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90658-991 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

90658-991: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include nut_diameter: 80.00 MILLIMETERS MINIMUM MM, nut_thickness: 11.00 MILLIMETERS MINIMUM MM, thread_series: ISO M, thread_direction: RIGHT-HAND, drive_point_depth: 3.00 MILLIMETERS MINIMUM AND 3.20 MILLIMETERS MAXIMUM MM, drive_point_width: 7.00 MILLIMETERS MINIMUM AND 7.10 MILLIMETERS MAXIMUM MM. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-107-3581, 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
90658-991
NSN: 5310-01-107-3581
FSC: 5310 — Nuts and Washers
CAGE: 0BAT5 — U.S. DEFENSE SERVICES, INC. DBA USDS (USA)
SPECIFICATIONS
nut_diameter80.00 MILLIMETERS MINIMUM MM
nut_thickness11.00 MILLIMETERS MINIMUM MM
thread_seriesISO M
thread_directionRIGHT-HAND
drive_point_depth3.00 MILLIMETERS MINIMUM AND 3.20 MILLIMETERS MAXIMUM MM
drive_point_width7.00 MILLIMETERS MINIMUM AND 7.10 MILLIMETERS MAXIMUM MM
nominal_thread_size60.0 MILLIMETERS MM
drive_point_quantity4
thread_tolerance_class6H INTERNAL
thread_pitch_in_millimeters2.00
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
NSN5310-01-107-3581
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 90658-991 · 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: ISO M
•
THREAD PITCH IN MILLIMETERS: 2.00
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
•
DRIVE POINT WIDTH: 7.00 MILLIMETERS MINIMUM AND 7.10 MILLIMETERS MAXIMUM MM
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 60.0 MILLIMETERS MM
•
NUT DIAMETER: 80.00 MILLIMETERS MINIMUM MM
TECHNICAL CHARACTERISTICS
THREAD TOLERANCE CLASS6H INTERNAL
THREAD SERIESISO M
THREAD PITCH IN MILLIMETERS2.00
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
DRIVE POINT WIDTH7.00 MILLIMETERS MINIMUM AND 7.10 MILLIMETERS MAXIMUM MM
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE60.0 MILLIMETERS MM
NUT DIAMETER80.00 MILLIMETERS MINIMUM MM
DRIVE POINT DEPTH3.00 MILLIMETERS MINIMUM AND 3.20 MILLIMETERS MAXIMUM MM
NUT THICKNESS11.00 MILLIMETERS MINIMUM MM
SUBSTITUTES & CROSS-REFERENCES 5
HE011171Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
21262311-228Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
011171Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
KM-12Reference document
Same NSN cross-reference
Reference document — Secondary reference
2126 2311-228 TAKR 287Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90658-991?
90658-991 is a NUT,PLAIN,ROUND.
What parts can replace 90658-991?
There are 5 known substitutes for 90658-991: HE011171, 21262311-228, 011171 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90658-991?
90658-991 is cataloged in the U.S. Government catalog under NSN 5310-01-107-3581. This indicates validated use in U.S. government and defense supply chains.
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