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68774-3 ✓ 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

FILTER ELEMENT,INTAKE AIR CLEANE. Key specifications include material: STEEL OVERALL, shank_length: 0.590 INCHES NOMINAL IN, overall_length: 1.250 INCHES NOMINAL IN, shank_diameter: 0.3605 INCHES MINIMUM AND 0.3615 INCHES MAXIMUM IN, first_end_style: CHAMFERED, hardness_rating: 30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-098-1814, 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
68774-3
NSN: 5315-00-098-1814
FSC: 5315
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
shank_length0.590 INCHES NOMINAL IN
overall_length1.250 INCHES NOMINAL IN
shank_diameter0.3605 INCHES MINIMUM AND 0.3615 INCHES MAXIMUM IN
first_end_styleCHAMFERED
hardness_rating30.0 ROCKWELL C MINIMUM AND 35.0 ROCKWELL C MAXIMUM OVERALL
special_features0.046 IN. DIA OVERSIZE IN
style_designatorSHOULDER
features_providedCASEHARDENED
shoulder_diameter0.440 INCHES NOMINAL IN
first_end_locationBOTH ENDS
second_shank_length0.599 INCHES NOMINAL IN
NSN5315-00-098-1814
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 68774-3 · 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
•
FIRST END STYLE: CHAMFERED
•
SECOND SHANK LENGTH: 0.599 INCHES NOMINAL IN
•
FIRST END TAPER LENGTH: 0.020 INCHES NOMINAL IN
•
FEATURES PROVIDED: CASEHARDENED
•
MATERIAL DOCUMENT AND CLASSIFICATION: NITRALLOY 135 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
FIRST END LOCATION: BOTH ENDS
•
SECOND SHANK DIAMETER: 0.2335 INCHES MINIMUM AND 0.2345 INCHES MAXIMUM IN
•
SHANK LENGTH: 0.590 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
FIRST END STYLECHAMFERED
SECOND SHANK LENGTH0.599 INCHES NOMINAL IN
FIRST END TAPER LENGTH0.020 INCHES NOMINAL IN
FEATURES PROVIDEDCASEHARDENED
MATERIAL DOCUMENT AND CLASSIFICATIONNITRALLOY 135 MFR REF SINGLE MATERIAL RESPONSE OVERALL
FIRST END LOCATIONBOTH ENDS
SECOND SHANK DIAMETER0.2335 INCHES MINIMUM AND 0.2345 INCHES MAXIMUM IN
SHANK LENGTH0.590 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SHANK DIAMETER0.3605 INCHES MINIMUM AND 0.3615 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
101234Interchangeable
interchangeable cross-reference
interchangeable
HDA-1234Interchangeable
interchangeable cross-reference
interchangeable
P18-1045Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 68774-3?
68774-3 is a FILTER ELEMENT,INTAKE AIR CLEANE.
What parts can replace 68774-3?
There are 3 known substitutes for 68774-3: 101234, HDA-1234, P18-1045. Substitute compatibility should be verified for your specific system.
What is the NSN for 68774-3?
68774-3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-098-1814. 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