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32-411764-3 — NUT,PLAIN,EXTENDED WASHER,HEXAGO

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

32-411764-3: NUT,PLAIN,EXTENDED WASHER,HEXAGO.

NUT,PLAIN,EXTENDED WASHER,HEXAGO. Key specifications include thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT (UNJ), overall_height: 1.320 INCHES NOMINAL IN, thread_direction: RIGHT-HAND, washer_thickness: 0.500 INCHES NOMINAL IN, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-997-8972, 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
32-411764-3
NSN: 5310-00-997-8972
FSC: 5310 — Nuts and Washers
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)
SPECIFICATIONS
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT (UNJ)
overall_height1.320 INCHES NOMINAL IN
thread_directionRIGHT-HAND
washer_thickness0.500 INCHES NOMINAL IN
surface_treatmentCADMIUM OVERALL
width_across_flats3.750 INCHES NOMINAL IN
nominal_thread_size3.125 INCHES IN
washer_outside_diameter3.995 INCHES MINIMUM AND 4.005 INCHES MAXIMUM IN
thread_quantity_per_inch8
material_document_and_classificationAMS6427 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-00-997-8972
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 32-411764-3 · 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
•
WASHER OUTSIDE DIAMETER: 3.995 INCHES MINIMUM AND 4.005 INCHES MAXIMUM IN
•
WIDTH ACROSS FLATS: 3.750 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL JOINT (UNJ)
•
WASHER THICKNESS: 0.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS6427 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 3.125 INCHES IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.320 INCHES NOMINAL IN
WASHER OUTSIDE DIAMETER3.995 INCHES MINIMUM AND 4.005 INCHES MAXIMUM IN
WIDTH ACROSS FLATS3.750 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL JOINT (UNJ)
WASHER THICKNESS0.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS6427 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE3.125 INCHES IN
SURFACE TREATMENTCADMIUM OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
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 32-411764-3?
32-411764-3 is a NUT,PLAIN,EXTENDED WASHER,HEXAGO.
What is the NSN for 32-411764-3?
32-411764-3 is cataloged in the U.S. Government catalog under NSN 5310-00-997-8972. 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.