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514840 — SEAL,PLAIN ENCASED

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

514840: SEAL,PLAIN ENCASED.

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 5083 CASE, case_style: RECESSED, seal_width: 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, temp_rating: 250.0 FAHRENHEIT DEGF, outside_diameter: 4.506 INCHES NOMINAL IN, special_features: SURFACE TREATMENT IS CARCINOGEN. This part is cataloged in the U.S.

Government catalog under NSN 5330-00-438-9022, 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
514840
NSN: 5330-00-438-9022
FSC: 5330 — Packing and Gasket Materials
CAGE: 80201 — SKF USA INC. DBA SKF AEROSPACE SEALING SOLUTIONS (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 5052 OR ALUMINUM ALLOY 5083 CASE
case_styleRECESSED
seal_width0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
temp_rating250.0 FAHRENHEIT DEGF
outside_diameter4.506 INCHES NOMINAL IN
special_featuresSURFACE TREATMENT IS CARCINOGEN
attachment_methodCEMENTED
housing_bore_diameter4.503 INCHES MINIMUM AND 4.508 INCHES MAXIMUM IN
sealing_element_styleANGULAR
accommodated_shaft_diameter3.497 INCHES MINIMUM AND 3.503 INCHES MAXIMUM IN
accommodated_shaft_maximum_rated_speed1975 FEET PER MINUTE FT
NSN5330-00-438-9022
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 514840 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
•
TEMP RATING: 250.0 FAHRENHEIT DEGF
•
SEAL WIDTH: 0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
•
SEALING ELEMENT STYLE: ANGULAR
•
OUTSIDE DIAMETER: 4.506 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 4.503 INCHES MINIMUM AND 4.508 INCHES MAXIMUM IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1975 FEET PER MINUTE FT
•
CASE STYLE: RECESSED
TECHNICAL CHARACTERISTICS
TEMP RATING250.0 FAHRENHEIT DEGF
SEAL WIDTH0.422 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
SEALING ELEMENT STYLEANGULAR
OUTSIDE DIAMETER4.506 INCHES NOMINAL IN
HOUSING BORE DIAMETER4.503 INCHES MINIMUM AND 4.508 INCHES MAXIMUM IN
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1975 FEET PER MINUTE FT
CASE STYLERECESSED
SPECIAL FEATURESSURFACE TREATMENT IS CARCINOGEN
ACCOMMODATED SHAFT DIAMETER3.497 INCHES MINIMUM AND 3.503 INCHES MAXIMUM IN
TEST DATA DOCUMENT81349-45005 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
SUBSTITUTES & CROSS-REFERENCES 6
2587118Reference document
Same NSN cross-reference
Reference document — Secondary reference
350-450-14-03EH51Reference document
Same NSN cross-reference
Reference document — Secondary reference
350-450-14-038851Reference document
Same NSN cross-reference
Reference document — Secondary reference
34891Reference document
Same NSN cross-reference
Reference document — Secondary reference
5428876-4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
15087Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Shelf-life managedAcquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 514840?
514840 is a SEAL,PLAIN ENCASED.
What parts can replace 514840?
There are 6 known substitutes for 514840: 2587118, 350-450-14-03EH51, 350-450-14-038851 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 514840?
514840 is cataloged in the U.S. Government catalog under NSN 5330-00-438-9022. 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.