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EK1CR813E — NUT,IMPELLER

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

EK1CR813E: NUT,IMPELLER.

The NUT,IMPELLER is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5310-00-121-0450, 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
EK1CR813E
NSN: 5310-00-121-0450
FSC: 5310 — Nuts and Washers
CAGE: 26233 — NYLOK LLC (USA)
SPECIFICATIONS
Part NumberEK1CR813E
NSN5310-00-121-0450
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: EK1CR813E · 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
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GENERAL CHARACTERISTICS ITEM DESCRIPTION: HEXAGON SHAPE 0.736 IN.MIN,0.750 IN.MAX DIA;0.740 IN.MIN,0.760 IN.MAX H;ROUNDED TOP 0.677 IN.MIN,0.697 IN.MAX DIA,0.312 IN.RADIUS;HEXAGON FLATS 0.365 IN.MIN,0.385 IN.MAX H;1/2-13UNC-2B THD,MINOR MAJOR DIA 0.417,0.434,P.D. 0.4500,0.4565;CORROSION RESISTANT STEEL IN
TECHNICAL CHARACTERISTICS
GENERAL CHARACTERISTICS ITEM DESCRIPTIONHEXAGON SHAPE 0.736 IN.MIN,0.750 IN.MAX DIA;0.740 IN.MIN,0.760 IN.MAX H;ROUNDED TOP 0.677 IN.MIN,0.697 IN.MAX DIA,0.312 IN.RADIUS;HEXAGON FLATS 0.365 IN.MIN,0.385 IN.MAX H;1/2-13UNC-2B THD,MINOR MAJOR DIA 0.417,0.434,P.D. 0.4500,0.4565;CORROSION RESISTANT STEEL IN
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is EK1CR813E?
EK1CR813E is a NUT,IMPELLER.
What is the NSN for EK1CR813E?
EK1CR813E is cataloged in the U.S. Government catalog under NSN 5310-00-121-0450. 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.