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9983940 — SEAL,NONMETALLIC SPECIAL SHAPED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

9983940: SEAL,NONMETALLIC SPECIAL SHAPED.

SEAL,NONMETALLIC SPECIAL SHAPED. Key specifications include material: RUBBER CHLOROPRENE CLASS CR OVERALL, construction: SOLIDSOLID, aperture_width: 9.780 INCHES MINIMUM AND 9.780 INCHES MINIMUM AND 9.820 INCHES MAXIMUM9.820 INCHES MAXIMUM IN, aperture_length: 13.080 INCHES MINIMUM AND 13.080 INCHES MINIMUM AND 13.120 INCHES MAXIMUM13.120 INCHES MAXIMUM IN, style_designator: NON-CIRCULAR, fabrication_method: SOLIDSOLID. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-604-9182, 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
9983940
NSN: 5330-00-604-9182
FSC: 5330 — Packing and Gasket Materials
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
constructionSOLIDSOLID
aperture_width9.780 INCHES MINIMUM AND 9.780 INCHES MINIMUM AND 9.820 INCHES MAXIMUM9.820 INCHES MAXIMUM IN
aperture_length13.080 INCHES MINIMUM AND 13.080 INCHES MINIMUM AND 13.120 INCHES MAXIMUM13.120 INCHES MAXIMUM IN
style_designatorNON-CIRCULAR
fabrication_methodSOLIDSOLID
cross-sectional_width0.797 INCHES MINIMUM AND 0.797 INCHES MINIMUM AND 0.828 INCHES MAXIMUM0.828 INCHES MAXIMUM IN
cross-sectional_height0.375 INCHES MINIMUM AND 0.375 INCHES MINIMUM AND 0.406 INCHES MAXIMUM0.406 INCHES MAXIMUM IN
cross-sectional_thickness0.078 INCHES MINIMUM AND 0.078 INCHES MINIMUM AND 0.109 INCHES MAXIMUM0.109 INCHES MAXIMUM IN
cross-sectional_shape_styleSPECIALSPECIAL
cross_section_inside_diameter0.250 INCHES MINIMUM AND 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM0.281 INCHES MAXIMUM IN
material_document_and_classification417,GR SC515ABF3 MIL STD SINGLE MATERIAL RESPONSE OVERALL
NSN5330-00-604-9182
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 9983940 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: 0.078 INCHES MINIMUM AND 0.078 INCHES MINIMUM AND 0.109 INCHES MAXIMUM0.109 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.375 INCHES MINIMUM AND 0.375 INCHES MINIMUM AND 0.406 INCHES MAXIMUM0.406 INCHES MAXIMUM IN
•
CROSS-SECTIONAL WIDTH: 0.797 INCHES MINIMUM AND 0.797 INCHES MINIMUM AND 0.828 INCHES MAXIMUM0.828 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: NON-CIRCULAR
•
MATERIAL DOCUMENT AND CLASSIFICATION: 417,GR SC515ABF3 MIL STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SPECIALSPECIAL
•
APERTURE WIDTH: 9.780 INCHES MINIMUM AND 9.780 INCHES MINIMUM AND 9.820 INCHES MAXIMUM9.820 INCHES MAXIMUM IN
•
CROSS SECTION INSIDE DIAMETER: 0.250 INCHES MINIMUM AND 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM0.281 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.078 INCHES MINIMUM AND 0.078 INCHES MINIMUM AND 0.109 INCHES MAXIMUM0.109 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.375 INCHES MINIMUM AND 0.375 INCHES MINIMUM AND 0.406 INCHES MAXIMUM0.406 INCHES MAXIMUM IN
CROSS-SECTIONAL WIDTH0.797 INCHES MINIMUM AND 0.797 INCHES MINIMUM AND 0.828 INCHES MAXIMUM0.828 INCHES MAXIMUM IN
STYLE DESIGNATORNON-CIRCULAR
MATERIAL DOCUMENT AND CLASSIFICATION417,GR SC515ABF3 MIL STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESPECIALSPECIAL
APERTURE WIDTH9.780 INCHES MINIMUM AND 9.780 INCHES MINIMUM AND 9.820 INCHES MAXIMUM9.820 INCHES MAXIMUM IN
CROSS SECTION INSIDE DIAMETER0.250 INCHES MINIMUM AND 0.250 INCHES MINIMUM AND 0.281 INCHES MAXIMUM0.281 INCHES MAXIMUM IN
APERTURE LENGTH13.080 INCHES MINIMUM AND 13.080 INCHES MINIMUM AND 13.120 INCHES MAXIMUM13.120 INCHES MAXIMUM IN
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 9983940?
9983940 is a SEAL,NONMETALLIC SPECIAL SHAPED.
What is the NSN for 9983940?
9983940 is cataloged in the U.S. Government catalog under NSN 5330-00-604-9182. 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.