC902-4J19R — RESTRICTOR UNIT,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

SS49MC902-4J19R: RESTRICTOR UNIT,FLUID FLOW.

The RESTRICTOR UNIT,FLUID FLOW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING SCREENING, valve_size: 0.437 INCHES IN, design_type: STRAIGHT, thread_class: 2A ALL CONNECTIONS A, thread_series: UNF ALL CONNECTIONS, overall_length: 1.062 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-933-1990, 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
SS49MC902-4J19R
NSN: 4730-00-933-1990
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING SCREENING
valve_size0.437 INCHES IN
design_typeSTRAIGHT
thread_class2A ALL CONNECTIONS A
thread_seriesUNF ALL CONNECTIONS
overall_length1.062 INCHES NOMINAL IN
orifice_diameter0.109 INCHES NOMINAL IN
thread_directionRIGHT-HAND ALL CONNECTIONS
width_across_flats0.688 INCHES NOMINAL IN
end_connection_typeTHREADED MALE, FLARELESS TUBE ALL CONNECTIONS
thread_size_designatorT/16-20 ALL CONNECTIONS
end_connection_similarityIDENTICAL
NSN4730-00-933-1990
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SS49MC902-4J19R · 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
•
WIDTH ACROSS FLATS: 0.688 INCHES NOMINAL IN
•
STRAINER TYPE AND QUANTITY: 1 SCREEN
•
END CONNECTION COMPONENT TYPE AND SIZE FOR WHICH DESIGNED: 1/4 IN. TUBE SIZE IN
•
DESIGN TYPE: STRAIGHT
•
THREAD SERIES: UNF ALL CONNECTIONS
•
END CONNECTION TYPE: THREADED MALE, FLARELESS TUBE ALL CONNECTIONS
•
VALVE SIZE: 0.437 INCHES IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.688 INCHES NOMINAL IN
STRAINER TYPE AND QUANTITY1 SCREEN
END CONNECTION COMPONENT TYPE AND SIZE FOR WHICH DESIGNED1/4 IN. TUBE SIZE IN
DESIGN TYPESTRAIGHT
THREAD SERIESUNF ALL CONNECTIONS
END CONNECTION TYPETHREADED MALE, FLARELESS TUBE ALL CONNECTIONS
OVERALL LENGTH1.062 INCHES NOMINAL IN
VALVE SIZE0.437 INCHES IN
THREAD DIRECTIONRIGHT-HAND ALL CONNECTIONS
THREAD SIZE DESIGNATORT/16-20 ALL CONNECTIONS
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 1
SS49MC902-4C19RReference 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 SS49MC902-4J19R?
SS49MC902-4J19R is a RESTRICTOR UNIT,FLUID FLOW.
What parts can replace SS49MC902-4J19R?
There is 1 known substitute for SS49MC902-4J19R: SS49MC902-4C19R. Substitute compatibility should be verified for your specific system.
What is the NSN for SS49MC902-4J19R?
SS49MC902-4J19R is cataloged in the U.S. Government catalog under NSN 4730-00-933-1990. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.