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6783706 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

6783706: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 8735 OR STEEL COMP 8740 OVERALL, nut_style: ROUND, nut_diameter: 2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM IN, thread_class: 3B, nut_thickness: 0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN, thread_series: UNS. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-616-6404, 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
6783706
NSN: 5310-00-616-6404
FSC: 5310 — Nuts and Washers
CAGE: 63005 — ROLLS-ROYCE CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 8735 OR STEEL COMP 8740 OVERALL
nut_styleROUND
nut_diameter2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM IN
thread_class3B
nut_thickness0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
thread_seriesUNS
hardness_rating32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
thread_directionRIGHT-HAND
countersink_angle89.0 DEGREES MINIMUM AND 91.0 DEGREES MAXIMUM NUT
drive_point_depth0.092 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
drive_point_width0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
nominal_thread_size2.062 INCHES IN
NSN5310-00-616-6404
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 6783706 · 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: UNS
•
HARDNESS RATING: 32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
•
HOLE CONFIGURATION STYLE: CONFIGURATION F
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6282 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6323 ASSN STD 2ND MATERIAL RESPONSE OR 6324 ASSN STD 2ND MATERIAL RESPONSE OVERALL
•
DRIVE POINT WIDTH: 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 2.062 INCHES IN
•
NUT DIAMETER: 2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNS
HARDNESS RATING32.0 ROCKWELL C MINIMUM AND 36.0 ROCKWELL C MAXIMUM
HOLE CONFIGURATION STYLECONFIGURATION F
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 6320 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6282 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6322 ASSN STD 2ND MATERIAL RESPONSE OR AMS 6323 ASSN STD 2ND MATERIAL RESPONSE OR 6324 ASSN STD 2ND MATERIAL RESPONSE OVERALL
DRIVE POINT WIDTH0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE2.062 INCHES IN
NUT DIAMETER2.615 INCHES MINIMUM AND 2.635 INCHES MAXIMUM IN
DRIVE POINT DEPTH0.092 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN
NUT THICKNESS0.552 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 6783706?
6783706 is a NUT,PLAIN,ROUND.
What is the NSN for 6783706?
6783706 is cataloged in the U.S. Government catalog under NSN 5310-00-616-6404. 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.