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JS20839 ✓ Verified by PartsTable
— · PIPE SECTION
WHAT YOU NEED TO KNOW
Schedule = wall thickness, NOT diameter Nominal pipe size != actual OD
Sch 40 and Sch 80 same OD, different wall
PRODUCT OVERVIEW

HOSE ASSEMBLY SET,METALLIC AND N. Key specifications include base_style: WIRE LEADS, DOWN, bulb_style: T (TUBULAR), overall_length: 0.750 INCHES NOMINAL IN, wattage_rating: 0.067 WATTS, bulb_designator: T-2, filling_gas_type: NEON. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-664-1338, 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
JS20839
NSN: 4720-01-664-1338
FSC: 4720
CAGE: 63005 — ROLLS-ROYCE CORPORATION (USA)
SPECIFICATIONS
base_styleWIRE LEADS, DOWN
bulb_styleT (TUBULAR)
overall_length0.750 INCHES NOMINAL IN
wattage_rating0.067 WATTS
bulb_designatorT-2
filling_gas_typeNEON
wire_lead_length2.000 INCHES NOMINAL IN
rated_average_lifeHOURS
light_intensity_levelNOT RATED
average_life_rating_in_hours25000.0
emitted_light_characteristicRED
resistor_rating_and_location100000.000 OHMS EXTERNAL
NSN4720-01-664-1338
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: JS20839 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
118884Interchangeable
interchangeable cross-reference
interchangeable
712282Interchangeable
interchangeable cross-reference
interchangeable
97504X1EInterchangeable
interchangeable cross-reference
interchangeable
954701Interchangeable
interchangeable cross-reference
interchangeable
A9A-120(NE-2E)Interchangeable
interchangeable cross-reference
interchangeable
NE2EInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is JS20839?
JS20839 is a HOSE ASSEMBLY SET,METALLIC AND N.
What parts can replace JS20839?
There are 7 known substitutes for JS20839: 118884, 712282, 97504X1E and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for JS20839?
JS20839 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4720-01-664-1338. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026