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HWZSI9112216-01 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

HWZSI9112216-01: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_diameter: 0.438 INCHES NOMINAL IN, surface_treatment: ZINC OVERALL, peripheral_shape_style: ROUND, specification/standard_data: 05047ASME18.21.1-2009 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD, part_name_assigned_by_controlling_agency: WASHER: HELICAL SPRING-LOCK, TOOTH LOCK, AND PLAIN WASHERS. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-650-4168, 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
HWZSI9112216-01
NSN: 5310-01-650-4168
FSC: 5310 — Nuts and Washers
CAGE: Z4732 — HAULMARK TRAILERS (AUSTRALIA) PTY LTD (AUS)
SPECIFICATIONS
materialSTEEL OVERALL
overall_diameter0.438 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
peripheral_shape_styleROUND
specification/standard_data05047ASME18.21.1-2009 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
part_name_assigned_by_controlling_agencyWASHER: HELICAL SPRING-LOCK, TOOTH LOCK, AND PLAIN WASHERS
surface_treatment_document_and_classificationASTMB633,TYPEIII,SC1ZINCPLATE ASSN STD 1ST TREATMENT RESPONSE OVERALL
NSN5310-01-650-4168
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: HWZSI9112216-01 · 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: ASTMB633,TYPEIII,SC1ZINCPLATE ASSN STD 1ST TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 0.438 INCHES NOMINAL IN
•
SPECIFICATION/STANDARD DATA: 05047ASME18.21.1-2009 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
SURFACE TREATMENT: ZINC OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTMB633,TYPEIII,SC1ZINCPLATE ASSN STD 1ST TREATMENT RESPONSE OVERALL
OVERALL DIAMETER0.438 INCHES NOMINAL IN
SPECIFICATION/STANDARD DATA05047ASME18.21.1-2009 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENTZINC OVERALL
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER: HELICAL SPRING-LOCK, TOOTH LOCK, AND PLAIN WASHERS
MATERIALSTEEL OVERALL
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 HWZSI9112216-01?
HWZSI9112216-01 is a WASHER,FLAT.
What is the NSN for HWZSI9112216-01?
HWZSI9112216-01 is cataloged in the U.S. Government catalog under NSN 5310-01-650-4168. 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.