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285392-0001 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

285392-0001: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include length: 2.500 INCHES NOMINAL IN, material: STEEL OVERALL, thickness: 0.375 INCHES NOMINAL IN, hole_diameter: 0.790 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN, special_features: COLOR OF PAINT FINISH IS GRAY NO. 26555 FED.STD 595, surface_treatment: PAINT OVERALL.

This part is cataloged in the U.S. Government catalog under NSN 5310-00-137-6543, 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
285392-0001
NSN: 5310-00-137-6543
FSC: 5310 — Nuts and Washers
CAGE: 65597 — THALES USA, INC. DIV AIR MOBILITY SOLUTIONS ("AMS") (USA)
SPECIFICATIONS
length2.500 INCHES NOMINAL IN
materialSTEEL OVERALL
thickness0.375 INCHES NOMINAL IN
hole_diameter0.790 INCHES MINIMUM AND 0.830 INCHES MAXIMUM IN
special_featuresCOLOR OF PAINT FINISH IS GRAY NO. 26555 FED.STD 595
surface_treatmentPAINT OVERALL
width_across_flats2.000 INCHES NOMINAL IN
peripheral_shape_styleRECTANGULAR
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-S-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-137-6543
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 285392-0001 · 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
•
WIDTH ACROSS FLATS: 2.000 INCHES NOMINAL IN
•
LENGTH: 2.500 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SURFACE TREATMENT: PAINT OVERALL
•
PERIPHERAL SHAPE STYLE: RECTANGULAR
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS2.000 INCHES NOMINAL IN
LENGTH2.500 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-626 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIAL FEATURESCOLOR OF PAINT FINISH IS GRAY NO. 26555 FED.STD 595
SURFACE TREATMENTPAINT OVERALL
PERIPHERAL SHAPE STYLERECTANGULAR
MATERIALSTEEL OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.790 INCHES MINIMUM AND 0.830 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 285392-0001?
285392-0001 is a WASHER,FLAT.
What is the NSN for 285392-0001?
285392-0001 is cataloged in the U.S. Government catalog under NSN 5310-00-137-6543. 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.