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3H237 ✓ 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 WASHER,SHOULDERED AND RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, recess_angle: 45.0 DEGREES NOMINAL, hole_diameter: 0.487 INCHES NOMINAL IN, shoulder_height: 0.201 INCHES NOMINAL IN, outside_diameter: 1.320 INCHES NOMINAL IN, style_designator: SHOULDERED AND RECESSED. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-374-6103, 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
3H237
NSN: 5310-00-374-6103
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
recess_angle45.0 DEGREES NOMINAL
hole_diameter0.487 INCHES NOMINAL IN
shoulder_height0.201 INCHES NOMINAL IN
outside_diameter1.320 INCHES NOMINAL IN
style_designatorSHOULDERED AND RECESSED
shoulder_diameter1.175 INCHES NOMINAL IN
material_thickness0.049 INCHES NOMINAL IN
NSN5310-00-374-6103
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 3H237 · 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
•
STYLE DESIGNATOR: SHOULDERED AND RECESSED
•
MATERIAL THICKNESS: 0.049 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.487 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
SHOULDER HEIGHT: 0.201 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.320 INCHES NOMINAL IN
•
SHOULDER DIAMETER: 1.175 INCHES NOMINAL IN
•
RECESS ANGLE: 45.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORSHOULDERED AND RECESSED
MATERIAL THICKNESS0.049 INCHES NOMINAL IN
HOLE DIAMETER0.487 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SHOULDER HEIGHT0.201 INCHES NOMINAL IN
OUTSIDE DIAMETER1.320 INCHES NOMINAL IN
SHOULDER DIAMETER1.175 INCHES NOMINAL IN
RECESS ANGLE45.0 DEGREES NOMINAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
2W-DUA-100Interchangeable
interchangeable cross-reference
interchangeable
100506Interchangeable
interchangeable cross-reference
interchangeable
100291Interchangeable
interchangeable cross-reference
interchangeable
SLS32-34Interchangeable
interchangeable cross-reference
interchangeable
10119292-101Interchangeable
interchangeable cross-reference
interchangeable
100291PInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 3H237?
3H237 is a WASHER,SHOULDERED AND RECESSED.
What parts can replace 3H237?
There are 10 known substitutes for 3H237: 2W-DUA-100, 100506, 100291 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3H237?
3H237 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-374-6103. 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