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R9-003.12.2.2 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

R9-003.12.2.2: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, thickness: 0.063 INCHES NOMINAL IN, hole_diameter: 0.265 INCHES NOMINAL IN, overall_diameter: 0.500 INCHES NOMINAL IN, peripheral_shape_style: ROUND, end_item_identification: AIRPORT SURVEILLANCE RADAR 9. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-598-5201, 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
R9-003.12.2.2
NSN: 5310-01-598-5201
FSC: 5310 — Nuts and Washers
CAGE: 2M331 — DEPARTMENT OF TRANSPORTATION FEDERAL AVIATION ADMINISTRATION TECHNICAL CENTER (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
thickness0.063 INCHES NOMINAL IN
hole_diameter0.265 INCHES NOMINAL IN
overall_diameter0.500 INCHES NOMINAL IN
peripheral_shape_styleROUND
end_item_identificationAIRPORT SURVEILLANCE RADAR 9
part_name_assigned_by_controlling_agencyWASHER,FLAT
NSN5310-01-598-5201
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: R9-003.12.2.2 · 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: 0.500 INCHES NOMINAL IN
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: STEEL COMP 316 OVERALL
•
HOLE DIAMETER: 0.265 INCHES NOMINAL IN
•
THICKNESS: 0.063 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.500 INCHES NOMINAL IN
PERIPHERAL SHAPE STYLEROUND
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER,FLAT
END ITEM IDENTIFICATIONAIRPORT SURVEILLANCE RADAR 9
MATERIALSTEEL COMP 316 OVERALL
HOLE DIAMETER0.265 INCHES NOMINAL IN
THICKNESS0.063 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 2
WSF025X0500316Reference document
Same NSN cross-reference
Reference document — Secondary reference
WSF265X500X0625316Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R9-003.12.2.2?
R9-003.12.2.2 is a WASHER,FLAT.
What parts can replace R9-003.12.2.2?
There are 2 known substitutes for R9-003.12.2.2: WSF025X0500316, WSF265X500X0625316. Substitute compatibility should be verified for your specific system.
What is the NSN for R9-003.12.2.2?
R9-003.12.2.2 is cataloged in the U.S. Government catalog under NSN 5310-01-598-5201. 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.