PartsTable
Technical Data Sheet
NAS686C4M ✓ 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 NUT,SELF-LOCKING,PLATE is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660 OVERALL, nut_style: PLATE, nut_height: 0.281 INCHES MAXIMUM IN, nut_length: 1.292 INCHES MAXIMUM IN, lubrication: DRY FILM LUBRICANT, plate_width: 0.350 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-779-6689, 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
NAS686C4M
NSN: 5310-00-779-6689
FSC: 5310
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
materialIRON ALLOY 660 OVERALL
nut_stylePLATE
nut_height0.281 INCHES MAXIMUM IN
nut_length1.292 INCHES MAXIMUM IN
lubricationDRY FILM LUBRICANT
plate_width0.350 INCHES MINIMUM AND 0.516 INCHES MAXIMUM IN
temp_rating450.0 FAHRENHEIT NOMINAL DEGF
thread_class3B
thread_seriesUNIFIED NATIONAL JOINT FINE (UNJF)
hardness_rating49.0 ROCKWELL C MAXIMUM
locking_featurePREVAILING TORQUE ALL METAL DESIGN
plate_thickness0.032 INCHES MAXIMUM IN
NSN5310-00-779-6689
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: NAS686C4M · 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 SERIES: UNIFIED NATIONAL JOINT FINE (UNJF)
NUT STYLE: PLATE
PLATE THICKNESS: 0.032 INCHES MAXIMUM IN
NUT LENGTH: 1.292 INCHES MAXIMUM IN
NOMINAL THREAD SIZE: 0.250 INCHES IN
TEMP RATING: 450.0 FAHRENHEIT NOMINAL DEGF
NUT MOUNTING PROVISION: STRAIGHT HOLES
MOUNTING HOLE DIAMETER: 0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD SERIESUNIFIED NATIONAL JOINT FINE (UNJF)
NUT STYLEPLATE
PLATE THICKNESS0.032 INCHES MAXIMUM IN
NUT LENGTH1.292 INCHES MAXIMUM IN
NOMINAL THREAD SIZE0.250 INCHES IN
TEMP RATING450.0 FAHRENHEIT NOMINAL DEGF
NUT MOUNTING PROVISIONSTRAIGHT HOLES
MOUNTING HOLE DIAMETER0.098 INCHES MINIMUM AND 0.103 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5525 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5735 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD CLASS3B
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
F5001-4Interchangeable
interchangeable cross-reference
interchangeable
3196521Interchangeable
interchangeable cross-reference
interchangeable
3290Interchangeable
interchangeable cross-reference
interchangeable
37016Interchangeable
interchangeable cross-reference
interchangeable
13705E-048Interchangeable
Same NIIN cross-reference
interchangeable
RMLHTA521-2860-048Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS686C4M?
NAS686C4M is a NUT,SELF-LOCKING,PLATE.
What parts can replace NAS686C4M?
There are 11 known substitutes for NAS686C4M: F5001-4, 3196521, 3290 and 8 more. Substitute compatibility should be verified for your specific system.
Is NAS686C4M still available?
NAS686C4M is currently cancelled.
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