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331-102-020 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

331-102-020: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON OVERALL, nut_style: ROUND, nut_diameter: 9.3 MILLIMETERS MINIMUM AND 9.5 MILLIMETERS MAXIMUM MM, nut_thickness: 3.5 MILLIMETERS NOMINAL MM, thread_direction: RIGHT-HAND, drive_point_depth: 1.0 MILLIMETERS NOMINAL MM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-331-7221, 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
331-102-020
NSN: 5310-01-331-7221
FSC: 5310 — Nuts and Washers
CAGE: 47432 — INTERSPIRO INC (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON OVERALL
nut_styleROUND
nut_diameter9.3 MILLIMETERS MINIMUM AND 9.5 MILLIMETERS MAXIMUM MM
nut_thickness3.5 MILLIMETERS NOMINAL MM
thread_seriesM
thread_directionRIGHT-HAND
drive_point_depth1.0 MILLIMETERS NOMINAL MM
drive_point_width2.0 MILLIMETERS NOMINAL MM
small_end_diameter7.9 MILLIMETERS NOMINAL MM
undercut_thickness1.0 MILLIMETERS NOMINAL MM
nominal_thread_size7.50 MILLIMETERS MM
drive_point_quantity12
NSN5310-01-331-7221
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 331-102-020 · 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 TOLERANCE CLASS: 6H INTERNAL
•
THREAD SERIES: M
•
THREAD PITCH IN MILLIMETERS: 0.50
•
DRIVE POINT WIDTH: 2.0 MILLIMETERS NOMINAL MM
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 7.50 MILLIMETERS MM
•
NUT DIAMETER: 9.3 MILLIMETERS MINIMUM AND 9.5 MILLIMETERS MAXIMUM MM
•
DRIVE POINT DEPTH: 1.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
THREAD TOLERANCE CLASS6H INTERNAL
THREAD SERIESM
THREAD PITCH IN MILLIMETERS0.50
DRIVE POINT WIDTH2.0 MILLIMETERS NOMINAL MM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE7.50 MILLIMETERS MM
NUT DIAMETER9.3 MILLIMETERS MINIMUM AND 9.5 MILLIMETERS MAXIMUM MM
DRIVE POINT DEPTH1.0 MILLIMETERS NOMINAL MM
UNDERCUT THICKNESS1.0 MILLIMETERS NOMINAL MM
NUT THICKNESS3.5 MILLIMETERS NOMINAL MM
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
6318049Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 331-102-020?
331-102-020 is a NUT,PLAIN,ROUND.
What parts can replace 331-102-020?
There is 1 known substitute for 331-102-020: 6318049. Substitute compatibility should be verified for your specific system.
What is the NSN for 331-102-020?
331-102-020 is cataloged in the U.S. Government catalog under NSN 5310-01-331-7221. This indicates validated use in U.S. government and defense supply chains.
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