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S9566 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

S9566: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, recess_depth: 0.012 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN, hole_diameter: 0.510 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN, overall_height: 0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN, hardness_rating: 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM, outside_diameter: 1.120 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-403-7031, 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
S9566
NSN: 5310-00-403-7031
FSC: 5310 — Nuts and Washers
CAGE: 12511 — SIMMONDS PRECISION PRODUCTS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
recess_depth0.012 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN
hole_diameter0.510 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
overall_height0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
hardness_rating38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
outside_diameter1.120 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
style_designatorRECESSED
material_thickness0.060 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
material_document_and_classificationAMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-403-7031
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S9566 · 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
•
HARDNESS RATING: 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
•
STYLE DESIGNATOR: RECESSED
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.120 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
•
RECESS DEPTH: 0.012 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.060 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.055 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
HARDNESS RATING38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM
STYLE DESIGNATORRECESSED
MATERIAL DOCUMENT AND CLASSIFICATIONAMS5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.120 INCHES MINIMUM AND 1.125 INCHES MAXIMUM IN
RECESS DEPTH0.012 INCHES MINIMUM AND 0.015 INCHES MAXIMUM IN
MATERIAL THICKNESS0.060 INCHES MINIMUM AND 0.063 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
HOLE DIAMETER0.510 INCHES MINIMUM AND 0.515 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 S9566?
S9566 is a WASHER,RECESSED.
What is the NSN for S9566?
S9566 is cataloged in the U.S. Government catalog under NSN 5310-00-403-7031. 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.