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Technical Data Sheet
PartsTable / COMPONENT / 5486661 ITEM 12
5486661 ITEM 12 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,SPRING TENSION is a the manufacturer industrial component. Key specifications include material: STEEL COMP 304 OVERALL, hole_diameter: 0.317 INCHES MINIMUM AND 0.317 INCHES MINIMUM AND 0.327 INCHES MAXIMUM0.327 INCHES MAXIMUM IN, overall_height: 0.048 INCHES NOMINAL0.048 INCHES NOMINAL IN, outside_diameter: 0.635 INCHES MAXIMUM0.635 INCHES MAXIMUM IN, style_designator: SPRING TENSION, material_thickness: 0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-056-1388, 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
5486661 ITEM 12
NSN: 5310-01-056-1388
FSC: 5310
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 304 OVERALL
hole_diameter0.317 INCHES MINIMUM AND 0.317 INCHES MINIMUM AND 0.327 INCHES MAXIMUM0.327 INCHES MAXIMUM IN
overall_height0.048 INCHES NOMINAL0.048 INCHES NOMINAL IN
outside_diameter0.635 INCHES MAXIMUM0.635 INCHES MAXIMUM IN
style_designatorSPRING TENSION
material_thickness0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
specification/standard_data18876-11571772 GOVERNMENT SPECIFICATION
material_document_and_classificationQQ-S-766 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-056-1388
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 5486661 ITEM 12 · 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
•
SPECIFICATION/STANDARD DATA: 18876-11571772 GOVERNMENT SPECIFICATION
•
OUTSIDE DIAMETER: 0.635 INCHES MAXIMUM0.635 INCHES MAXIMUM IN
•
MATERIAL: STEEL COMP 304 OVERALL
•
MATERIAL THICKNESS: 0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
•
HOLE DIAMETER: 0.317 INCHES MINIMUM AND 0.317 INCHES MINIMUM AND 0.327 INCHES MAXIMUM0.327 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SPRING TENSION
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-766 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
SPECIFICATION/STANDARD DATA18876-11571772 GOVERNMENT SPECIFICATION
OUTSIDE DIAMETER0.635 INCHES MAXIMUM0.635 INCHES MAXIMUM IN
MATERIALSTEEL COMP 304 OVERALL
MATERIAL THICKNESS0.032 INCHES NOMINAL0.032 INCHES NOMINAL IN
OVERALL HEIGHT0.048 INCHES NOMINAL0.048 INCHES NOMINAL IN
HOLE DIAMETER0.317 INCHES MINIMUM AND 0.317 INCHES MINIMUM AND 0.327 INCHES MAXIMUM0.327 INCHES MAXIMUM IN
STYLE DESIGNATORSPRING TENSION
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-766 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
33154Interchangeable
interchangeable cross-reference
interchangeable
9060Interchangeable
interchangeable cross-reference
interchangeable
50012Interchangeable
interchangeable cross-reference
interchangeable
420-0158-002Interchangeable
interchangeable cross-reference
interchangeable
156-DCInterchangeable
interchangeable cross-reference
interchangeable
9354233Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 5486661 ITEM 12?
5486661 ITEM 12 is a WASHER,SPRING TENSION.
What parts can replace 5486661 ITEM 12?
There are 16 known substitutes for 5486661 ITEM 12: 33154, 9060, 50012 and 13 more. Substitute compatibility should be verified for your specific system.
Is 5486661 ITEM 12 still available?
5486661 ITEM 12 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026