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13102631-2 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

13102631-2: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGONHEXAGON, nut_height: 0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.415 INCHES MAXIMUM0.415 INCHES MAXIMUM IN, thread_class: 2B2B, thread_series: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC), locking_feature: PREVAILING TORQUE ALL METAL DESIGNPREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-707-0839, 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
13102631-2
NSN: 5310-01-707-0839
FSC: 5310 — Nuts and Washers
CAGE: 19200 — COMBAT CAPABILITIES DEVELOPMENT COMMAND (CCDC) ARMAMENTS CENTER DBA CCDC DIV LOGISTICS RESEARCH AND ENGINEERING DIRECTORATE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGONHEXAGON
nut_height0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.415 INCHES MAXIMUM0.415 INCHES MAXIMUM IN
thread_class2B2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE ALL METAL DESIGNPREVAILING TORQUE ALL METAL DESIGN
special_featuresCOLOR BLACK,CHIP NO. 37030 OF AMS-STD-595COLOR BLACK,CHIP NO. 37030 OF AMS-STD-595
thread_directionRIGHT-HANDRIGHT-HAND
surface_treatmentPASSIVATE AND ZINC AND ALUMINUM OVERALL
width_across_flats0.551 INCHES MINIMUM AND 0.551 INCHES MINIMUM AND 0.564 INCHES MAXIMUM0.564 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES0.375 INCHES IN
bearing_surface_typeCHAMFEREDCHAMFERED
NSN5310-01-707-0839
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 13102631-2 · 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: 0.551 INCHES MINIMUM AND 0.551 INCHES MINIMUM AND 0.564 INCHES MAXIMUM0.564 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: 19207-12424710,METHOD 4 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE J995 INTERNATIONAL STD/SPEC 4TH MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HANDRIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES0.375 INCHES IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGNPREVAILING TORQUE ALL METAL DESIGN
•
NUT HEIGHT: 0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.415 INCHES MAXIMUM0.415 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.551 INCHES MINIMUM AND 0.551 INCHES MINIMUM AND 0.564 INCHES MAXIMUM0.564 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION19207-12424710,METHOD 4 MFR REF SINGLE TREATMENT RESPONSE OVERALL
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)UNIFIED NATIONAL COARSE (UNC)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE J995 INTERNATIONAL STD/SPEC 4TH MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HANDRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES0.375 INCHES IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGNPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT0.320 INCHES MINIMUM AND 0.320 INCHES MINIMUM AND 0.415 INCHES MAXIMUM0.415 INCHES MAXIMUM IN
SPECIAL FEATURESCOLOR BLACK,CHIP NO. 37030 OF AMS-STD-595COLOR BLACK,CHIP NO. 37030 OF AMS-STD-595
SURFACE TREATMENTPASSIVATE AND ZINC AND ALUMINUM OVERALL
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 1
13102631Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 13102631-2?
13102631-2 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 13102631-2?
There is 1 known substitute for 13102631-2: 13102631. Substitute compatibility should be verified for your specific system.
What is the NSN for 13102631-2?
13102631-2 is cataloged in the U.S. Government catalog under NSN 5310-01-707-0839. 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.