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PartsTable / COMPONENT / 68270-2
68270-2 ✓ 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 RESISTOR SET,MATCHED is a the manufacturer industrial component. Key specifications include material: STEEL COMP 4140 OVERALL, shank_length: 0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN, overall_length: 0.537 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN, shank_diameter: 0.1878 INCHES MINIMUM AND 0.1881 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES OVERALL, first_end_style: SQUARE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-758-9946, 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
68270-2
NSN: 5315-00-758-9946
FSC: 5315
CAGE: 99167 — HAMILTON SUNDSTRAND CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 4140 OVERALL
shank_length0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
overall_length0.537 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
shank_diameter0.1878 INCHES MINIMUM AND 0.1881 INCHES MAXIMUM IN
surface_finish63.0 MICROINCHES OVERALL
first_end_styleSQUARE
hardness_rating40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
special_featuresSHOULDER END IS DIAMOND SHAPED
style_designatorSHOULDER
shoulder_diameter0.2500 INCHES MINIMUM AND 0.2504 INCHES MAXIMUM IN
first_end_locationBOTH ENDS
material_document_and_classificationMIL-S-5626,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5315-00-758-9946
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68270-2 · 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
•
SURFACE FINISH: 63.0 MICROINCHES OVERALL
•
STYLE DESIGNATOR: SHOULDER
•
MATERIAL: STEEL COMP 4140 OVERALL
•
FIRST END LOCATION: BOTH ENDS
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5626,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
SHANK LENGTH: 0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISH63.0 MICROINCHES OVERALL
STYLE DESIGNATORSHOULDER
SPECIAL FEATURESSHOULDER END IS DIAMOND SHAPED
MATERIALSTEEL COMP 4140 OVERALL
FIRST END LOCATIONBOTH ENDS
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5626,COND C MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
SHANK LENGTH0.183 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
SHOULDER DIAMETER0.2500 INCHES MINIMUM AND 0.2504 INCHES MAXIMUM IN
OVERALL LENGTH0.537 INCHES MINIMUM AND 0.557 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
161-51Interchangeable
interchangeable cross-reference
interchangeable
161-05100Interchangeable
interchangeable cross-reference
interchangeable
68270-2Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 68270-2?
68270-2 is a RESISTOR SET,MATCHED.
What parts can replace 68270-2?
There are 3 known substitutes for 68270-2: 161-51, 161-05100, 68270-2. Substitute compatibility should be verified for your specific system.
What is the NSN for 68270-2?
68270-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-758-9946. 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