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HS1555 — WASHER,CONVEX

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

HS1555: WASHER,CONVEX.

The WASHER,CONVEX is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1020 OR STEEL COMP 1018 OR STEEL COMP 1215 OVERALL, hole_diameter: 0.202 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN, heat_treatment: AS FABRICATED, outside_diameter: 0.561 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN, style_designator: CONVEX, surface_treatment: CADMIUM OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-151-8770, 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
HS1555
NSN: 5310-00-151-8770
FSC: 5310 — Nuts and Washers
CAGE: 8V613 — THE BOEING COMPANY (USA)
SPECIFICATIONS
materialSTEEL COMP 1020 OR STEEL COMP 1018 OR STEEL COMP 1215 OVERALL
hole_diameter0.202 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
heat_treatmentAS FABRICATED
outside_diameter0.561 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
style_designatorCONVEX
surface_treatmentCADMIUM OVERALL
material_thickness0.090 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
material_document_and_classificationQQ-S-634 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-633-CANCELED FED SPEC 2ND MATERIAL RESPONSE AND QQ-S-637 FED SPEC 3RD MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5310-00-151-8770
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: HS1555 · 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
HEAT TREATMENT: AS FABRICATED
•
STYLE DESIGNATOR: CONVEX
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-634 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-633-CANCELED FED SPEC 2ND MATERIAL RESPONSE AND QQ-S-637 FED SPEC 3RD MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 0.561 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.090 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
•
SURFACE TREATMENT: CADMIUM OVERALL
•
MATERIAL: STEEL COMP 1020 OR STEEL COMP 1018 OR STEEL COMP 1215 OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
HEAT TREATMENTAS FABRICATED
STYLE DESIGNATORCONVEX
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-634 FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-633-CANCELED FED SPEC 2ND MATERIAL RESPONSE AND QQ-S-637 FED SPEC 3RD MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER0.561 INCHES MINIMUM AND 0.563 INCHES MAXIMUM IN
MATERIAL THICKNESS0.090 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OVERALL
MATERIALSTEEL COMP 1020 OR STEEL COMP 1018 OR STEEL COMP 1215 OVERALL
HOLE DIAMETER0.202 INCHES MINIMUM AND 0.208 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
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HS1555?
HS1555 is a WASHER,CONVEX.
What is the NSN for HS1555?
HS1555 is cataloged in the U.S. Government catalog under NSN 5310-00-151-8770. 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.