PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 508-00240
508-00240 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SCREW,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 410 PRIMARY WASHER, head_style: BINDING, head_height: 0.092 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.335 INCHES NOMINAL IN, thread_length: 0.333 INCHES MINIMUM 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 5305-00-685-7660, 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
508-00240
NSN: 5305-00-685-7660
FSC: 5305
CAGE: 00781 — CESSNA AIRCRAFT CO ARC AVIONICS DIV (USA)
SPECIFICATIONS
materialSTEEL COMP 410 PRIMARY WASHER
head_styleBINDING
head_height0.092 INCHES NOMINAL IN
thread_class2A A
head_diameter0.335 INCHES NOMINAL IN
thread_length0.333 INCHES MINIMUM IN
fastener_length0.375 INCHES NOMINAL IN
washer_quantity1
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE PRIMARY WASHER
internal_drive_styleSLOT
primary_washer_styleFLAT INTERNAL TEETH
NSN5305-00-685-7660
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 508-00240 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
INTERNAL DRIVE STYLE: SLOT
•
PRIMARY WASHER STYLE: FLAT INTERNAL TEETH
•
HEAD DIAMETER: 0.335 INCHES NOMINAL IN
•
THREAD SERIES DESIGNATOR: UNIFIED NATIONAL COARSE (UNC)
•
SURFACE TREATMENT: PASSIVATE PRIMARY WASHER
•
NOMINAL THREAD DIAMETER: 0.164 INCHES IN
•
HEAD HEIGHT: 0.092 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
INTERNAL DRIVE STYLESLOT
PRIMARY WASHER STYLEFLAT INTERNAL TEETH
HEAD DIAMETER0.335 INCHES NOMINAL IN
THREAD SERIES DESIGNATORUNIFIED NATIONAL COARSE (UNC)
SURFACE TREATMENTPASSIVATE PRIMARY WASHER
NOMINAL THREAD DIAMETER0.164 INCHES IN
HEAD HEIGHT0.092 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL COMP 410 PRIMARY WASHER
PRIMARY WASHER MATERIAL THICKNESS0.042 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
50838Interchangeable
interchangeable cross-reference
interchangeable
JSFQ05Interchangeable
interchangeable cross-reference
interchangeable
JSFQ05-12Interchangeable
interchangeable cross-reference
interchangeable
1690710Interchangeable
interchangeable cross-reference
interchangeable
508 3/8Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy 508-00240?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 508-00240?
508-00240 is a SCREW,ASSEMBLED WASHER.
What parts can replace 508-00240?
There are 5 known substitutes for 508-00240: 50838, JSFQ05, JSFQ05-12 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 508-00240?
508-00240 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5305-00-685-7660. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 508-00240

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026