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31JL48 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

31JL48: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_height: 0.484 INCHES NOMINAL IN, special_features: HEAVY;GRADE-C;FASTNER FINISH-PLAIN;THREAD TYPE-COARSE, thread_direction: RIGHT-HAND, width_across_flats: 0.875 INCHES NOMINAL IN, nominal_thread_size: 0.5 INCHES IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-701-0600, 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
31JL48
NSN: 5310-01-701-0600
FSC: 5310 — Nuts and Washers
CAGE: 0CLM1 — GRAINGER W W INC GRAINGER DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_height0.484 INCHES NOMINAL IN
special_featuresHEAVY;GRADE-C;FASTNER FINISH-PLAIN;THREAD TYPE-COARSE
thread_directionRIGHT-HAND
width_across_flats0.875 INCHES NOMINAL IN
nominal_thread_size0.5 INCHES IN
part_name_assigned_by_controlling_agencyHEX NUT, HEAVY
NSN5310-01-701-0600
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 31JL48 · 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: 0.875 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.5 INCHES IN
•
NUT HEIGHT: 0.484 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.875 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.5 INCHES IN
NUT HEIGHT0.484 INCHES NOMINAL IN
SPECIAL FEATURESHEAVY;GRADE-C;FASTNER FINISH-PLAIN;THREAD TYPE-COARSE
PART NAME ASSIGNED BY CONTROLLING AGENCYHEX NUT, HEAVY
MATERIALSTEEL 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
5310PL2148854Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 31JL48?
31JL48 is a NUT,PLAIN,HEXAGON.
What parts can replace 31JL48?
There is 1 known substitute for 31JL48: 5310PL2148854. Substitute compatibility should be verified for your specific system.
What is the NSN for 31JL48?
31JL48 is cataloged in the U.S. Government catalog under NSN 5310-01-701-0600. 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.