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Technical Data Sheet
PartsTable / COMPONENT / 104263
104263 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The ELECTRON TUBE is a the manufacturer industrial component. Key specifications include tube_type: KLYSTRON, head_style: FILLISTER, head_height: 0.130 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.313 INCHES NOMINAL IN, thread_length: 0.500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-797-0803, 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
104263
NSN: 5315-00-797-0803
FSC: 5315
CAGE: 10237 — CADILLAC GAGE TEXTRON INC. (USA)
SPECIFICATIONS
tube_typeKLYSTRON
head_styleFILLISTER
head_height0.130 INCHES NOMINAL IN
thread_class2A A
head_diameter0.313 INCHES NOMINAL IN
thread_length0.500 INCHES NOMINAL IN
screw_materialCOPPER ALLOY
fastener_length0.500 INCHES NOMINAL IN
special_featuresPART OF A 291 JET ASSEMBLY
thread_directionRIGHT-HAND
internal_drive_styleSLOT
end_item_identificationWATER PROPELLING JET, HAMILTON MARINE, MODEL 291 JET
NSN5315-00-797-0803
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 104263 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
104263Interchangeable
interchangeable cross-reference
interchangeable
2919Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 104263?
104263 is a ELECTRON TUBE.
What parts can replace 104263?
There are 2 known substitutes for 104263: 104263, 2919. Substitute compatibility should be verified for your specific system.
What is the NSN for 104263?
104263 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-797-0803. 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