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Technical Data Sheet
PartsTable / COMPONENT / 313-0033-000
313-0033-000 ✓ 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,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303 OVERALL, nut_style: HEXAGON, nut_height: 0.233 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-273-7760, 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
313-0033-000
NSN: 5310-00-273-7760
FSC: 5310
CAGE: 13499 — ROCKWELL COLLINS, INC. DBA COLLINS AEROSPACE GOVERNMENT SYSTEMS DIV COLLINS AEROSPACE - GOVERNMENT SYSTEMS (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OVERALL
nut_styleHEXAGON
nut_height0.233 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
width_across_flats0.5470 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
nominal_thread_size0.312 INCHES IN
bearing_surface_typeWASHER FACED
thread_quantity_per_inch18
specification/standard_data13499-313-0033-000 MANUFACTURERS SPECIFICATION CONTROL
NSN5310-00-273-7760
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 313-0033-000 · 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 SERIES: UNIFIED NATIONAL COARSE (UNC)
•
BEARING SURFACE TYPE: WASHER FACED
•
THREAD QUANTITY PER INCH: 18
•
NOMINAL THREAD SIZE: 0.312 INCHES IN
•
THREAD CLASS: 2B
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763,TYPE A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SPECIFICATION/STANDARD DATA: 13499-313-0033-000 MANUFACTURERS SPECIFICATION CONTROL
•
MATERIAL: STEEL COMP 303 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
BEARING SURFACE TYPEWASHER FACED
THREAD QUANTITY PER INCH18
NOMINAL THREAD SIZE0.312 INCHES IN
THREAD CLASS2B
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763,TYPE A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SPECIFICATION/STANDARD DATA13499-313-0033-000 MANUFACTURERS SPECIFICATION CONTROL
MATERIALSTEEL COMP 303 OVERALL
NUT HEIGHT0.233 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
WIDTH ACROSS FLATS0.5470 INCHES MINIMUM AND 0.5625 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
13218E0320Interchangeable
interchangeable cross-reference
interchangeable
13474Interchangeable
interchangeable cross-reference
interchangeable
2100-0221-001Interchangeable
interchangeable cross-reference
interchangeable
P313-0033-000Interchangeable
Same NIIN cross-reference
interchangeable
12Z2010-57Interchangeable
Same NIIN cross-reference
interchangeable
313-0033-00Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 313-0033-000?
313-0033-000 is a NUT,PLAIN,HEXAGON.
What parts can replace 313-0033-000?
There are 6 known substitutes for 313-0033-000: 13218E0320, 13474, 2100-0221-001 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 313-0033-000?
313-0033-000 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-273-7760. 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