PartsTable
Technical Data Sheet
21778 ✓ 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 ROTOR,IGNITION DISTRIBUTOR is a the manufacturer industrial component. Key specifications include base_style: MEDIUM BIPIN (FLUORESCENT), bulb_style: T (TUBULAR), overall_length: 24.000 INCHES NOMINAL IN, wattage_rating: 17.000 WATTS, bulb_designator: T-8, special_features: ECOLOGIC FLUORESCENT LAMP DESIGNED TO SATISFY THE FEDERAL TOXIC CHARACTERISTIC LEACHING PROCEDURE CRITERIA. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-226-8418, 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
21778
NSN: 4730-00-226-8418
FSC: 4730
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
base_styleMEDIUM BIPIN (FLUORESCENT)
bulb_styleT (TUBULAR)
overall_length24.000 INCHES NOMINAL IN
wattage_rating17.000 WATTS
bulb_designatorT-8
special_featuresECOLOGIC FLUORESCENT LAMP DESIGNED TO SATISFY THE FEDERAL TOXIC CHARACTERISTIC LEACHING PROCEDURE CRITERIA
rated_average_lifeHOURS
starting_characteristicRAPID
average_life_rating_in_hours24.000
emitted_light_characteristicWHITE
environmental_attribute_codeFLUORESCENT LAMPS - FEMP-LIGHTING - ENERGY EFFICIENT PRODUCTS
NSN4730-00-226-8418
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 21778 · 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
MATERIAL: STEEL CORROSION RESISTING
PERFORATION QUANTITY: 400.0 PER SQUARE INCH
STYLE DESIGNATOR: CYLINDRICAL
END CONNECTION TYPE: PLAIN FIRST END
FILTERING MEDIA DESIGN: PERFORATED
LENGTH: 3.000 INCHES NOMINAL IN
ELEMENT OUTSIDE DIAMETER: 1.156 INCHES NOMINAL IN
PERFORATION DIAMETER: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING
PERFORATION QUANTITY400.0 PER SQUARE INCH
STYLE DESIGNATORCYLINDRICAL
END CONNECTION TYPEPLAIN FIRST END
FILTERING MEDIA DESIGNPERFORATED
LENGTH3.000 INCHES NOMINAL IN
ELEMENT OUTSIDE DIAMETER1.156 INCHES NOMINAL IN
PERFORATION DIAMETER0.031 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
588 NO 8Interchangeable
interchangeable cross-reference
interchangeable
21778Interchangeable
interchangeable cross-reference
interchangeable
4240-9108Interchangeable
interchangeable cross-reference
interchangeable
334-1000Interchangeable
interchangeable cross-reference
interchangeable
09-21778Interchangeable
interchangeable cross-reference
interchangeable
2177802Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 21778?
21778 is a ROTOR,IGNITION DISTRIBUTOR.
What parts can replace 21778?
There are 9 known substitutes for 21778: 588 NO 8, 21778, 4240-9108 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 21778?
21778 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-226-8418. This indicates validated use in U.S. government and defense supply chains.
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