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91455A110 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

91455A110: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.9 MILLIMETERS MINIMUM AND 1.1 MILLIMETERS MAXIMUM MM, hole_diameter: 5.3 MILLIMETERS NOMINAL MM, hardness_rating: 92.0 ROCKWELL B NOMINAL, overall_diameter: 10.0 MILLIMETERS NOMINAL MM, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-565-8349, 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
91455A110
NSN: 5310-01-565-8349
FSC: 5310 — Nuts and Washers
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.9 MILLIMETERS MINIMUM AND 1.1 MILLIMETERS MAXIMUM MM
hole_diameter5.3 MILLIMETERS NOMINAL MM
hardness_rating92.0 ROCKWELL B NOMINAL
overall_diameter10.0 MILLIMETERS NOMINAL MM
surface_treatmentZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
NSN5310-01-565-8349
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 91455A110 · 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 DIAMETER: 10.0 MILLIMETERS NOMINAL MM
•
HARDNESS RATING: 92.0 ROCKWELL B NOMINAL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: ZINC OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 5.3 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER10.0 MILLIMETERS NOMINAL MM
HARDNESS RATING92.0 ROCKWELL B NOMINAL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTZINC OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER5.3 MILLIMETERS NOMINAL MM
THICKNESS0.9 MILLIMETERS MINIMUM AND 1.1 MILLIMETERS MAXIMUM MM
SUBSTITUTES & CROSS-REFERENCES 1
142591Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 91455A110?
91455A110 is a WASHER,FLAT.
What parts can replace 91455A110?
There is 1 known substitute for 91455A110: 142591. Substitute compatibility should be verified for your specific system.
What is the NSN for 91455A110?
91455A110 is cataloged in the U.S. Government catalog under NSN 5310-01-565-8349. 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.