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76-3718-13 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

76-3718-13: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include nut_height: 0.270 INCHES NOMINAL IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), special_features: THREAD NUMBER 6-32UNC-2B THRU, width_across_flats: 0.370 INCHES NOMINAL IN, hole_type_and_quantity: 1 TAPPED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-591-7932, 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
76-3718-13
NSN: 5310-01-591-7932
FSC: 5310 — Nuts and Washers
CAGE: 41364 — VIAVI SOLUTIONS LLC DIV LENEXA (USA)
SPECIFICATIONS
nut_height0.270 INCHES NOMINAL IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresTHREAD NUMBER 6-32UNC-2B THRU
width_across_flats0.370 INCHES NOMINAL IN
hole_type_and_quantity1 TAPPED
end_item_identification4940-01-490-6725 TEST SET,FUEL CONTROL SYSTEM
part_name_assigned_by_controlling_agencySHOULDER NUT LID-STAY
NSN5310-01-591-7932
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 76-3718-13 · 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
•
WIDTH ACROSS FLATS: 0.370 INCHES NOMINAL IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NUT HEIGHT: 0.270 INCHES NOMINAL IN
•
THREAD CLASS: 2B
•
HOLE TYPE AND QUANTITY: 1 TAPPED
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.370 INCHES NOMINAL IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NUT HEIGHT0.270 INCHES NOMINAL IN
SPECIAL FEATURESTHREAD NUMBER 6-32UNC-2B THRU
PART NAME ASSIGNED BY CONTROLLING AGENCYSHOULDER NUT LID-STAY
THREAD CLASS2B
END ITEM IDENTIFICATION4940-01-490-6725 TEST SET,FUEL CONTROL SYSTEM
HOLE TYPE AND QUANTITY1 TAPPED
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 76-3718-13?
76-3718-13 is a NUT,SELF-LOCKING,HEXAGON.
What is the NSN for 76-3718-13?
76-3718-13 is cataloged in the U.S. Government catalog under NSN 5310-01-591-7932. 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.