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Technical Data Sheet
PartsTable / COMPONENT / 3703-8-8
3703-8-8 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The ELBOW,TUBE is a the manufacturer industrial component. Key specifications include base_style: FOUR PIN INDEXING, bulb_style: T ("U" SHAPED TUBULAR), bulb_diameter: 1.100 INCHES NOMINAL IN, overall_length: 5.200 INCHES NOMINAL IN, voltage_rating: 91.000 VOLTS NOMINAL, wattage_rating: 13.000 WATTS. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-052-3421, 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
3703-8-8
NSN: 4730-00-052-3421
FSC: 4730
CAGE: 30780 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV TUBE FITTINGS DIVISION (USA)
SPECIFICATIONS
base_styleFOUR PIN INDEXING
bulb_styleT ("U" SHAPED TUBULAR)
bulb_diameter1.100 INCHES NOMINAL IN
overall_length5.200 INCHES NOMINAL IN
voltage_rating91.000 VOLTS NOMINAL
wattage_rating13.000 WATTS
bulb_designatorT-4
special_featuresENERGY SAVER; DULUX D ECOLOGIC; LOW MERCURY
rated_average_lifeHOURS
average_life_rating_in_hours10000.0
emitted_light_characteristicWHITE
NSN4730-00-052-3421
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3703-8-8 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
20708Interchangeable
interchangeable cross-reference
interchangeable
407Interchangeable
interchangeable cross-reference
interchangeable
R18Interchangeable
interchangeable cross-reference
interchangeable
503-S 4Interchangeable
interchangeable cross-reference
interchangeable
31116Interchangeable
interchangeable cross-reference
interchangeable
SMB331485-5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3703-8-8?
3703-8-8 is a ELBOW,TUBE.
What parts can replace 3703-8-8?
There are 21 known substitutes for 3703-8-8: 20708, 407, R18 and 18 more. Substitute compatibility should be verified for your specific system.
Is 3703-8-8 still available?
3703-8-8 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026