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18510A — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

18510A: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: STEEL CASE, case_style: SQUARE, seal_width: 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN, surface_treatment: CADMIUM CASE, fsc_application_data: TRANSMISSION,VEHICULAR, housing_bore_diameter: 1.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-678-1767, 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
18510A
NSN: 5330-00-678-1767
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialSTEEL CASE
case_styleSQUARE
seal_width0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
surface_treatmentCADMIUM CASE
fsc_application_dataTRANSMISSION,VEHICULAR
housing_bore_diameter1.500 INCHES NOMINAL IN
sealing_element_styleANGULAR
accommodated_shaft_diameter1.000 INCHES NOMINAL IN
NSN5330-00-678-1767
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 18510A 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
•
FSC APPLICATION DATA: TRANSMISSION,VEHICULAR
•
SEAL WIDTH: 0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
HOUSING BORE DIAMETER: 1.500 INCHES NOMINAL IN
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 1.000 INCHES NOMINAL IN
•
SURFACE TREATMENT: CADMIUM CASE
•
MATERIAL: STEEL CASE
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATATRANSMISSION,VEHICULAR
SEAL WIDTH0.297 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
HOUSING BORE DIAMETER1.500 INCHES NOMINAL IN
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER1.000 INCHES NOMINAL IN
SURFACE TREATMENTCADMIUM CASE
MATERIALSTEEL CASE
MATERIALRUBBER SYNTHETIC SEALING ELEMENT
SUBSTITUTES & CROSS-REFERENCES 3
5330006781767Reference document
Same NSN cross-reference
Reference document — Secondary reference
512558Reference document
Same NSN cross-reference
Reference document — Secondary reference
7996803Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 18510A?
18510A is a SEAL,PLAIN ENCASED.
What parts can replace 18510A?
There are 3 known substitutes for 18510A: 5330006781767, 512558, 7996803. Substitute compatibility should be verified for your specific system.
What is the NSN for 18510A?
18510A is cataloged in the U.S. Government catalog under NSN 5330-00-678-1767. 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.