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2550W24178 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

2550W24178: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include width: 0.86 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING OVERALL, thickness: 0.056 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN, hole_diameter: 0.281 INCHES NOMINAL IN, hardness_rating: 68.0 ROCKWELL B NOMINAL, outside_diameter: 1.00 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-702-9887, 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
2550W24178
NSN: 5310-01-702-9887
FSC: 5310 — Nuts and Washers
CAGE: 1L160 — SUPERIOR WASHER & GASKET CORP. DBA SUPERIOR WASHER & GASKET CORP (USA)
SPECIFICATIONS
width0.86 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING OVERALL
thickness0.056 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN
hole_diameter0.281 INCHES NOMINAL IN
hardness_rating68.0 ROCKWELL B NOMINAL
outside_diameter1.00 INCHES NOMINAL IN
overall_diameter1.00 INCHES NOMINAL IN
special_featuresMATERIAL: 18-8 STAINLESS STEEL. PACK OF 5. ROHS COMPLIANT.
peripheral_shape_styleDEE
center_hole_shape_styleROUND
cross-sectional_shape_styleBLANK RECTANGULAR
part_name_assigned_by_controlling_agencyOVERSIZED CLIPPED WASHER FOR 1/4 INCH SCREW IN
NSN5310-01-702-9887
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 2550W24178 · 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: 1.00 INCHES NOMINAL IN
•
HARDNESS RATING: 68.0 ROCKWELL B NOMINAL
•
CROSS-SECTIONAL SHAPE STYLE: BLANK RECTANGULAR
•
OUTSIDE DIAMETER: 1.00 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: DEE
•
WIDTH: 0.86 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER1.00 INCHES NOMINAL IN
HARDNESS RATING68.0 ROCKWELL B NOMINAL
CROSS-SECTIONAL SHAPE STYLEBLANK RECTANGULAR
OUTSIDE DIAMETER1.00 INCHES NOMINAL IN
SPECIAL FEATURESMATERIAL: 18-8 STAINLESS STEEL. PACK OF 5. ROHS COMPLIANT.
PERIPHERAL SHAPE STYLEDEE
WIDTH0.86 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYOVERSIZED CLIPPED WASHER FOR 1/4 INCH SCREW IN
MATERIALSTEEL CORROSION RESISTING OVERALL
CENTER HOLE SHAPE STYLEROUND
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
93409A113Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 2550W24178?
2550W24178 is a WASHER,FLAT.
What parts can replace 2550W24178?
There is 1 known substitute for 2550W24178: 93409A113. Substitute compatibility should be verified for your specific system.
What is the NSN for 2550W24178?
2550W24178 is cataloged in the U.S. Government catalog under NSN 5310-01-702-9887. 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.