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2124800 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2124800: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1070 OR STEEL COMP 1065 OR STEEL COMP 1074 OR STEEL COMP 1085 OR STEEL COMP 1095 OVERALL, thickness: 0.024 INCHES NOMINAL IN, hole_diameter: 0.109 INCHES NOMINAL IN, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM, overall_diameter: 0.170 INCHES NOMINAL IN, surface_treatment: ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-475-1160, 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
2124800
NSN: 5310-01-475-1160
FSC: 5310 — Nuts and Washers
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL COMP 1070 OR STEEL COMP 1065 OR STEEL COMP 1074 OR STEEL COMP 1085 OR STEEL COMP 1095 OVERALL
thickness0.024 INCHES NOMINAL IN
hole_diameter0.109 INCHES NOMINAL IN
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
overall_diameter0.170 INCHES NOMINAL IN
surface_treatmentZINC OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
surface_treatment_document_and_classificationASTM B633-78,TYPE II,CLASS FE/ZN13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
NSN5310-01-475-1160
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2124800 · 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: ASTM B633-78,TYPE II,CLASS FE/ZN13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 0.170 INCHES NOMINAL IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: ZINC OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 1070 OR STEEL COMP 1065 OR STEEL COMP 1074 OR STEEL COMP 1085 OR STEEL COMP 1095 OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONASTM B633-78,TYPE II,CLASS FE/ZN13 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER0.170 INCHES NOMINAL IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SURFACE TREATMENTZINC OVERALL
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL COMP 1070 OR STEEL COMP 1065 OR STEEL COMP 1074 OR STEEL COMP 1085 OR STEEL COMP 1095 OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.109 INCHES NOMINAL IN
THICKNESS0.024 INCHES NOMINAL 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 1
2124800-0001Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 2124800?
2124800 is a WASHER,FLAT.
What parts can replace 2124800?
There is 1 known substitute for 2124800: 2124800-0001. Substitute compatibility should be verified for your specific system.
What is the NSN for 2124800?
2124800 is cataloged in the U.S. Government catalog under NSN 5310-01-475-1160. 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.