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2124800-8 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2124800-8: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thickness: 0.0598 INCHES NOMINAL IN, hole_diameter: 0.404 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN, surface_finish: 125.0 MICROINCHES TOP, hardness_rating: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM, overall_diameter: 0.587 INCHES MINIMUM AND 0.592 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-108-1803, 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
2124800-8
NSN: 5310-01-108-1803
FSC: 5310 — Nuts and Washers
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
materialSTEEL OVERALL
thickness0.0598 INCHES NOMINAL IN
hole_diameter0.404 INCHES MINIMUM AND 0.414 INCHES MAXIMUM IN
surface_finish125.0 MICROINCHES TOP
hardness_rating36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
overall_diameter0.587 INCHES MINIMUM AND 0.592 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-S-17919 MIL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5310-01-108-1803
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2124800-8 · 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 FINISH: 125.0 MICROINCHES BOTTOM
•
OVERALL DIAMETER: 0.587 INCHES MINIMUM AND 0.592 INCHES MAXIMUM IN
•
HARDNESS RATING: 36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-17919 MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISH125.0 MICROINCHES BOTTOM
SURFACE FINISH125.0 MICROINCHES TOP
OVERALL DIAMETER0.587 INCHES MINIMUM AND 0.592 INCHES MAXIMUM IN
HARDNESS RATING36.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-17919 MIL SPEC ALL MATERIAL RESPONSES OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.404 INCHES MINIMUM AND 0.414 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 1
3371692E0155-08Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
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 2124800-8?
2124800-8 is a WASHER,FLAT.
What parts can replace 2124800-8?
There is 1 known substitute for 2124800-8: 3371692E0155-08. Substitute compatibility should be verified for your specific system.
What is the NSN for 2124800-8?
2124800-8 is cataloged in the U.S. Government catalog under NSN 5310-01-108-1803. 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.