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8720757 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8720757: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include seal_width: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN, housing_bore_diameter: 1.366 INCHES MINIMUM AND 1.398 INCHES MAXIMUM IN, accommodated_shaft_diameter: 0.990 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-322-2529, 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
8720757
NSN: 5330-00-322-2529
FSC: 5330 — Packing and Gasket Materials
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
seal_width0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
housing_bore_diameter1.366 INCHES MINIMUM AND 1.398 INCHES MAXIMUM IN
accommodated_shaft_diameter0.990 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
NSN5330-00-322-2529
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8720757 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: 0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
•
HOUSING BORE DIAMETER: 1.366 INCHES MINIMUM AND 1.398 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT DIAMETER: 0.990 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.610 INCHES MINIMUM AND 0.640 INCHES MAXIMUM IN
HOUSING BORE DIAMETER1.366 INCHES MINIMUM AND 1.398 INCHES MAXIMUM IN
ACCOMMODATED SHAFT DIAMETER0.990 INCHES MINIMUM AND 1.016 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 1
101-16Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8720757?
8720757 is a SEAL,PLAIN ENCASED.
What parts can replace 8720757?
There is 1 known substitute for 8720757: 101-16. Substitute compatibility should be verified for your specific system.
What is the NSN for 8720757?
8720757 is cataloged in the U.S. Government catalog under NSN 5330-00-322-2529. 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.