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PartsTable / COMPONENT / 730-4405-12
730-4405-12 ✓ 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 PIN,STRAIGHT,HEADLESS is a the manufacturer industrial component. Key specifications include material: STEEL COMP 403 OVERALL, first_end_style: SQUARE, surface_treatment: PASSIVATE OVERALL, pin_overall_length: 3.750 INCHES NOMINAL IN, pin_overall_diameter: 0.1245 INCHES MINIMUM AND 0.1247 INCHES MAXIMUM IN, material_document_and_classification: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-304-0880, 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
730-4405-12
NSN: 5315-01-304-0880
FSC: 5315
CAGE: 81579 — MASON ELECTRIC CO. DBA MASON CONTROLS (USA)
SPECIFICATIONS
materialSTEEL COMP 403 OVERALL
first_end_styleSQUARE
surface_treatmentPASSIVATE OVERALL
pin_overall_length3.750 INCHES NOMINAL IN
pin_overall_diameter0.1245 INCHES MINIMUM AND 0.1247 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
second_end_relationship_with_first_endIDENTICAL
surface_treatment_document_and_classificationQQ-P-35,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5315-01-304-0880
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 730-4405-12 · 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
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-35,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
MATERIAL: STEEL COMP 403 OVERALL
•
FIRST END STYLE: SQUARE
•
PIN OVERALL DIAMETER: 0.1245 INCHES MINIMUM AND 0.1247 INCHES MAXIMUM IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
PIN OVERALL LENGTH: 3.750 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE TREATMENTPASSIVATE OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-764 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35,TYPE II FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIALSTEEL COMP 403 OVERALL
FIRST END STYLESQUARE
PIN OVERALL DIAMETER0.1245 INCHES MINIMUM AND 0.1247 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
PIN OVERALL LENGTH3.750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
A137Interchangeable
interchangeable cross-reference
interchangeable
BP3433Interchangeable
interchangeable cross-reference
interchangeable
44938Interchangeable
interchangeable cross-reference
interchangeable
VI429Interchangeable
interchangeable cross-reference
interchangeable
H27140AInterchangeable
interchangeable cross-reference
interchangeable
27140Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 730-4405-12?
730-4405-12 is a PIN,STRAIGHT,HEADLESS.
What parts can replace 730-4405-12?
There are 11 known substitutes for 730-4405-12: A137, BP3433, 44938 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 730-4405-12?
730-4405-12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-01-304-0880. This indicates validated use in U.S. government and defense supply chains.
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Last verified: July 2026