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1JE51 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1JE51: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, special_features: ZINC CHROMATE FINISH;STEEL;RIGHT HAND;LENGTH 1 INCH IN, width_across_flats: 0.50 INCHES NOMINAL IN, nominal_thread_size: 0.375 INCHES IN, part_name_assigned_by_controlling_agency: COUPLING NUT REDUCER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-701-0628, 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
1JE51
NSN: 5310-01-701-0628
FSC: 5310 — Nuts and Washers
CAGE: 0CLM1 — GRAINGER W W INC GRAINGER DIV (USA)
SPECIFICATIONS
materialSTEEL OVERALL
special_featuresZINC CHROMATE FINISH;STEEL;RIGHT HAND;LENGTH 1 INCH IN
width_across_flats0.50 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
part_name_assigned_by_controlling_agencyCOUPLING NUT REDUCER
NSN5310-01-701-0628
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1JE51 · 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: 0.50 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.50 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.375 INCHES IN
SPECIAL FEATURESZINC CHROMATE FINISH;STEEL;RIGHT HAND;LENGTH 1 INCH IN
PART NAME ASSIGNED BY CONTROLLING AGENCYCOUPLING NUT REDUCER
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
5310PL2148748Reference 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 1JE51?
1JE51 is a NUT,PLAIN,HEXAGON.
What parts can replace 1JE51?
There is 1 known substitute for 1JE51: 5310PL2148748. Substitute compatibility should be verified for your specific system.
What is the NSN for 1JE51?
1JE51 is cataloged in the U.S. Government catalog under NSN 5310-01-701-0628. 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.