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10003173 ✓ 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 NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, nominal_thread_size: 0.625 INCHES IN, end_item_identification: MASTIFF 3, part_name_assigned_by_controlling_agency: LOCKNUT. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-600-1568, 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
10003173
NSN: 5310-01-600-1568
FSC: 5310
CAGE: 1EFH8 — GENERAL DYNAMICS LAND SYSTEMS - FORCE PROTECTION INC. DBA GDLS DIV GDLS-FP (USA)
SPECIFICATIONS
nut_styleHEXAGON
nominal_thread_size0.625 INCHES IN
end_item_identificationMASTIFF 3
part_name_assigned_by_controlling_agencyLOCKNUT
NSN5310-01-600-1568
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10003173 · 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
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYLOCKNUT
END ITEM IDENTIFICATIONMASTIFF 3
NOMINAL THREAD SIZE0.625 INCHES IN
NUT STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
TP-1-75Interchangeable
interchangeable cross-reference
interchangeable
TP-75Interchangeable
interchangeable cross-reference
interchangeable
151-370-1Interchangeable
interchangeable cross-reference
interchangeable
10003153Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 10003173?
10003173 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 10003173?
There are 4 known substitutes for 10003173: TP-1-75, TP-75, 151-370-1 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10003173?
10003173 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-600-1568. 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