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Technical Data Sheet
PartsTable / COMPONENT / 8573A
8573A ✓ 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 material: STEEL OVERALL, nut_style: HEXAGON, tube_type: CAMERA, nut_height: 0.188 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-268-7274, 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
8573A
NSN: 5310-00-268-7274
FSC: 5310
CAGE: 16460 — MARINE ENGINE SPECIALTIES DIV OF MESCO TECTONICS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
tube_typeCAMERA
nut_height0.188 INCHES NOMINAL IN
thread_class2B
thread_seriesUNF
thread_directionRIGHT-HAND
width_across_flats1.062 INCHES NOMINAL IN
nominal_thread_size0.750 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch16
specification/standard_data80131-RELEASE 5873 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
NSN5310-00-268-7274
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8573A · 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
KEY FEATURES
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD SERIES: UNF
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED
•
THREAD QUANTITY PER INCH: 16
•
THREAD CLASS: 2B
•
WIDTH ACROSS FLATS: 1.062 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
THREAD SERIESUNF
NOMINAL THREAD SIZE0.750 INCHES IN
BEARING SURFACE TYPECHAMFERED
THREAD QUANTITY PER INCH16
THREAD CLASS2B
WIDTH ACROSS FLATS1.062 INCHES NOMINAL IN
NUT STYLEHEXAGON
MATERIALSTEEL OVERALL
NUT HEIGHT0.188 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
911-028-0029Interchangeable
interchangeable cross-reference
interchangeable
JJ5145Interchangeable
interchangeable cross-reference
interchangeable
DUR50Interchangeable
interchangeable cross-reference
interchangeable
123877Interchangeable
interchangeable cross-reference
interchangeable
RELEASE5873Interchangeable
interchangeable cross-reference
interchangeable
8573AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8573A?
8573A is a ELECTRON TUBE.
What parts can replace 8573A?
There are 18 known substitutes for 8573A: 911-028-0029, JJ5145, DUR50 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8573A?
8573A is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-268-7274. 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