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Technical Data Sheet
PartsTable / COMPONENT / MS35333-13
MS35333-13 ✓ 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 hole_diameter: 0.769 INCHES MINIMUM AND 0.795 INCHES MAXIMUM IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM, outside_diameter: 1.220 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN, style_designator: FLAT INTERNAL TEETH, material_thickness: 0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN, nondefinitive_spec/std_data: 1 TYPE AND A GRADE AND 1 STYLE AND 1 COMPOSITION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-8680, 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
MS35333-13
NSN: 5310-00-274-8680
FSC: 5310
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
hole_diameter0.769 INCHES MINIMUM AND 0.795 INCHES MAXIMUM IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
outside_diameter1.220 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN
style_designatorFLAT INTERNAL TEETH
material_thickness0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
nondefinitive_spec/std_data1 TYPE AND A GRADE AND 1 STYLE AND 1 COMPOSITION
NSN5310-00-274-8680
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MS35333-13 · 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
•
TEST DATA DOCUMENT: 81348-FFW100 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND A GRADE AND 1 STYLE AND 1 COMPOSITION
•
STYLE DESIGNATOR: FLAT INTERNAL TEETH
•
MATERIAL: STEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1552 OR STEEL COMP 1053 OR STEEL COMP 1054 OR STEEL COMP 1055 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OVERALL
•
HOLE DIAMETER: 0.769 INCHES MINIMUM AND 0.795 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
•
OUTSIDE DIAMETER: 1.220 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
TEST DATA DOCUMENT81348-FFW100 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
NONDEFINITIVE SPEC/STD DATA1 TYPE AND A GRADE AND 1 STYLE AND 1 COMPOSITION
STYLE DESIGNATORFLAT INTERNAL TEETH
MATERIALSTEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1552 OR STEEL COMP 1053 OR STEEL COMP 1054 OR STEEL COMP 1055 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OVERALL
HOLE DIAMETER0.769 INCHES MINIMUM AND 0.795 INCHES MAXIMUM IN
MATERIAL THICKNESS0.047 INCHES MINIMUM AND 0.055 INCHES MAXIMUM IN
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
OUTSIDE DIAMETER1.220 INCHES MINIMUM AND 1.245 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
MS35333-13Interchangeable
interchangeable cross-reference
interchangeable
MS35333-47Interchangeable
interchangeable cross-reference
interchangeable
2152HXInterchangeable
interchangeable cross-reference
interchangeable
FFW100Interchangeable
Same NIIN cross-reference
interchangeable
12Z22PC163Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS35333-13?
MS35333-13 is a WASHER,LOCK.
What parts can replace MS35333-13?
There are 5 known substitutes for MS35333-13: MS35333-13, MS35333-47, 2152HX and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS35333-13?
MS35333-13 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-274-8680. 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