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PartsTable / COMPONENT / 581066-1
581066-1 ✓ Verified by PartsTable
— · 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 WASHER ASSORTMENT is a the manufacturer industrial component. Key specifications include document_type: SERVICE BULLETIN, document_source: 96027, document_identification: NORTHWESTERN NO. 35, component_document_origin: INDUSTRIAL, component_document_page_number: 14.

This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-545-6888, 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
581066-1
NSN: 5310-00-545-6888
FSC: 5310
CAGE: 3B150 — RAYTHEON COMPANY DBA RAYTHEON CO (USA)
SPECIFICATIONS
document_typeSERVICE BULLETIN
document_source96027
component_quantity2
document_identificationNORTHWESTERN NO. 35
component_document_originINDUSTRIAL
component_document_page_number14
NSN5310-00-545-6888
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 581066-1 · 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
•
DOCUMENT TYPE: SERVICE BULLETIN
•
COMPONENT DOCUMENT ORIGIN: INDUSTRIAL
•
DOCUMENT IDENTIFICATION: NORTHWESTERN NO. 35
•
COMPONENT QUANTITY: 2
•
COMPONENT DOCUMENT PAGE NUMBER: 14
•
DOCUMENT SOURCE: 96027
TECHNICAL CHARACTERISTICS (FLIS)
DOCUMENT TYPESERVICE BULLETIN
COMPONENT DOCUMENT ORIGININDUSTRIAL
DOCUMENT IDENTIFICATIONNORTHWESTERN NO. 35
COMPONENT QUANTITY2
COMPONENT DOCUMENT PAGE NUMBER14
DOCUMENT SOURCE96027
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
581066Interchangeable
interchangeable cross-reference
interchangeable
3200-6Interchangeable
interchangeable cross-reference
interchangeable
3200Interchangeable
interchangeable cross-reference
interchangeable
32006IInterchangeable
interchangeable cross-reference
interchangeable
320061Interchangeable
interchangeable cross-reference
interchangeable
AS25427Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 581066-1?
581066-1 is a WASHER ASSORTMENT.
What parts can replace 581066-1?
There are 17 known substitutes for 581066-1: 581066, 3200-6, 3200 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 581066-1?
581066-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-545-6888. 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: July 2026