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Technical Data Sheet
PartsTable / COMPONENT / 494550-239
494550-239 ✓ 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 PIN,SPRING is a the manufacturer industrial component. Key specifications include diameter: 0.066 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN, material: STEEL COMP 410 OR STEEL COMP 420 OVERALL, overall_length: 0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN, shear_strength: 425 DOUBLE POUND, surface_finish: 80.0 MICROINCHES OUTSIDE DIAMETER, hardness_rating: 43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-584-0257, 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
494550-239
NSN: 5315-00-584-0257
FSC: 5315
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
diameter0.066 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
materialSTEEL COMP 410 OR STEEL COMP 420 OVERALL
overall_length0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
shear_strength425 DOUBLE POUND
surface_finish80.0 MICROINCHES OUTSIDE DIAMETER
hardness_rating43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
style_designatorSLOTTED
surface_treatmentPASSIVATE OVERALL
material_thickness0.012 INCHES NOMINAL IN
material_document_and_classification66 FED STD ALL MATERIAL RESPONSES OVERALL
surface_treatment_document_and_classificationASTM A380 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5315-00-584-0257
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 494550-239 · 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
•
HARDNESS RATING: 43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
•
SHEAR STRENGTH: 425 DOUBLE POUND
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
SURFACE FINISH: 80.0 MICROINCHES OUTSIDE DIAMETER
•
DIAMETER: 0.066 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 410 OR STEEL COMP 420 OVERALL
•
STYLE DESIGNATOR: SLOTTED
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD ALL MATERIAL RESPONSES OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
HARDNESS RATING43.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM OVERALL
SHEAR STRENGTH425 DOUBLE POUND
SURFACE TREATMENTPASSIVATE OVERALL
SURFACE FINISH80.0 MICROINCHES OUTSIDE DIAMETER
DIAMETER0.066 INCHES MINIMUM AND 0.069 INCHES MAXIMUM IN
MATERIALSTEEL COMP 410 OR STEEL COMP 420 OVERALL
STYLE DESIGNATORSLOTTED
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD ALL MATERIAL RESPONSES OVERALL
MATERIAL THICKNESS0.012 INCHES NOMINAL IN
OVERALL LENGTH0.735 INCHES MINIMUM AND 0.765 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 36
0495-11Interchangeable
interchangeable cross-reference
interchangeable
ASC1537581Interchangeable
interchangeable cross-reference
interchangeable
69950-12SInterchangeable
interchangeable cross-reference
interchangeable
2AN481Interchangeable
interchangeable cross-reference
interchangeable
F52-040-187-1750Interchangeable
interchangeable cross-reference
interchangeable
02270-04025Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 494550-239?
494550-239 is a PIN,SPRING.
What parts can replace 494550-239?
There are 36 known substitutes for 494550-239: 0495-11, ASC1537581, 69950-12S and 33 more. Substitute compatibility should be verified for your specific system.
Is 494550-239 still available?
494550-239 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026