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SS5103C05 — WASHER,RECESSED

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

SS5103C05: WASHER,RECESSED.

The WASHER,RECESSED is a the manufacturer industrial component. Key specifications include recess_angle: 45.0 DEGREES NOMINAL, hole_diameter: 0.315 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN, recess_diameter: 0.396 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN, outside_diameter: 0.593 INCHES NOMINAL IN, style_designator: RECESSED, material_thickness: 0.080 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-105-1871, 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
SS5103C05
NSN: 5310-01-105-1871
FSC: 5310 — Nuts and Washers
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
recess_angle45.0 DEGREES NOMINAL
hole_diameter0.315 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
recess_diameter0.396 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
outside_diameter0.593 INCHES NOMINAL IN
style_designatorRECESSED
material_thickness0.080 INCHES NOMINAL IN
NSN5310-01-105-1871
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: SS5103C05 · 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
•
STYLE DESIGNATOR: RECESSED
•
OUTSIDE DIAMETER: 0.593 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.080 INCHES NOMINAL IN
•
RECESS DIAMETER: 0.396 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
•
HOLE DIAMETER: 0.315 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
•
RECESS ANGLE: 45.0 DEGREES NOMINAL
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORRECESSED
OUTSIDE DIAMETER0.593 INCHES NOMINAL IN
MATERIAL THICKNESS0.080 INCHES NOMINAL IN
RECESS DIAMETER0.396 INCHES MINIMUM AND 0.406 INCHES MAXIMUM IN
HOLE DIAMETER0.315 INCHES MINIMUM AND 0.324 INCHES MAXIMUM IN
RECESS ANGLE45.0 DEGREES NOMINAL
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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is SS5103C05?
SS5103C05 is a WASHER,RECESSED.
What is the NSN for SS5103C05?
SS5103C05 is cataloged in the U.S. Government catalog under NSN 5310-01-105-1871. 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.