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PartsTable / COMPONENT / 170800
170800 ✓ 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 COMP 8620 OVERALL, head_height: 0.125 INCHES NOMINAL IN, thread_class: 3A EXTERNAL A, head_diameter: 0.344 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN, thread_length: 0.188 INCHES NOMINAL EXTERNAL IN, overall_length: 0.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-261-6198, 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
170800
NSN: 5310-00-261-6198
FSC: 5310
CAGE: 30323 — ILLINOIS TOOL WORKS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 8620 OVERALL
head_height0.125 INCHES NOMINAL IN
thread_class3A EXTERNAL A
head_diameter0.344 INCHES MINIMUM AND 0.348 INCHES MAXIMUM IN
thread_length0.188 INCHES NOMINAL EXTERNAL IN
overall_length0.375 INCHES NOMINAL IN
connection_stylePLAIN
style_designatorPLUG, MACHINE
thread_directionRIGHT-HAND EXTERNAL
surface_treatmentZINC OVERALL
nominal_thread_size0.190 INCHES EXTERNAL IN
thread_series_designatorUNF EXTERNAL
NSN5310-00-261-6198
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 170800 · 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 DOCUMENT AND CLASSIFICATION: AISI 410 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
STYLE DESIGNATOR: FLAT INTERNAL TEETH
•
MATERIAL THICKNESS: 0.018 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.168 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 410 OVERALL
•
OUTSIDE DIAMETER: 0.325 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONAISI 410 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
STYLE DESIGNATORFLAT INTERNAL TEETH
MATERIAL THICKNESS0.018 INCHES MINIMUM AND 0.023 INCHES MAXIMUM IN
HOLE DIAMETER0.168 INCHES MINIMUM AND 0.176 INCHES MAXIMUM IN
MATERIALSTEEL COMP 410 OVERALL
OUTSIDE DIAMETER0.325 INCHES MINIMUM AND 0.340 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
170800Interchangeable
interchangeable cross-reference
interchangeable
9028679Interchangeable
interchangeable cross-reference
interchangeable
88-54212Interchangeable
interchangeable cross-reference
interchangeable
10404Interchangeable
interchangeable cross-reference
interchangeable
1113569Interchangeable
interchangeable cross-reference
interchangeable
04550002-006Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 170800?
170800 is a WASHER,LOCK.
What parts can replace 170800?
There are 17 known substitutes for 170800: 170800, 9028679, 88-54212 and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 170800?
170800 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-261-6198. 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