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WA-53 — WASHER,FLAT

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

WA-53: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM OVERALL, outside_diameter: 1.042 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN, style_designator: CIRCULAR, aperture_diameter: 3.730 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN, cross-sectional_thickness: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN, cross-sectional_shape_style: SOLID SINGLE OR COMPOSITION. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-338-5280, 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
WA-53
NSN: 5330-00-338-5280
NIINs: 003385280, 013776447, 014388427
FSC: 5330 — Packing and Gasket Materials
CAGE: 833H8 — FLYWHEEL SUPPLY LLC (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM OVERALL
outside_diameter1.042 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN
style_designatorCIRCULAR
aperture_diameter3.730 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN
cross-sectional_thickness0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
criticality_code_justificationZZZY
reference_number_differentiating_characteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
NSN5330-00-338-5280
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: WA-53 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
CROSS-SECTIONAL THICKNESS: 0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: CIRCULAR
•
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
•
OUTSIDE DIAMETER: 1.042 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN
•
APERTURE DIAMETER: 3.730 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN
•
MATERIAL: RUBBER FLUOROCARBON CLASS FPM OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.360 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
STYLE DESIGNATORCIRCULAR
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OUTSIDE DIAMETER1.042 INCHES MINIMUM AND 1.062 INCHES MAXIMUM IN
APERTURE DIAMETER3.730 INCHES MINIMUM AND 3.750 INCHES MAXIMUM IN
MATERIALRUBBER FLUOROCARBON CLASS FPM OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
54-A/PC13Reference document
Same NSN cross-reference
Reference document — Secondary reference
54-A DET. 13Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
CAT 82 PG.10 PC.13Reference document
Same NSN cross-reference
Reference document — Secondary reference
WA53AReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
22NReference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is WA-53?
WA-53 is a WASHER,FLAT.
What parts can replace WA-53?
There are 5 known substitutes for WA-53: 54-A/PC13, 54-A DET. 13, CAT 82 PG.10 PC.13 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for WA-53?
WA-53 is cataloged in the U.S. Government catalog under NSN 5330-00-338-5280. This indicates validated use in U.S. government and defense supply chains.
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