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SS49MC902J4-25R — RESTRICTOR UNIT,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

SS49MC902J4-25R: RESTRICTOR UNIT,FLUID FLOW.

The RESTRICTOR UNIT,FLUID FLOW is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING FILTER, design_type: STRAIGHT, thread_class: 3A ALL CONNECTIONS A, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF) ALL CONNECTIONS, overall_length: 1.062 INCHES NOMINAL IN, orifice_diameter: 0.010 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-170-2438, 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
SS49MC902J4-25R
NSN: 4730-01-170-2438
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING FILTER
design_typeSTRAIGHT
thread_class3A ALL CONNECTIONS A
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF) ALL CONNECTIONS
overall_length1.062 INCHES NOMINAL IN
orifice_diameter0.010 INCHES NOMINAL IN
thread_directionRIGHT-HAND ALL CONNECTIONS
width_across_flats0.500 INCHES NOMINAL IN
end_connection_typeTHREADED MALE, FLARELESS TUBE ALL CONNECTIONS
thread_size_designator7/16-20 ALL CONNECTIONS
end_connection_similarityIDENTICAL
strainer_type_and_quantity1 FILTER
NSN4730-01-170-2438
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: SS49MC902J4-25R · 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: 0.500 INCHES NOMINAL IN
•
STRAINER TYPE AND QUANTITY: 1 FILTER
•
END CONNECTION COMPONENT TYPE AND SIZE FOR WHICH DESIGNED: 1/4 IN. OD TUBE IN
•
DESIGN TYPE: STRAIGHT
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF) ALL CONNECTIONS
•
END CONNECTION TYPE: THREADED MALE, FLARELESS TUBE ALL CONNECTIONS
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66, AISI 304L/SAE 30304 FED STD SINGLE MATERIAL RESPONSE BODY
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.500 INCHES NOMINAL IN
STRAINER TYPE AND QUANTITY1 FILTER
END CONNECTION COMPONENT TYPE AND SIZE FOR WHICH DESIGNED1/4 IN. OD TUBE IN
DESIGN TYPESTRAIGHT
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF) ALL CONNECTIONS
END CONNECTION TYPETHREADED MALE, FLARELESS TUBE ALL CONNECTIONS
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66, AISI 304L/SAE 30304 FED STD SINGLE MATERIAL RESPONSE BODY
OVERALL LENGTH1.062 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND ALL CONNECTIONS
THREAD SIZE DESIGNATOR7/16-20 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 2
SS49Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
JSFA25900204JRSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 SS49MC902J4-25R?
SS49MC902J4-25R is a RESTRICTOR UNIT,FLUID FLOW.
What parts can replace SS49MC902J4-25R?
There are 2 known substitutes for SS49MC902J4-25R: SS49, JSFA25900204JR. Substitute compatibility should be verified for your specific system.
What is the NSN for SS49MC902J4-25R?
SS49MC902J4-25R is cataloged in the U.S. Government catalog under NSN 4730-01-170-2438. 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.