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PartsTable / COMPONENT / NAS1726C4PE
NAS1726C4PE ✓ 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

NUT,SELF-LOCKING,ASSEMBLED WASHE. Key specifications include material: STEEL CORROSION RESISTING OVERALL, nut_style: FLAT WITH TURNED UP EDGE, thread_class: 3B, thread_series: UNIFIED NATIONAL JOINT FINE (UNJF), overall_height: 0.233 INCHES NOMINAL IN, locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-550-2433, 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
NAS1726C4PE
NSN: 5310-01-550-2433
FSC: 5310
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
nut_styleFLAT WITH TURNED UP EDGE
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
overall_height0.233 INCHES NOMINAL IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresCONTROL
thread_directionRIGHT-HAND
countersink_angle4.0 DEGREES NOMINAL FIRST END
surface_treatmentPASSIVATE OVERALL
width_across_flats0.221 INCHES MAXIMUM IN
nominal_thread_size0.190 INCHES IN
NSN5310-01-550-2433
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS1726C4PE · 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
•
THREAD DIRECTION: RIGHT-HAND
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
THREAD QUANTITY PER INCH: 32
•
THREAD SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
•
NOMINAL THREAD SIZE: 0.190 INCHES IN
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
•
SURFACE TREATMENT: PASSIVATE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
THREAD QUANTITY PER INCH32
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
NOMINAL THREAD SIZE0.190 INCHES IN
MATERIALSTEEL CORROSION RESISTING OVERALL
SURFACE TREATMENTPASSIVATE OVERALL
SPECIAL FEATURESCONTROL
COUNTERSINK ANGLE4.0 DEGREES NOMINAL FIRST END
WIDTH ACROSS FLATS0.221 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
952062Interchangeable
interchangeable cross-reference
interchangeable
27239Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS1726C4PE?
NAS1726C4PE is a NUT,SELF-LOCKING,ASSEMBLED WASHE.
What parts can replace NAS1726C4PE?
There are 2 known substitutes for NAS1726C4PE: 952062, 27239. Substitute compatibility should be verified for your specific system.
What is the NSN for NAS1726C4PE?
NAS1726C4PE is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-550-2433. 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