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Technical Data Sheet
PartsTable / COMPONENT / 164920
164920 ✓ 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 REACTOR is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4130 SPINDLE, body_length: 0.620 INCHES MAXIMUM IN, design_form: PLAIN, grip_length: 1.875 INCHES MINIMUM AND 1.895 INCHES MAXIMUM IN, bore_feature: INCLUDED, groove_width: 0.250 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 5315-00-961-7250, 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
164920
NSN: 5315-00-961-7250
FSC: 5315
CAGE: 12603 — CLARK EQUIPMENT CO (USA)
SPECIFICATIONS
materialSTEEL COMP 4130 SPINDLE
quantity2
body_length0.620 INCHES MAXIMUM IN
design_formPLAIN
grip_length1.875 INCHES MINIMUM AND 1.895 INCHES MAXIMUM IN
bore_featureINCLUDED
groove_width0.250 INCHES NOMINAL IN
groove_radius0.109 INCHES NOMINAL IN
handle_length2.220 INCHES MINIMUM AND 2.345 INCHES MAXIMUM IN
rating_methodELECTRICAL SINGLE COMPONENT SINGLE WINDING
actuation_typePUSH
inclosure_typeFULLY INCLOSED
NSN5315-00-961-7250
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 164920 · 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
•
SHANK DIAMETER: 0.4970 INCHES MINIMUM AND 0.4985 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM AND CHROMATE SPINDLE
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE SHANK
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE SPINDLE
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM SHANK
•
SHOULDER TO HEAD END DISTANCE: 1.600 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SHANK DIAMETER0.4970 INCHES MINIMUM AND 0.4985 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM AND CHROMATE SPINDLE
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 2 FED SPEC SINGLE TREATMENT RESPONSE SHANK
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE SPINDLE
SURFACE TREATMENTCADMIUM AND CHROMATE SHANK
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM SHANK
SHOULDER TO HEAD END DISTANCE1.600 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE SHANK
HARDNESS RATING58.0 ROCKWELL C MINIMUM AND 62.0 ROCKWELL C MAXIMUM DETENT
DETENT TO TAPERED END DISTANCE0.460 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
164920Interchangeable
interchangeable cross-reference
interchangeable
164920-1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 164920?
164920 is a REACTOR.
What parts can replace 164920?
There are 2 known substitutes for 164920: 164920, 164920-1. Substitute compatibility should be verified for your specific system.
What is the NSN for 164920?
164920 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-961-7250. 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