PartsTable
Technical Data Sheet
Download PDF

S2110KA — WASHER,KEYWAY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

S2110KA: WASHER,KEYWAY.

The WASHER,KEYWAY is a the manufacturer industrial component. Key specifications include material: STEEL COMP C OVERALL, hole_diameter: 2.375 INCHES MINIMUM AND 2.380 INCHES MAXIMUM IN, outside_diameter: 4.500 INCHES NOMINAL IN, material_thickness: 0.625 INCHES NOMINAL IN, internal_keyway_width: 0.125 INCHES NOMINAL IN, material_document_and_classification: -9L-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-281-2468, 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
S2110KA
NSN: 5310-00-281-2468
FSC: 5310 — Nuts and Washers
CAGE: 59180 — CIRCOR PUMPS NORTH AMERICA LLC (USA)
SPECIFICATIONS
materialSTEEL COMP C OVERALL
hole_diameter2.375 INCHES MINIMUM AND 2.380 INCHES MAXIMUM IN
outside_diameter4.500 INCHES NOMINAL IN
material_thickness0.625 INCHES NOMINAL IN
internal_keyway_width0.125 INCHES NOMINAL IN
internal_keyway_quantity1
material_document_and_classification-9L-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
distance_from_centerline_to_bottom_of_internal_keyway1.252 INCHES NOMINAL IN
NSN5310-00-281-2468
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S2110KA · 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
•
DISTANCE FROM CENTERLINE TO BOTTOM OF INTERNAL KEYWAY: 1.252 INCHES NOMINAL IN
•
INTERNAL KEYWAY WIDTH: 0.125 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: -9L-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 4.500 INCHES NOMINAL IN
•
INTERNAL KEYWAY QUANTITY: 1
•
MATERIAL THICKNESS: 0.625 INCHES NOMINAL IN
•
MATERIAL: STEEL COMP C OVERALL
•
HOLE DIAMETER: 2.375 INCHES MINIMUM AND 2.380 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO BOTTOM OF INTERNAL KEYWAY1.252 INCHES NOMINAL IN
INTERNAL KEYWAY WIDTH0.125 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION-9L-S-890 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER4.500 INCHES NOMINAL IN
INTERNAL KEYWAY QUANTITY1
MATERIAL THICKNESS0.625 INCHES NOMINAL IN
MATERIALSTEEL COMP C OVERALL
HOLE DIAMETER2.375 INCHES MINIMUM AND 2.380 INCHES MAXIMUM 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 1
S2110KA0463Reference 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 S2110KA?
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 S2110KA?
S2110KA is a WASHER,KEYWAY.
What parts can replace S2110KA?
There is 1 known substitute for S2110KA: S2110KA0463. Substitute compatibility should be verified for your specific system.
What is the NSN for S2110KA?
S2110KA is cataloged in the U.S. Government catalog under NSN 5310-00-281-2468. 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 — S2110KA

✓ 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.