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501-0555 PC 4 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

501-0555 PC 4: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include nut_style: HEXAGON, nut_height: 0.688 INCHES NOMINAL IN, thread_class: 3B, thread_series: UN, nominal_thread_size: 2.250 INCHES IN, end_item_identification: VALVE, BALL 2. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-513-9152, 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
501-0555 PC 4
NSN: 5310-01-513-9152
FSC: 5310 — Nuts and Washers
CAGE: 53154 — PORTLAND VALVE LLC (USA)
SPECIFICATIONS
nut_styleHEXAGON
nut_height0.688 INCHES NOMINAL IN
thread_class3B
thread_seriesUN
nominal_thread_size2.250 INCHES IN
end_item_identificationVALVE, BALL 2
thread_quantity_per_inch16
NSN5310-01-513-9152
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 501-0555 PC 4 · 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
•
NOMINAL THREAD SIZE: 2.250 INCHES IN
•
NUT HEIGHT: 0.688 INCHES NOMINAL IN
•
NUT STYLE: HEXAGON
•
THREAD CLASS: 3B
•
THREAD QUANTITY PER INCH: 16
TECHNICAL CHARACTERISTICS
THREAD SERIESUN
NOMINAL THREAD SIZE2.250 INCHES IN
NUT HEIGHT0.688 INCHES NOMINAL IN
NUT STYLEHEXAGON
THREAD CLASS3B
END ITEM IDENTIFICATIONVALVE, BALL 2
THREAD QUANTITY PER INCH16
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 501-0555 PC 4?
501-0555 PC 4 is a NUT,PLAIN,HEXAGON.
What is the NSN for 501-0555 PC 4?
501-0555 PC 4 is cataloged in the U.S. Government catalog under NSN 5310-01-513-9152. 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.