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10078540 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

10078540: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include peripheral_diameter: 88.8 MILLIMETERS NOMINAL MM, center_hole_diameter: 79.0 MILLIMETERS NOMINAL MM, cross-sectional_thickness: 0.85 MILLIMETERS NOMINAL MM, cross-sectional_shape_style: SQUARE. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-218-4933, 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
10078540
NSN: 5330-01-218-4933
FSC: 5330 — Packing and Gasket Materials
CAGE: A486G — NIMIKKEISTOKESKUS NCB FINLAND (FIN)
SPECIFICATIONS
peripheral_diameter88.8 MILLIMETERS NOMINAL MM
center_hole_diameter79.0 MILLIMETERS NOMINAL MM
cross-sectional_thickness0.85 MILLIMETERS NOMINAL MM
cross-sectional_shape_styleSQUARE
NSN5330-01-218-4933
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 10078540 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: 0.85 MILLIMETERS NOMINAL MM
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE
•
PERIPHERAL DIAMETER: 88.8 MILLIMETERS NOMINAL MM
•
CENTER HOLE DIAMETER: 79.0 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL THICKNESS0.85 MILLIMETERS NOMINAL MM
CROSS-SECTIONAL SHAPE STYLESQUARE
PERIPHERAL DIAMETER88.8 MILLIMETERS NOMINAL MM
CENTER HOLE DIAMETER79.0 MILLIMETERS NOMINAL MM
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 2
RE0022358Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
S52028-338Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10078540?
10078540 is a RETAINER,PACKING.
What parts can replace 10078540?
There are 2 known substitutes for 10078540: RE0022358, S52028-338. Substitute compatibility should be verified for your specific system.
What is the NSN for 10078540?
10078540 is cataloged in the U.S. Government catalog under NSN 5330-01-218-4933. 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.