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PartsTable / COMPONENT / 98438A029
98438A029 ✓ 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,LOCK is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, end_item_identification: 1005-01-347-4857,BARRETT .50 CALIBER SEMI-AUTOMATIC RIFLE,MODEL 82A1A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-358-2986, 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
98438A029
NSN: 5310-01-358-2986
FSC: 5310
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
end_item_identification1005-01-347-4857,BARRETT .50 CALIBER SEMI-AUTOMATIC RIFLE,MODEL 82A1A
NSN5310-01-358-2986
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 98438A029 · 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 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
END ITEM IDENTIFICATION1005-01-347-4857,BARRETT .50 CALIBER SEMI-AUTOMATIC RIFLE,MODEL 82A1A
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
8205-3Interchangeable
interchangeable cross-reference
interchangeable
1826-0143Interchangeable
interchangeable cross-reference
interchangeable
820-19Interchangeable
interchangeable cross-reference
interchangeable
60511028-3Interchangeable
interchangeable cross-reference
interchangeable
72805Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 98438A029?
98438A029 is a WASHER,LOCK.
What parts can replace 98438A029?
There are 5 known substitutes for 98438A029: 8205-3, 1826-0143, 820-19 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 98438A029?
98438A029 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-358-2986. 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