PartsTable
Technical Data Sheet
Download PDF

K245821 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

K245821: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, hole_diameter: 0.558 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN, heat_treatment: AS FABRICATED, overall_height: 0.046 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN, outside_diameter: 1.302 INCHES MINIMUM AND 1.306 INCHES MAXIMUM IN, special_features: ONE NOTCH 0.036 IN. W BY 0.060 IN.

DEEP ON OUTER EDGE IN. This part is cataloged in the U.S. Government catalog under NSN 5310-00-010-4781, 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
K245821
NSN: 5310-00-010-4781
FSC: 5310 — Nuts and Washers
CAGE: 62228 — MEGGITT DEFENSE SYSTEMS, INC. DBA MEGGITT DEFENSE SYSTEMS INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
hole_diameter0.558 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
heat_treatmentAS FABRICATED
overall_height0.046 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN
outside_diameter1.302 INCHES MINIMUM AND 1.306 INCHES MAXIMUM IN
special_featuresONE NOTCH 0.036 IN. W BY 0.060 IN. DEEP ON OUTER EDGE IN
surface_treatmentPASSIVATE OVERALL
material_thickness0.008 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN
material_document_and_classification213200 FSCM 33525 MFR REF SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-010-4781
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: K245821 · 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
•
HEAT TREATMENT: AS FABRICATED
•
MATERIAL DOCUMENT AND CLASSIFICATION: 213200 FSCM 33525 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.302 INCHES MINIMUM AND 1.306 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.008 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.046 INCHES MINIMUM AND 0.051 INCHES MAXIMUM IN
HEAT TREATMENTAS FABRICATED
MATERIAL DOCUMENT AND CLASSIFICATION213200 FSCM 33525 MFR REF SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.302 INCHES MINIMUM AND 1.306 INCHES MAXIMUM IN
MATERIAL THICKNESS0.008 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN
SPECIAL FEATURESONE NOTCH 0.036 IN. W BY 0.060 IN. DEEP ON OUTER EDGE IN
SURFACE TREATMENTPASSIVATE OVERALL
MATERIALSTEEL CORROSION RESISTING OVERALL
HOLE DIAMETER0.558 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
245821Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy K245821?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is K245821?
K245821 is a WASHER,SPRING TENSION.
What parts can replace K245821?
There is 1 known substitute for K245821: 245821. Substitute compatibility should be verified for your specific system.
What is the NSN for K245821?
K245821 is cataloged in the U.S. Government catalog under NSN 5310-00-010-4781. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — K245821

✓ 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.