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PartsTable / COMPONENT / 74158H
74158H ✓ 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: 0.125 INCHES NOMINAL IN, diameter: 0.368 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN, material: STEEL OVERALL, head_style: FLAT CHAMFER, chamfer_length: 0.078 INCHES NOMINAL IN, style_designator: STRAIGHT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-383-9916, 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
74158H
NSN: 5315-00-383-9916
FSC: 5315
CAGE: 29930 — INTERNATIONAL HARVESTER CO AGRICULTURAL EQUIPMENT DIV (USA)
SPECIFICATIONS
height0.125 INCHES NOMINAL IN
diameter0.368 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
materialSTEEL OVERALL
head_styleFLAT CHAMFER
chamfer_length0.078 INCHES NOMINAL IN
style_designatorSTRAIGHT
pin_chamfer_angle15.0 DEGREES NOMINAL
pin_head_diameter0.500 INCHES NOMINAL IN
under_head_length1.344 INCHES NOMINAL IN
first_hole_diameter0.101 INCHES NOMINAL IN
hole_arrangement_styleONE END DRILLED
distance_from_centerline_of_hole_to_end_of_pin0.156 INCHES NOMINAL IN
NSN5315-00-383-9916
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 74158H · 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
•
CHAMFER LENGTH: 0.078 INCHES NOMINAL IN
•
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN: 0.156 INCHES NOMINAL IN
•
PIN HEAD DIAMETER: 0.500 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
DIAMETER: 0.368 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
•
UNDER HEAD LENGTH: 1.344 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT
•
HEAD STYLE: FLAT CHAMFER
TECHNICAL CHARACTERISTICS (FLIS)
CHAMFER LENGTH0.078 INCHES NOMINAL IN
DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN0.156 INCHES NOMINAL IN
PIN HEAD DIAMETER0.500 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
DIAMETER0.368 INCHES MINIMUM AND 0.373 INCHES MAXIMUM IN
UNDER HEAD LENGTH1.344 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT
HEAD STYLEFLAT CHAMFER
PIN CHAMFER ANGLE15.0 DEGREES NOMINAL
HOLE ARRANGEMENT STYLEONE END DRILLED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
P147Interchangeable
interchangeable cross-reference
interchangeable
AR50041Interchangeable
interchangeable cross-reference
interchangeable
74036432Interchangeable
interchangeable cross-reference
interchangeable
2-2-177Interchangeable
interchangeable cross-reference
interchangeable
TVCM25Interchangeable
interchangeable cross-reference
interchangeable
ECG810AInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 74158H?
74158H is a PIN,STRAIGHT,HEADED.
What parts can replace 74158H?
There are 8 known substitutes for 74158H: P147, AR50041, 74036432 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 74158H?
74158H is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-383-9916. 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