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A27730 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

A27730: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include seal_width: 1.438 INCHES NOMINAL IN, housing_bore_diameter: 4.753 INCHES MINIMUM AND 4.759 INCHES MAXIMUM IN, accommodated_shaft_diameter: 3.015 INCHES MINIMUM AND 3.047 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-679-3737, 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
A27730
NSN: 5330-00-679-3737
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
seal_width1.438 INCHES NOMINAL IN
housing_bore_diameter4.753 INCHES MINIMUM AND 4.759 INCHES MAXIMUM IN
accommodated_shaft_diameter3.015 INCHES MINIMUM AND 3.047 INCHES MAXIMUM IN
NSN5330-00-679-3737
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: A27730 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
•
SEAL WIDTH: 1.438 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 4.753 INCHES MINIMUM AND 4.759 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT DIAMETER: 3.015 INCHES MINIMUM AND 3.047 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SEAL WIDTH1.438 INCHES NOMINAL IN
HOUSING BORE DIAMETER4.753 INCHES MINIMUM AND 4.759 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER3.015 INCHES MINIMUM AND 3.047 INCHES MAXIMUM IN
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
80-7806Reference document
Same NSN cross-reference
Reference document — Secondary reference
100018-61Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is A27730?
A27730 is a SEAL,PLAIN ENCASED.
What parts can replace A27730?
There are 2 known substitutes for A27730: 80-7806, 100018-61. Substitute compatibility should be verified for your specific system.
What is the NSN for A27730?
A27730 is cataloged in the U.S. Government catalog under NSN 5330-00-679-3737. 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.