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517747 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

517747: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 347 OVERALL, nut_style: ROUND, nut_diameter: 0.780 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN, thread_class: 3B, nut_thickness: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-868-1779, 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
517747
NSN: 5310-00-868-1779
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialSTEEL COMP 347 OVERALL
nut_styleROUND
nut_diameter0.780 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
thread_class3B
nut_thickness0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
thread_seriesUNF
thread_directionLEFT-HAND
nominal_thread_size0.562 INCHES IN
thread_quantity_per_inch18
material_document_and_classificationAMS 5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-868-1779
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 517747 · 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 SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: LEFT-HAND
•
NOMINAL THREAD SIZE: 0.562 INCHES IN
•
NUT DIAMETER: 0.780 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
•
NUT THICKNESS: 0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
•
NUT STYLE: ROUND
•
THREAD CLASS: 3B
TECHNICAL CHARACTERISTICS
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5646 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONLEFT-HAND
NOMINAL THREAD SIZE0.562 INCHES IN
NUT DIAMETER0.780 INCHES MINIMUM AND 0.800 INCHES MAXIMUM IN
NUT THICKNESS0.370 INCHES MINIMUM AND 0.380 INCHES MAXIMUM IN
NUT STYLEROUND
THREAD CLASS3B
THREAD QUANTITY PER INCH18
MATERIALSTEEL COMP 347 OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
518847Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 517747?
517747 is a NUT,PLAIN,ROUND.
What parts can replace 517747?
There is 1 known substitute for 517747: 518847. Substitute compatibility should be verified for your specific system.
What is the NSN for 517747?
517747 is cataloged in the U.S. Government catalog under NSN 5310-00-868-1779. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.