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321772 — Technical Data Sheet

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— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5315-00-363-6432, 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
321772
NSN: 5315-00-363-6432
FSC: 5315
CAGE: 1ML14 — BRINKLEY TECHNOLOGY GROUP LLC DBA HERCULES MANUFACTURING (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
NSN5315-00-363-6432
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 321772 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL AISI 1117,1.620 IN. O/A LG IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL AISI 1117,1.620 IN. O/A LG IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
WE-2055-2InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
11181InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
NPH-28-25InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
B0400InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
0180-0268InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
700877 PIECE 68InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 321772?
321772 is a GASKET.
What parts can replace 321772?
There are 17 known substitutes for 321772: WE-2055-2, 11181, NPH-28-25 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 321772?
321772 is cataloged in the Federal Logistics Information System under NSN 5315-00-363-6432. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026