PartsTable
Technical Data Sheet
493001 ✓ 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 shape: ROUND, material: PLASTIC POLYCARBONATE LENS, lens_color: COLORLESS, overall_length: 1.875 INCHES NOMINAL IN, mounting_method: UNTHREADED HOLE(S), overall_diameter: 5.438 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-579-0079, 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
493001
NSN: 5310-00-579-0079
FSC: 5310
CAGE: 18794 — BASIC INC SUB OF COMBUSTION ENGINEERING INC (USA)
SPECIFICATIONS
shapeROUND
materialPLASTIC POLYCARBONATE LENS
lens_colorCOLORLESS
overall_length1.875 INCHES NOMINAL IN
mounting_methodUNTHREADED HOLE(S)
overall_diameter5.438 INCHES NOMINAL IN
lens_transparencyTRANSPARENT
lens_surface_conditionSMOOTH FACE
lens_type_and_quantity1 PLANO CONVEX
voltage_rating_in_volts12.0 DC NOMINAL
wiring_provision_methodINDIVIDUAL WIRE
terminal_type_and_quantity1 WIRE LEAD
NSN5310-00-579-0079
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 493001 · 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
OUTSIDE DIAMETER: 0.275 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
STYLE DESIGNATOR: FLAT INTERNAL TEETH
SURFACE TREATMENT: CADMIUM AND CHROMATE OVERALL
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL THICKNESS: 0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
MATERIAL: STEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OUTSIDE DIAMETER0.275 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
STYLE DESIGNATORFLAT INTERNAL TEETH
SURFACE TREATMENTCADMIUM AND CHROMATE OVERALL
END ITEM IDENTIFICATIONARMORED MULTI-PURPOSE VEHICLE (AMPV)
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 50.0 ROCKWELL C MAXIMUM
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MATERIAL THICKNESS0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
MATERIALSTEEL COMP 1050 OR STEEL COMP 1551 OR STEEL COMP 1059 OR STEEL COMP 1060 OR STEEL COMP 1561 OR STEEL COMP 1064 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
HOLE DIAMETER0.141 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 33
1224Interchangeable
interchangeable cross-reference
interchangeable
1229G423Interchangeable
interchangeable cross-reference
interchangeable
115551Interchangeable
interchangeable cross-reference
interchangeable
5310PL0652572Interchangeable
interchangeable cross-reference
interchangeable
MS35333-33Interchangeable
interchangeable cross-reference
interchangeable
MILW6986Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 493001?
493001 is a WASHER,LOCK.
What parts can replace 493001?
There are 33 known substitutes for 493001: 1224, 1229G423, 115551 and 30 more. Substitute compatibility should be verified for your specific system.
Is 493001 still available?
493001 is currently cancelled.
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