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7688790 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

7688790: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2011 OVERALL, nut_style: ROUND, nut_diameter: 2.355 INCHES MINIMUM AND 2.361 INCHES MAXIMUM IN, nut_thickness: 0.412 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN, thread_series: UNS, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-768-8790, 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
7688790
NSN: 5310-00-768-8790
FSC: 5310 — Nuts and Washers
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2011 OVERALL
nut_styleROUND
nut_diameter2.355 INCHES MINIMUM AND 2.361 INCHES MAXIMUM IN
nut_thickness0.412 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN
thread_seriesUNS
thread_directionRIGHT-HAND
drive_point_depth0.110 INCHES NOMINAL IN
surface_treatmentANODIZE OVERALL
nominal_thread_size1.572 INCHES IN
drive_point_diameter0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
drive_point_quantity4
thread_pitch_diameters+1.5585 TO 1.5629 INCHES IN
NSN5310-00-768-8790
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 7688790 · 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
•
THREAD PITCH DIAMETERS: +1.5585 TO 1.5629 INCHES IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.572 INCHES IN
•
NUT DIAMETER: 2.355 INCHES MINIMUM AND 2.361 INCHES MAXIMUM IN
•
DRIVE POINT DEPTH: 0.110 INCHES NOMINAL IN
•
NUT THICKNESS: 0.412 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNS
THREAD PITCH DIAMETERS+1.5585 TO 1.5629 INCHES IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/3 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.572 INCHES IN
NUT DIAMETER2.355 INCHES MINIMUM AND 2.361 INCHES MAXIMUM IN
DRIVE POINT DEPTH0.110 INCHES NOMINAL IN
NUT THICKNESS0.412 INCHES MINIMUM AND 0.432 INCHES MAXIMUM IN
DRIVE POINT DIAMETER0.122 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN
SURFACE TREATMENTANODIZE OVERALL
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 1
5310007688790Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 7688790?
7688790 is a NUT,PLAIN,ROUND.
What parts can replace 7688790?
There is 1 known substitute for 7688790: 5310007688790. Substitute compatibility should be verified for your specific system.
What is the NSN for 7688790?
7688790 is cataloged in the U.S. Government catalog under NSN 5310-00-768-8790. 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.