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21509N GRP3 PC5 — NUT,PLAIN,HEXAGON

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

21509N GRP3 PC5: NUT,PLAIN,HEXAGON.

The NUT,PLAIN,HEXAGON is a the manufacturer industrial component. Key specifications include special_features: 1/8 UNC; STEEL MATERIAL; COMPLIES WITH ASTNA-563, SAEJ995 GRADE 2 OR 5, ANSI B18.2.2, part_name_assigned_by_controlling_agency: NUT,PLAIN,HEXAGON. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-466-6378, 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
21509N GRP3 PC5
NSN: 5310-01-466-6378
FSC: 5310 — Nuts and Washers
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
special_features1/8 UNC; STEEL MATERIAL; COMPLIES WITH ASTNA-563, SAEJ995 GRADE 2 OR 5, ANSI B18.2.2
part_name_assigned_by_controlling_agencyNUT,PLAIN,HEXAGON
NSN5310-01-466-6378
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 21509N GRP3 PC5 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES1/8 UNC; STEEL MATERIAL; COMPLIES WITH ASTNA-563, SAEJ995 GRADE 2 OR 5, ANSI B18.2.2
PART NAME ASSIGNED BY CONTROLLING AGENCYNUT,PLAIN,HEXAGON
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 21509N GRP3 PC5?
21509N GRP3 PC5 is a NUT,PLAIN,HEXAGON.
What is the NSN for 21509N GRP3 PC5?
21509N GRP3 PC5 is cataloged in the U.S. Government catalog under NSN 5310-01-466-6378. 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.