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S30989-451 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

S30989-451: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, peripheral_diameter: 11.468 INCHES MINIMUM AND 11.480 INCHES MAXIMUM IN, center_hole_diameter: 10.998 INCHES MINIMUM AND 11.006 INCHES MAXIMUM IN, cross-sectional_height: 0.106 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN, cross-sectional_shape_style: SQUARE/RECTANGULAR, material_document_and_classification: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-121-2778, 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
S30989-451
NSN: 5330-01-121-2778
FSC: 5330 — Packing and Gasket Materials
CAGE: 09257 — TRELLEBORG SEALING SOLUTIONS US, INC. (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
peripheral_diameter11.468 INCHES MINIMUM AND 11.480 INCHES MAXIMUM IN
center_hole_diameter10.998 INCHES MINIMUM AND 11.006 INCHES MAXIMUM IN
cross-sectional_height0.106 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
material_document_and_classificationMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-121-2778
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: S30989-451 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 HEIGHT: 0.106 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
PERIPHERAL DIAMETER: 11.468 INCHES MINIMUM AND 11.480 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 10.998 INCHES MINIMUM AND 11.006 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.106 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
PERIPHERAL DIAMETER11.468 INCHES MINIMUM AND 11.480 INCHES MAXIMUM IN
CENTER HOLE DIAMETER10.998 INCHES MINIMUM AND 11.006 INCHES MAXIMUM IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
981033Reference document
Same NSN cross-reference
Reference document — Secondary reference
SC1300-451Reference document
Same NSN cross-reference
Reference document — Secondary reference
MS27595-451Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
MS27595Reference document
Same NSN cross-reference
Reference document — Identification reference
153129Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is S30989-451?
S30989-451 is a RETAINER,PACKING.
What parts can replace S30989-451?
There are 5 known substitutes for S30989-451: 981033, SC1300-451, MS27595-451 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for S30989-451?
S30989-451 is cataloged in the U.S. Government catalog under NSN 5330-01-121-2778. This indicates validated use in U.S. government and defense supply chains.
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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.