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Y38 ✓ 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 GEAR,SPUR is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 2024 OVERALL, end_style: SMALL OFFSET HOOK AT SIDE OVERALL, nut_height: 1.495 INCHES NOMINAL IN, hook_radius: 0.312 INCHES NOMINAL OVERALL IN, thread_class: 2B, coil_quantity: 91.0. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-148-0912, 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
Y38
NSN: 5310-00-148-0912
FSC: 5310
CAGE: 27554 — WILDFIRE PACIFIC INC (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024 OVERALL
end_styleSMALL OFFSET HOOK AT SIDE OVERALL
nut_height1.495 INCHES NOMINAL IN
hook_radius0.312 INCHES NOMINAL OVERALL IN
thread_class2B
coil_quantity91.0
thread_seriesUNS
teeth_quantity54
inside_diameter5.087 INCHES NOMINAL IN
style_designatorSINGLE TORSION LEFT HAND
thread_directionRIGHT-HAND
spring_free_length50.000 INCHES NOMINAL IN
NSN5310-00-148-0912
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: Y38 · 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: UNS
•
BEARING SURFACE TYPE: FLAT
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
THREAD QUANTITY PER INCH: 24
•
WIDTH ACROSS FLATS: 0.625 INCHES NOMINAL IN
•
THREAD CLASS: 2B
•
MATERIAL: STEEL OVERALL
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNS
BEARING SURFACE TYPEFLAT
NOMINAL THREAD SIZE0.500 INCHES IN
THREAD QUANTITY PER INCH24
WIDTH ACROSS FLATS0.625 INCHES NOMINAL IN
THREAD CLASS2B
MATERIALSTEEL OVERALL
THREAD DIRECTIONRIGHT-HAND
NUT HEIGHT1.495 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
946068Interchangeable
interchangeable cross-reference
interchangeable
Y38Interchangeable
interchangeable cross-reference
interchangeable
UL3211-1Interchangeable
interchangeable cross-reference
interchangeable
UL3211-1 PIECE 42 X 43Interchangeable
interchangeable cross-reference
interchangeable
107PC1Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is Y38?
Y38 is a GEAR,SPUR.
What parts can replace Y38?
There are 5 known substitutes for Y38: 946068, Y38, UL3211-1 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for Y38?
Y38 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-148-0912. 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