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5P217C — NUT,SELF-LOCKING,CONE SEAT,HEXAG

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

5P217C: NUT,SELF-LOCKING,CONE SEAT,HEXAG.

NUT,SELF-LOCKING,CONE SEAT,HEXAG. Key specifications include material: STEEL CORROSION RESISTING NUT, nut_style: CONE SEAT, HEXAGON, nut_height: 0.438 INCHES NOMINAL IN, thread_class: 2B, thread_series: UN, locking_feature: PREVAILING TORQUE WITH NONMETALLIC INSERT. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-537-8141, 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
5P217C
NSN: 5310-00-537-8141
FSC: 5310 — Nuts and Washers
CAGE: 71313 — VIKING TECHNOLOGIES, LTD. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING NUT
nut_styleCONE SEAT, HEXAGON
nut_height0.438 INCHES NOMINAL IN
thread_class2B
thread_seriesUN
locking_featurePREVAILING TORQUE WITH NONMETALLIC INSERT
thread_directionRIGHT-HAND
width_across_flats0.625 INCHES NOMINAL IN
nominal_thread_size0.375 INCHES IN
thread_quantity_per_inch28
NSN5310-00-537-8141
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5P217C · 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: 0.625 INCHES NOMINAL IN
•
THREAD SERIES: UN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.375 INCHES IN
•
LOCKING FEATURE: PREVAILING TORQUE WITH NONMETALLIC INSERT
•
NUT HEIGHT: 0.438 INCHES NOMINAL IN
•
NUT STYLE: CONE SEAT, HEXAGON
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.625 INCHES NOMINAL IN
THREAD SERIESUN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.375 INCHES IN
LOCKING FEATUREPREVAILING TORQUE WITH NONMETALLIC INSERT
NUT HEIGHT0.438 INCHES NOMINAL IN
NUT STYLECONE SEAT, HEXAGON
THREAD CLASS2B
THREAD QUANTITY PER INCH28
MATERIALSTEEL CORROSION RESISTING NUT
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 5P217C?
5P217C is a NUT,SELF-LOCKING,CONE SEAT,HEXAG.
What is the NSN for 5P217C?
5P217C is cataloged in the U.S. Government catalog under NSN 5310-00-537-8141. 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.