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PartsTable / COMPONENT / MILB933TYPEB
MILB933TYPEB ✓ 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 NUT,PLAIN,SQUARE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL, head_style: SQUARE, head_height: 0.452 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN, point_style: OVAL, thread_class: 3A A, thread_length: 2.000 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 5310-00-010-3101, 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
MILB933TYPEB
NSN: 5310-00-010-3101
FSC: 5310
CAGE: 81349 — MILITARY SPECIFICATIONS PROMULGATED BY MILITARY DEPARTMENTS/AGENCIES UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL COMP 4037 OR STEEL COMP 4137 OR STEEL COMP 4140 OR STEEL COMP 8630 OR STEEL COMP 8740 OVERALL
head_styleSQUARE
head_height0.452 INCHES MINIMUM AND 0.485 INCHES MAXIMUM IN
point_styleOVAL
thread_class3A A
thread_length2.000 INCHES MAXIMUM IN
fastener_length1.938 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
hardness_rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM OVERALL
thread_directionRIGHT-HAND
width_between_flats0.606 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
internal_drive_styleW/O INTERNAL DRIVE
nominal_thread_diameter0.625 INCHES IN
NSN5310-00-010-3101
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: MILB933TYPEB · 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
•
THREAD QUANTITY PER INCH: 32
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
BEARING SURFACE TYPE: FLAT
•
THREAD SERIES: UNF
•
THREAD CLASS: 2B
•
THREAD DIRECTION: RIGHT-HAND
•
MATERIAL: STEEL OVERALL
•
NUT HEIGHT: 0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH32
NOMINAL THREAD SIZE0.190 INCHES IN
BEARING SURFACE TYPEFLAT
THREAD SERIESUNF
THREAD CLASS2B
THREAD DIRECTIONRIGHT-HAND
MATERIALSTEEL OVERALL
NUT HEIGHT0.117 INCHES MINIMUM AND 0.130 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.362 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
NUT STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
103102Interchangeable
interchangeable cross-reference
interchangeable
MILB933TYPEBInterchangeable
interchangeable cross-reference
interchangeable
FF-N-836E TYPE 1 STYLE 3Interchangeable
interchangeable cross-reference
interchangeable
103104Interchangeable
interchangeable cross-reference
interchangeable
103105Interchangeable
interchangeable cross-reference
interchangeable
114380Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MILB933TYPEB?
MILB933TYPEB is a NUT,PLAIN,SQUARE.
What parts can replace MILB933TYPEB?
There are 20 known substitutes for MILB933TYPEB: 103102, MILB933TYPEB, FF-N-836E TYPE 1 STYLE 3 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MILB933TYPEB?
MILB933TYPEB is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-010-3101. 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