PartsTable
Technical Data Sheet

HC-402J/0219 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

HC-402J/0219: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, nut_style: HEXAGON, nut_height: 0.469 INCHES NOMINAL IN, thread_class: 2B, thread_series: UN, thread_direction: RIGHT-HAND. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-181-2399, 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
HC-402J/0219
NSN: 5310-01-181-2399
FSC: 5310 — Nuts and Washers
CAGE: 16712 — SIEMENS ENERGY, INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
nut_styleHEXAGON
nut_height0.469 INCHES NOMINAL IN
thread_class2B
thread_seriesUN
thread_directionRIGHT-HAND
width_across_flats1.875 INCHES NOMINAL IN
nominal_thread_size1.375 INCHES IN
bearing_surface_typeCHAMFERED
counterbore_diameter1.645 INCHES MINIMUM AND 1.655 INCHES MAXIMUM FIRST END IN
nut_counterbore_depth0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM FIRST END IN
thread_quantity_per_inch16
NSN5310-01-181-2399
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: HC-402J/0219 · 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: 1.875 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
NUT COUNTERBORE DEPTH: 0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM FIRST END IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 1.375 INCHES IN
•
COUNTERBORE DIAMETER: 1.645 INCHES MINIMUM AND 1.655 INCHES MAXIMUM FIRST END IN
•
NUT HEIGHT: 0.469 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS1.875 INCHES NOMINAL IN
THREAD SERIESUN
NUT COUNTERBORE DEPTH0.089 INCHES MINIMUM AND 0.099 INCHES MAXIMUM FIRST END IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE1.375 INCHES IN
COUNTERBORE DIAMETER1.645 INCHES MINIMUM AND 1.655 INCHES MAXIMUM FIRST END IN
NUT HEIGHT0.469 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH16
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 2
S3213AReference document
Same NSN cross-reference
Reference document — Secondary reference
DD692-S4601-39 PIECE 52Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HC-402J/0219?
HC-402J/0219 is a NUT,PLAIN,HEXAGON.
What parts can replace HC-402J/0219?
There are 2 known substitutes for HC-402J/0219: S3213A, DD692-S4601-39 PIECE 52. Substitute compatibility should be verified for your specific system.
What is the NSN for HC-402J/0219?
HC-402J/0219 is cataloged in the U.S. Government catalog under NSN 5310-01-181-2399. 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.