PartsTable
Technical Data Sheet
Download PDF

2J5997 — NUT,SELF-LOCKING,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2J5997: NUT,SELF-LOCKING,HEXAGON.

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, thread_series: UNIFIED NATIONAL COARSE (UNC), special_features: FINE GRAIN STEEL;RESIST LOOSENING UNDER VIBRATION;, nominal_thread_size: 1.250 INCHES IN, hole_type_and_quantity: 1 TAPPED. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-201-4768, 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
2J5997
NSN: 5310-01-201-4768
FSC: 5310 — Nuts and Washers
CAGE: 11083 — CATERPILLAR INC DIV CATERPILLAR DEFENSE (USA)
SPECIFICATIONS
nut_styleHEXAGON
thread_seriesUNIFIED NATIONAL COARSE (UNC)
special_featuresFINE GRAIN STEEL;RESIST LOOSENING UNDER VIBRATION;
nominal_thread_size1.250 INCHES IN
hole_type_and_quantity1 TAPPED
thread_quantity_per_inch7
NSN5310-01-201-4768
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2J5997 · 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
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 1.250 INCHES IN
•
NUT STYLE: HEXAGON
•
THREAD QUANTITY PER INCH: 7
•
HOLE TYPE AND QUANTITY: 1 TAPPED
TECHNICAL CHARACTERISTICS
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE1.250 INCHES IN
SPECIAL FEATURESFINE GRAIN STEEL;RESIST LOOSENING UNDER VIBRATION;
NUT STYLEHEXAGON
THREAD QUANTITY PER INCH7
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 1
5R5162Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 2J5997?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 2J5997?
2J5997 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 2J5997?
There is 1 known substitute for 2J5997: 5R5162. Substitute compatibility should be verified for your specific system.
What is the NSN for 2J5997?
2J5997 is cataloged in the U.S. Government catalog under NSN 5310-01-201-4768. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 2J5997

✓ 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.