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708486 ITEM 79 — NUT,SELF-LOCKING,SQUARE

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

708486 ITEM 79: NUT,SELF-LOCKING,SQUARE.

The NUT,SELF-LOCKING,SQUARE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: SQUARE, nut_height: 0.310 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN, thread_class: 2B, thread_series: UNIFIED NATIONAL COARSE (UNC), locking_feature: PREVAILING TORQUE ALL METAL DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-472-8907, 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
708486 ITEM 79
NSN: 5310-01-472-8907
FSC: 5310 — Nuts and Washers
CAGE: 58475 — L-3 COMMUNICATIONS WESTWOOD CORPORATION DBA NMP DIVISION DIV L3 WESTWOOD CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleSQUARE
nut_height0.310 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN
thread_class2B
thread_seriesUNIFIED NATIONAL COARSE (UNC)
locking_featurePREVAILING TORQUE ALL METAL DESIGN
thread_directionRIGHT-HAND
width_across_flats0.606 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
nominal_thread_size0.375 INCHES IN
bearing_surface_typeFLAT
thread_pitch_diameters+0.3344 TO 0.3401 INCHES IN
end_item_identificationUSED ON SUB ENGINEERING AND DIESEL SYSTEMS
NSN5310-01-472-8907
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 708486 ITEM 79 · 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: 0.606 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
THREAD PITCH DIAMETERS: +0.3344 TO 0.3401 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
LOCKING FEATURE: PREVAILING TORQUE ALL METAL DESIGN
•
NUT HEIGHT: 0.310 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN
•
NUT STYLE: SQUARE
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.606 INCHES MINIMUM AND 0.625 INCHES MAXIMUM IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
THREAD PITCH DIAMETERS+0.3344 TO 0.3401 INCHES IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
LOCKING FEATUREPREVAILING TORQUE ALL METAL DESIGN
NUT HEIGHT0.310 INCHES MINIMUM AND 0.346 INCHES MAXIMUM IN
NUT STYLESQUARE
THREAD CLASS2B
END ITEM IDENTIFICATIONUSED ON SUB ENGINEERING AND DIESEL SYSTEMS
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
PL708486Reference 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 708486 ITEM 79?
708486 ITEM 79 is a NUT,SELF-LOCKING,SQUARE.
What parts can replace 708486 ITEM 79?
There is 1 known substitute for 708486 ITEM 79: PL708486. Substitute compatibility should be verified for your specific system.
What is the NSN for 708486 ITEM 79?
708486 ITEM 79 is cataloged in the U.S. Government catalog under NSN 5310-01-472-8907. 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.