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Technical Data Sheet
PartsTable / COMPONENT / X5008/12/151-20
X5008/12/151-20 ✓ 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 X5008/12/151-20 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-343-9737, 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
X5008/12/151-20
NSN: 5310-01-343-9737
FSC: 5310
CAGE: K7018 — WELLMAN GROUP (GBR)
SPECIFICATIONS
Part NumberX5008/12/151-20
NSN5310-01-343-9737
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: X5008/12/151-20 · 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
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
BEARING SURFACE TYPE: FLAT
•
WIDTH ACROSS FLATS: 0.625 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.250 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD QUANTITY PER INCH: 20
•
NUT STYLE: SQUARE
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL CORROSION RESISTING OVERALL
BEARING SURFACE TYPEFLAT
WIDTH ACROSS FLATS0.625 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.250 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD QUANTITY PER INCH20
NUT STYLESQUARE
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
N8-2Interchangeable
interchangeable cross-reference
interchangeable
0209985-1Interchangeable
interchangeable cross-reference
interchangeable
230433Interchangeable
interchangeable cross-reference
interchangeable
10006Interchangeable
interchangeable cross-reference
interchangeable
10813Interchangeable
interchangeable cross-reference
interchangeable
15120Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is X5008/12/151-20?
X5008/12/151-20 is a X5008/12/151-20.
What parts can replace X5008/12/151-20?
There are 20 known substitutes for X5008/12/151-20: N8-2, 0209985-1, 230433 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for X5008/12/151-20?
X5008/12/151-20 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-343-9737. 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