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PartsTable / COMPONENT / 513269
513269 ✓ 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: IRON ALLOY 660 OVERALL, nut_style: HEXAGON, nut_height: 0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN, thread_class: 3B, thread_series: UNF, special_features: 0.130IN. BY 0.024IN.

DEEP SLOT LOCATED ON EACH WRENCHING FLAT SURFACE IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-935-3532, 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
513269
NSN: 5310-00-935-3532
FSC: 5310
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_styleHEXAGON
nut_height0.180 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNF
special_features0.130IN. BY 0.024IN. DEEP SLOT LOCATED ON EACH WRENCHING FLAT SURFACE IN
thread_directionRIGHT-HAND
width_across_flats0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeCHAMFERED
thread_quantity_per_inch24
material_document_and_classificationAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-935-3532
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 513269 · 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: UNF
•
BEARING SURFACE TYPE: CHAMFERED
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
THREAD QUANTITY PER INCH: 24
•
THREAD CLASS: 3B
•
NUT STYLE: HEXAGON
•
MATERIAL: IRON ALLOY 660 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNF
BEARING SURFACE TYPECHAMFERED
NOMINAL THREAD SIZE0.375 INCHES IN
SPECIAL FEATURES0.130IN. BY 0.024IN. DEEP SLOT LOCATED ON EACH WRENCHING FLAT SURFACE IN
THREAD QUANTITY PER INCH24
THREAD CLASS3B
NUT STYLEHEXAGON
MATERIALIRON ALLOY 660 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
WIDTH ACROSS FLATS0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
668275Interchangeable
interchangeable cross-reference
interchangeable
57710-4Interchangeable
interchangeable cross-reference
interchangeable
68-13AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 513269?
513269 is a NUT,PLAIN,HEXAGON.
What parts can replace 513269?
There are 3 known substitutes for 513269: 668275, 57710-4, 68-13A. Substitute compatibility should be verified for your specific system.
Is 513269 still available?
513269 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026