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12319D18 — NUT,PLAIN,ROUND

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12319D18: NUT,PLAIN,ROUND.

The NUT,PLAIN,ROUND is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1215 OVERALL, nut_style: ROUND, nut_diameter: 2.495 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 0.937 INCHES NOMINAL IN, thread_series: UN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-361-9833, 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
12319D18
NSN: 5310-01-361-9833
FSC: 5310 — Nuts and Washers
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialSTEEL COMP 1215 OVERALL
nut_styleROUND
nut_diameter2.495 INCHES NOMINAL IN
thread_class2B
nut_thickness0.937 INCHES NOMINAL IN
thread_seriesUN
thread_directionRIGHT-HAND
nominal_thread_size1.375 INCHES IN
drive_point_diameter0.281 INCHES NOMINAL IN
drive_point_quantity3
thread_quantity_per_inch12
material_document_and_classificationASTMA108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-361-9833
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12319D18 · 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: UN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTMA108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.375 INCHES IN
•
NUT DIAMETER: 2.495 INCHES NOMINAL IN
•
NUT THICKNESS: 0.937 INCHES NOMINAL IN
•
DRIVE POINT DIAMETER: 0.281 INCHES NOMINAL IN
•
DRIVE POINT QUANTITY: 3
TECHNICAL CHARACTERISTICS
THREAD SERIESUN
MATERIAL DOCUMENT AND CLASSIFICATIONASTMA108 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.375 INCHES IN
NUT DIAMETER2.495 INCHES NOMINAL IN
NUT THICKNESS0.937 INCHES NOMINAL IN
DRIVE POINT DIAMETER0.281 INCHES NOMINAL IN
DRIVE POINT QUANTITY3
NUT STYLEROUND
THREAD CLASS2B
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

No substitute or cross-reference records for this part.

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 12319D18?
12319D18 is a NUT,PLAIN,ROUND.
What is the NSN for 12319D18?
12319D18 is cataloged in the U.S. Government catalog under NSN 5310-01-361-9833. 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.