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JSFA2190904JS — SWITCH,RADIO FREQUENCY TRANSMISS

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

JSFA2190904JS: SWITCH,RADIO FREQUENCY TRANSMISS.

SWITCH,RADIO FREQUENCY TRANSMISS. Key specifications include material: STEEL COMP 304 OVERALL, leg_length: 0.938 INCHES NOMINAL FIRST END IN, seat_angle: 12.0 DEGREES ALL ENDS, thread_class: 3A ALL ENDS A, connection_type: THREADED EXTERNAL TUBE ALL ENDS, connection_style: FLARELESS (TUBE) ALL ENDS. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-170-2440, 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
JSFA2190904JS
NSN: 4730-01-170-2440
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 92555 — THE LEE CO DBA THE LEE CO (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
leg_length0.938 INCHES NOMINAL FIRST END IN
seat_angle12.0 DEGREES ALL ENDS
thread_class3A ALL ENDS A
connection_typeTHREADED EXTERNAL TUBE ALL ENDS
connection_styleFLARELESS (TUBE) ALL ENDS
special_featuresCOLOR YELLOW; FILTERED RESTRICTOR 0.197 IN. DIA,0.550 IN. LG IN
surface_treatmentPAINT OVERALL
operating_pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
nominal_thread_size0.437 INCHES THIRD END BULKHEAD IN
end_item_identificationSIKORSKY HELICOPTER
thread_series_designatorUNIFIED NATIONAL JOINT FINE (UNJF) THIRD END BULKHEAD
NSN4730-01-170-2440
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: JSFA2190904JS · 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
•
FURNISHED ITEMS AND QUANTITY: 1 RESTRICTOR
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-22750 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
•
CONNECTION STYLE: FLARELESS (TUBE) ALL ENDS
•
CONNECTION TYPE: THREADED EXTERNAL TUBE ALL ENDS
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.250 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
•
LEG LENGTH: 1.500 INCHES NOMINAL THIRD END IN
TECHNICAL CHARACTERISTICS
FURNISHED ITEMS AND QUANTITY1 RESTRICTOR
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-22750 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLEFLARELESS (TUBE) ALL ENDS
CONNECTION TYPETHREADED EXTERNAL TUBE ALL ENDS
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.250 INCHES ALL ENDS IN
OPERATING PRESSURE3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
LEG LENGTH1.500 INCHES NOMINAL THIRD END IN
LEG LENGTH0.938 INCHES NOMINAL FIRST END IN
LEG LENGTH0.938 INCHES NOMINAL SECOND END IN
REDUCED PASSAGE NOMINAL INSIDE DIAMETER0.018 INCHES THIRD END BULKHEAD 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 2
SS49Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
SS49MC909J4-21SSame 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 JSFA2190904JS?
JSFA2190904JS is a SWITCH,RADIO FREQUENCY TRANSMISS.
What parts can replace JSFA2190904JS?
There are 2 known substitutes for JSFA2190904JS: SS49, SS49MC909J4-21S. Substitute compatibility should be verified for your specific system.
What is the NSN for JSFA2190904JS?
JSFA2190904JS is cataloged in the U.S. Government catalog under NSN 4730-01-170-2440. This indicates validated use in U.S. government and defense supply chains.
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