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PartsTable / COMPONENT / 335A0591
335A0591 ✓ 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,HEADED is a the manufacturer industrial component. Key specifications include height: 0.156 INCHES NOMINAL IN, diameter: 0.491 INCHES MINIMUM AND 0.496 INCHES MAXIMUM IN, material: STEEL COMP 1115 OVERALL, head_style: FLAT, chamfer_length: 0.067 INCHES NOMINAL IN, hardness_rating: 52.1 ROCKWELL C NOMINAL OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-272-6804, 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
335A0591
NSN: 5315-00-272-6804
FSC: 5315
CAGE: 8E499 — KOEHRING CRANES AND EXCAVATORS INC SUB OF NORTHWEST ENGINEERING CO (USA)
SPECIFICATIONS
height0.156 INCHES NOMINAL IN
diameter0.491 INCHES MINIMUM AND 0.496 INCHES MAXIMUM IN
materialSTEEL COMP 1115 OVERALL
head_styleFLAT
chamfer_length0.067 INCHES NOMINAL IN
hardness_rating52.1 ROCKWELL C NOMINAL OVERALL
style_designatorSTRAIGHT
pin_chamfer_angle25.0 DEGREES NOMINAL
pin_head_diameter0.625 INCHES NOMINAL IN
under_head_length1.422 INCHES NOMINAL IN
first_hole_diameter0.141 INCHES NOMINAL IN
hole_arrangement_styleONE END DRILLED
NSN5315-00-272-6804
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 335A0591 · 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
•
FIRST HOLE DIAMETER: 0.140 INCHES NOMINAL IN
•
HEAD STYLE: FLAT
•
CHAMFER LENGTH: 0.109 INCHES NOMINAL IN
•
HOLE ARRANGEMENT STYLE: ONE END DRILLED
•
HEIGHT: 0.156 INCHES NOMINAL IN
•
PIN CHAMFER ANGLE: 15.0 DEGREES NOMINAL
•
PIN HEAD DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST HOLE DIAMETER0.140 INCHES NOMINAL IN
HEAD STYLEFLAT
CHAMFER LENGTH0.109 INCHES NOMINAL IN
HOLE ARRANGEMENT STYLEONE END DRILLED
HEIGHT0.156 INCHES NOMINAL IN
SPECIAL FEATURESFURNISHED WITH 1 COTTER PIN
PIN CHAMFER ANGLE15.0 DEGREES NOMINAL
PIN HEAD DIAMETER0.625 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
MATERIALSTEEL COMP 1025 OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
810728Interchangeable
interchangeable cross-reference
interchangeable
D385Interchangeable
interchangeable cross-reference
interchangeable
512228-20Interchangeable
interchangeable cross-reference
interchangeable
SH270Interchangeable
interchangeable cross-reference
interchangeable
H601Interchangeable
interchangeable cross-reference
interchangeable
4722-3-4C2-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 335A0591?
335A0591 is a PIN,STRAIGHT,HEADED.
What parts can replace 335A0591?
There are 13 known substitutes for 335A0591: 810728, D385, 512228-20 and 10 more. Substitute compatibility should be verified for your specific system.
Is 335A0591 still available?
335A0591 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