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10-85952-4 — WASHER,KEYWAY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

10-85952-4: WASHER,KEYWAY.

The WASHER,KEYWAY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.531 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN, outside_diameter: 1.229 INCHES MINIMUM AND 1.239 INCHES MAXIMUM IN, material_thickness: 0.015 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN, internal_keyway_width: 0.188 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: NAVY SPECIAL PROJECT. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-515-9744, 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
10-85952-4
NSN: 5310-00-515-9744
FSC: 5310 — Nuts and Washers
CAGE: 03950 — NAVAL INVENTORY CONTROL POINT MECHANICSBURG (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.531 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
outside_diameter1.229 INCHES MINIMUM AND 1.239 INCHES MAXIMUM IN
material_thickness0.015 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
internal_keyway_width0.188 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
distance_from_centerline_to_bottom_of_internal_keyway0.359 INCHES NOMINAL IN
NSN5310-00-515-9744
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10-85952-4 · 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: 0.359 INCHES NOMINAL IN
•
INTERNAL KEYWAY WIDTH: 0.188 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.229 INCHES MINIMUM AND 1.239 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.015 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.531 INCHES MINIMUM AND 0.541 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
DISTANCE FROM CENTERLINE TO BOTTOM OF INTERNAL KEYWAY0.359 INCHES NOMINAL IN
INTERNAL KEYWAY WIDTH0.188 INCHES NOMINAL IN
OUTSIDE DIAMETER1.229 INCHES MINIMUM AND 1.239 INCHES MAXIMUM IN
MATERIAL THICKNESS0.015 INCHES MINIMUM AND 0.045 INCHES MAXIMUM IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIALSTEEL OVERALL
HOLE DIAMETER0.531 INCHES MINIMUM AND 0.541 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

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 10-85952-4?
10-85952-4 is a WASHER,KEYWAY.
What is the NSN for 10-85952-4?
10-85952-4 is cataloged in the U.S. Government catalog under NSN 5310-00-515-9744. 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.