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801-6640828PC133 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

801-6640828PC133: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 958 OVERALL, nut_style: ROUND, nut_diameter: 4.380 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 1.500 INCHES NOMINAL IN, thread_series: UN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-477-7554, 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
801-6640828PC133
NSN: 5310-01-477-7554
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY 958 OVERALL
nut_styleROUND
nut_diameter4.380 INCHES NOMINAL IN
thread_class2B
nut_thickness1.500 INCHES NOMINAL IN
thread_seriesUN
special_featuresBORE ON FIRST END 3.210 IN MIN. TO 3.220 IN. MAX. DIA AND 0.391 IN. DEEP IN
thread_directionRIGHT-HAND
drive_point_depth0.130 INCHES NOMINAL IN
drive_point_width0.380 INCHES NOMINAL IN
nominal_thread_size3.750 INCHES IN
drive_point_quantity6
NSN5310-01-477-7554
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 801-6640828PC133 · 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: UN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-B-24480,ALLOY UNS NO.C958000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
DRIVE POINT WIDTH: 0.380 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 3.750 INCHES IN
•
NUT DIAMETER: 4.380 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.130 INCHES NOMINAL IN
•
NUT THICKNESS: 1.500 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-B-24480,ALLOY UNS NO.C958000 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
DRIVE POINT WIDTH0.380 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE3.750 INCHES IN
NUT DIAMETER4.380 INCHES NOMINAL IN
DRIVE POINT DEPTH0.130 INCHES NOMINAL IN
NUT THICKNESS1.500 INCHES NOMINAL IN
SPECIAL FEATURESBORE ON FIRST END 3.210 IN MIN. TO 3.220 IN. MAX. DIA AND 0.391 IN. DEEP IN
DRIVE POINT QUANTITY6
SUBSTITUTES & CROSS-REFERENCES 1
801-6640828Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 801-6640828PC133?
801-6640828PC133 is a NUT,PLAIN,ROUND.
What parts can replace 801-6640828PC133?
There is 1 known substitute for 801-6640828PC133: 801-6640828. Substitute compatibility should be verified for your specific system.
What is the NSN for 801-6640828PC133?
801-6640828PC133 is cataloged in the U.S. Government catalog under NSN 5310-01-477-7554. 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.