PartsTable
Technical Data Sheet
0S21784 ✓ Verified by PartsTable
· ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The GASKET is a the manufacturer industrial component. Key specifications include hole_diameter: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 13.125 INCHES NOMINAL IN, overall_length: 36.500 INCHES NOMINAL IN, special_features: THREE BOLT HOLES 0.437 IN. DIA AND TWO BOLT HOLES 0.531 ON.

DIA IN, bolt_hole_quantity: 24, cross-sectional_thickness: 0.054 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-353-9202, 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
0S21784
NSN: 5330-00-353-9202
FSC: 5330
CAGE: 79150 — DANA AUTOMOTIVE SYSTEMS GROUP, LLC DBA DANA SEALING PRODUCTS (USA)
SPECIFICATIONS
hole_diameter0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width13.125 INCHES NOMINAL IN
overall_length36.500 INCHES NOMINAL IN
special_featuresTHREE BOLT HOLES 0.437 IN. DIA AND TWO BOLT HOLES 0.531 ON. DIA IN
bolt_hole_quantity24
cross-sectional_thickness0.054 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN
NSN5330-00-353-9202
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 0S21784 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
HOLE DIAMETER: 0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS: 0.054 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN
BOLT HOLE QUANTITY: 24
TECHNICAL CHARACTERISTICS (FLIS)
HOLE DIAMETER0.406 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
OVERALL LENGTH36.500 INCHES NOMINAL IN
CROSS-SECTIONAL THICKNESS0.054 INCHES MINIMUM AND 0.071 INCHES MAXIMUM IN
SPECIAL FEATURESTHREE BOLT HOLES 0.437 IN. DIA AND TWO BOLT HOLES 0.531 ON. DIA IN
OVERALL WIDTH13.125 INCHES NOMINAL IN
BOLT HOLE QUANTITY24
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
369D005-045AInterchangeable
interchangeable cross-reference
interchangeable
D-188 42Interchangeable
interchangeable cross-reference
interchangeable
NAS907 TYJSZ42Interchangeable
interchangeable cross-reference
interchangeable
70735Interchangeable
interchangeable cross-reference
interchangeable
337929Interchangeable
interchangeable cross-reference
interchangeable
15599366Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0S21784?
0S21784 is a GASKET.
What parts can replace 0S21784?
There are 15 known substitutes for 0S21784: 369D005-045A, D-188 42, NAS907 TYJSZ42 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 0S21784?
0S21784 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-353-9202. This indicates validated use in U.S. government and defense supply chains.
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