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V3531PC18 — WASHER,SPRING TENSION

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

V3531PC18: WASHER,SPRING TENSION.

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, hole_diameter: 0.531 INCHES NOMINAL IN, overall_height: 0.156 INCHES NOMINAL IN, outside_diameter: 0.688 INCHES NOMINAL IN, material_thickness: 0.031 INCHES NOMINAL IN, part_name_assigned_by_controlling_agency: NAVY SPECIAL PROJECT. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-593-8929, 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
V3531PC18
NSN: 5310-00-593-8929
FSC: 5310 — Nuts and Washers
CAGE: 03670 — TYCO FIRE PRODUCTS LP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
hole_diameter0.531 INCHES NOMINAL IN
overall_height0.156 INCHES NOMINAL IN
outside_diameter0.688 INCHES NOMINAL IN
material_thickness0.031 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-00-593-8929
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: V3531PC18 · 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
•
OUTSIDE DIAMETER: 0.688 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.031 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
HOLE DIAMETER: 0.531 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.156 INCHES NOMINAL IN
OUTSIDE DIAMETER0.688 INCHES NOMINAL IN
MATERIAL THICKNESS0.031 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
MATERIALSTEEL OVERALL
HOLE DIAMETER0.531 INCHES NOMINAL 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 2
V3057Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
V5561PC19Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 V3531PC18?
V3531PC18 is a WASHER,SPRING TENSION.
What parts can replace V3531PC18?
There are 2 known substitutes for V3531PC18: V3057, V5561PC19. Substitute compatibility should be verified for your specific system.
What is the NSN for V3531PC18?
V3531PC18 is cataloged in the U.S. Government catalog under NSN 5310-00-593-8929. 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.