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S1610-23058 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

S1610-23058: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include hole_diameter: 5.756 INCHES MINIMUM AND 5.760 INCHES MAXIMUM IN, outside_diameter: 6.187 INCHES MINIMUM AND 6.207 INCHES MAXIMUM IN, style_designator: KEY, surface_treatment: PASSIVATE OVERALL, material_thickness: 0.058 INCHES NOMINAL IN, width_between_flats: 5.625 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-568-5255, 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
S1610-23058
NSN: 5310-00-568-5255
FSC: 5310 — Nuts and Washers
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
hole_diameter5.756 INCHES MINIMUM AND 5.760 INCHES MAXIMUM IN
outside_diameter6.187 INCHES MINIMUM AND 6.207 INCHES MAXIMUM IN
style_designatorKEY
surface_treatmentPASSIVATE OVERALL
material_thickness0.058 INCHES NOMINAL IN
width_between_flats5.625 INCHES NOMINAL IN
external_key_quantity37
external_straight_key_width0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
overall_distance_including_keys6.812 INCHES NOMINAL IN
material_document_and_classificationMIL-S-5059,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-568-5255
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: S1610-23058 · 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
•
OVERALL DISTANCE INCLUDING KEYS: 6.812 INCHES NOMINAL IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5059,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 6.187 INCHES MINIMUM AND 6.207 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.058 INCHES NOMINAL IN
•
WIDTH BETWEEN FLATS: 5.625 INCHES NOMINAL IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 37
TECHNICAL CHARACTERISTICS
OVERALL DISTANCE INCLUDING KEYS6.812 INCHES NOMINAL IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5059,COND A MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER6.187 INCHES MINIMUM AND 6.207 INCHES MAXIMUM IN
MATERIAL THICKNESS0.058 INCHES NOMINAL IN
WIDTH BETWEEN FLATS5.625 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.297 INCHES MINIMUM AND 0.327 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY37
SURFACE TREATMENTPASSIVATE OVERALL
HOLE DIAMETER5.756 INCHES MINIMUM AND 5.760 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: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S1610-23058?
S1610-23058 is a WASHER,KEY.
What is the NSN for S1610-23058?
S1610-23058 is cataloged in the U.S. Government catalog under NSN 5310-00-568-5255. 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.