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FS90-0802909 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

FS90-0802909: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OVERALL, thickness: 0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN, hole_diameter: 0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN, overall_diameter: 0.433 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN, special_features: THE ITEM IS A FLIGHT SAFETY CRITICAL AIRCRAFT PART (FSCAP)., surface_treatment: PASSIVATE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-352-9573, 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
FS90-0802909
NSN: 5310-01-352-9573
FSC: 5310 — Nuts and Washers
CAGE: K2429 — AMSAFE BRIDPORT LTD (GBR)
SPECIFICATIONS
materialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OVERALL
thickness0.014 INCHES MINIMUM AND 0.018 INCHES MAXIMUM IN
hole_diameter0.193 INCHES MINIMUM AND 0.213 INCHES MAXIMUM IN
overall_diameter0.433 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN
special_featuresTHE ITEM IS A FLIGHT SAFETY CRITICAL AIRCRAFT PART (FSCAP).
surface_treatmentPASSIVATE OVERALL
peripheral_shape_styleROUND
center_hole_shape_styleROUND
end_item_identificationMRAP - COUGAR; ARMORED MULTI-PURPOSE VEHICLE (AMPV)
cross-sectional_shape_styleRECTANGULAR
specification/standard_data80205-NAS1149 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
criticality_code_justificationFEAT
NSN5310-01-352-9573
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: FS90-0802909 · 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: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
OVERALL DIAMETER: 0.433 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN
•
CRITICALITY CODE JUSTIFICATION: FEAT
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
SPECIFICATION/STANDARD DATA: 80205-NAS1149 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
OVERALL DIAMETER0.433 INCHES MINIMUM AND 0.458 INCHES MAXIMUM IN
CRITICALITY CODE JUSTIFICATIONFEAT
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
SPECIFICATION/STANDARD DATA80205-NAS1149 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SPECIAL FEATURESTHE ITEM IS A FLIGHT SAFETY CRITICAL AIRCRAFT PART (FSCAP).
SURFACE TREATMENTPASSIVATE OVERALL
PERIPHERAL SHAPE STYLEROUND
END ITEM IDENTIFICATIONMRAP - COUGAR; ARMORED MULTI-PURPOSE VEHICLE (AMPV)
MATERIALSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 304 OR STEEL COMP 316 OR STEEL COMP 321 OR STEEL COMP 347 OVERALL
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 3
NAS1149C0316RReference document
Same NSN cross-reference
Reference document — Secondary reference
5310PL0940491Reference document
Same NSN cross-reference
Reference document — Informative reference only
10122234Reference document
Same NSN cross-reference
Reference document — Informative reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is FS90-0802909?
FS90-0802909 is a WASHER,FLAT.
What parts can replace FS90-0802909?
There are 3 known substitutes for FS90-0802909: NAS1149C0316R, 5310PL0940491, 10122234. Substitute compatibility should be verified for your specific system.
What is the NSN for FS90-0802909?
FS90-0802909 is cataloged in the U.S. Government catalog under NSN 5310-01-352-9573. 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.