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PartsTable / COMPONENT / MS45904-88
MS45904-88 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1050 OR STEEL COMP 1566 OVERALL, hole_diameter: 0.576 INCHES MINIMUM AND 0.596 INCHES MAXIMUM IN, outside_diameter: 1.290 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN, style_designator: FLAT EXTERNAL AND INTERNAL TEETH, surface_treatment: CADMIUM OR ZINC OVERALL, material_thickness: 0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-017-8607, 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
MS45904-88
NSN: 5310-00-017-8607
FSC: 5310
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 1050 OR STEEL COMP 1566 OVERALL
hole_diameter0.576 INCHES MINIMUM AND 0.596 INCHES MAXIMUM IN
outside_diameter1.290 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN
style_designatorFLAT EXTERNAL AND INTERNAL TEETH
surface_treatmentCADMIUM OR ZINC OVERALL
material_thickness0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
material_document_and_classificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-017-8607
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS45904-88 · 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
•
STYLE DESIGNATOR: FLAT EXTERNAL AND INTERNAL TEETH
•
HOLE DIAMETER: 0.576 INCHES MINIMUM AND 0.596 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OR ZINC OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: STEEL COMP 1050 OR STEEL COMP 1566 OVERALL
•
MATERIAL THICKNESS: 0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 1.290 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORFLAT EXTERNAL AND INTERNAL TEETH
HOLE DIAMETER0.576 INCHES MINIMUM AND 0.596 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIALSTEEL COMP 1050 OR STEEL COMP 1566 OVERALL
MATERIAL THICKNESS0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
OUTSIDE DIAMETER1.290 INCHES MINIMUM AND 1.315 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
8300XS3Interchangeable
interchangeable cross-reference
interchangeable
9L1125Interchangeable
interchangeable cross-reference
interchangeable
17405-3Interchangeable
interchangeable cross-reference
interchangeable
17860-7Interchangeable
interchangeable cross-reference
interchangeable
644844-7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS45904-88?
MS45904-88 is a WASHER,LOCK.
What parts can replace MS45904-88?
There are 5 known substitutes for MS45904-88: 8300XS3, 9L1125, 17405-3 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS45904-88?
MS45904-88 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-017-8607. 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