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R683 — RETAINER,FILTER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

R683: RETAINER,FILTER.

The RETAINER,FILTER is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1213, design_type: SOLID, end_diameter: 0.8960 INCHES MINIMUM AND 0.9060 INCHES MAXIMUM IN, bore_diameter: 0.3910 INCHES NOMINAL IN, overall_height: 0.3860 INCHES NOMINAL IN, features_provided: CASEHARDENED. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-358-3417, 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
R683
NSN: 5340-00-358-3417
NIINs: 003583417, 012506408
FSC: 5340 — Hardware, Commercial
CAGE: 81118 — EATON CORPORATION (USA)
SPECIFICATIONS
materialSTEEL COMP 1213
design_typeSOLID
end_diameter0.8960 INCHES MINIMUM AND 0.9060 INCHES MAXIMUM IN
bore_diameter0.3910 INCHES NOMINAL IN
overall_height0.3860 INCHES NOMINAL IN
features_providedCASEHARDENED
counterbore_length0.2820 INCHES NOMINAL IN
first_step_diameter1.1550 INCHES MINIMUM AND 1.1650 INCHES MAXIMUM IN
counterbore_diameter0.5130 INCHES MINIMUM AND 0.5180 INCHES MAXIMUM IN
countersink_diameter0.9330 INCHES MINIMUM AND 0.9380 INCHES MAXIMUM IN
fsc_application_dataENGINE,GASOLINE,NONAIRCRAFT
end_item_identificationWILLSON SAFETY PRODUCTS MODELS 1200,1500,1600 AND 1700 RESPIRATORS
NSN5340-00-358-3417
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: R683 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
•
COUNTERSINK ANGLE IN DEG: 30.0
•
FSC APPLICATION DATA: ENGINE,GASOLINE,NONAIRCRAFT
•
FIRST STEP DIAMETER: 1.1550 INCHES MINIMUM AND 1.1650 INCHES MAXIMUM IN
•
END DIAMETER: 0.8960 INCHES MINIMUM AND 0.9060 INCHES MAXIMUM IN
•
COUNTERSINK DIAMETER: 0.9330 INCHES MINIMUM AND 0.9380 INCHES MAXIMUM IN
•
DISTANCE FROM END TO FIRST STEP: 0.2920 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.3860 INCHES NOMINAL IN
COUNTERSINK ANGLE IN DEG30.0
FSC APPLICATION DATAENGINE,GASOLINE,NONAIRCRAFT
FIRST STEP DIAMETER1.1550 INCHES MINIMUM AND 1.1650 INCHES MAXIMUM IN
END DIAMETER0.8960 INCHES MINIMUM AND 0.9060 INCHES MAXIMUM IN
COUNTERSINK DIAMETER0.9330 INCHES MINIMUM AND 0.9380 INCHES MAXIMUM IN
DISTANCE FROM END TO FIRST STEP0.2920 INCHES NOMINAL IN
DESIGN TYPESOLID
MATERIAL DOCUMENT AND CLASSIFICATIONAISI B1113 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1113 ASSN STD SINGLE MATERIAL RESPONSE
COUNTERBORE LENGTH0.2820 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
20021AReference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is R683?
R683 is a RETAINER,FILTER.
What parts can replace R683?
There is 1 known substitute for R683: 20021A. Substitute compatibility should be verified for your specific system.
What is the NSN for R683?
R683 is cataloged in the U.S. Government catalog under NSN 5340-00-358-3417. 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.