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F79NCFMA1-40 — NUT,SELF-LOCKING,CLINCH

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

F79NCFMA1-40: NUT,SELF-LOCKING,CLINCH.

The NUT,SELF-LOCKING,CLINCH is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING INSERT, nut_style: CLINCH, nut_height: 0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN, temp_rating: 350.0 FAHRENHEIT NOMINAL DEGF, nut_diameter: 0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN, pilot_length: 0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-500-3533, 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
F79NCFMA1-40
NSN: 5310-00-500-3533
FSC: 5310 — Nuts and Washers
CAGE: 019L2 — ESNA, LLC (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON LOCKING INSERT
nut_styleCLINCH
nut_height0.080 INCHES MINIMUM AND 0.100 INCHES MAXIMUM IN
temp_rating350.0 FAHRENHEIT NOMINAL DEGF
nut_diameter0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
pilot_length0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
thread_class3B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
pilot_diameter0.182 INCHES NOMINAL IN
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
surface_treatmentCADMIUM OVERALL EXCEPT INSERT
NSN5310-00-500-3533
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: F79NCFMA1-40 · 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 TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
TEMP RATING: 350.0 FAHRENHEIT NOMINAL DEGF
•
NUT COUNTERBORE DEPTH: 0.040 INCHES NOMINAL NUT IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.112 INCHES IN
•
NUT DIAMETER: 0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
•
COUNTERBORE DIAMETER: 0.130 INCHES NOMINAL NUT IN
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL EXCEPT INSERT
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
TEMP RATING350.0 FAHRENHEIT NOMINAL DEGF
NUT COUNTERBORE DEPTH0.040 INCHES NOMINAL NUT IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.112 INCHES IN
NUT DIAMETER0.198 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
COUNTERBORE DIAMETER0.130 INCHES NOMINAL NUT IN
PILOT DIAMETER0.182 INCHES NOMINAL IN
PILOT LENGTH0.037 INCHES MINIMUM AND 0.043 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is F79NCFMA1-40?
F79NCFMA1-40 is a NUT,SELF-LOCKING,CLINCH.
What is the NSN for F79NCFMA1-40?
F79NCFMA1-40 is cataloged in the U.S. Government catalog under NSN 5310-00-500-3533. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.