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Technical Data Sheet
PartsTable / COMPONENT / GJN76-142PC123
GJN76-142PC123 ✓ Verified by PartsTable
— · ORING SEAL
WHAT YOU NEED TO KNOW
Material determines chemical compatibility Standard durometer is 70 Shore A
Wrong material = catastrophic seal failure
PRODUCT OVERVIEW

The SEAL,PLAIN ENCASED is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC SEALING ELEMENT B, case_style: SQUARE, seal_width: 0.250 INCHES NOMINAL IN, housing_bore_diameter: 1.119 INCHES NOMINAL IN, sealing_element_style: ANGULAR-OPPOSED, accommodated_shaft_diameter: 0.669 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-297-4449, 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
GJN76-142PC123
NSN: 5330-00-297-4449
FSC: 5330
CAGE: 50309 — JOHN REINER & CO. INC. (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC SEALING ELEMENT B
case_styleSQUARE
seal_width0.250 INCHES NOMINAL IN
housing_bore_diameter1.119 INCHES NOMINAL IN
sealing_element_styleANGULAR-OPPOSED
accommodated_shaft_diameter0.669 INCHES NOMINAL IN
accommodated_shaft_maximum_rated_speed1000 FEET PER MINUTE FT
NSN5330-00-297-4449
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: GJN76-142PC123 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
•
CASE STYLE: SQUARE
•
ACCOMMODATED SHAFT DIAMETER: 0.669 INCHES NOMINAL IN
•
SEAL WIDTH: 0.250 INCHES NOMINAL IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT B
•
SEALING ELEMENT STYLE: ANGULAR-OPPOSED
•
HOUSING BORE DIAMETER: 1.119 INCHES NOMINAL IN
•
ACCOMMODATED SHAFT MAXIMUM RATED SPEED: 1000 FEET PER MINUTE FT
TECHNICAL CHARACTERISTICS (FLIS)
CASE STYLESQUARE
ACCOMMODATED SHAFT DIAMETER0.669 INCHES NOMINAL IN
SEAL WIDTH0.250 INCHES NOMINAL IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
SEALING ELEMENT STYLEANGULAR-OPPOSED
HOUSING BORE DIAMETER1.119 INCHES NOMINAL IN
MATERIALLEATHER SEALING ELEMENT A
ACCOMMODATED SHAFT MAXIMUM RATED SPEED1000 FEET PER MINUTE FT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
687456C1Interchangeable
interchangeable cross-reference
interchangeable
16KP261Interchangeable
interchangeable cross-reference
interchangeable
TY22470Interchangeable
interchangeable cross-reference
interchangeable
673-2Interchangeable
interchangeable cross-reference
interchangeable
2-300-338-01Interchangeable
interchangeable cross-reference
interchangeable
194043P3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is GJN76-142PC123?
GJN76-142PC123 is a SEAL,PLAIN ENCASED.
What parts can replace GJN76-142PC123?
There are 16 known substitutes for GJN76-142PC123: 687456C1, 16KP261, TY22470 and 13 more. Substitute compatibility should be verified for your specific system.
Is GJN76-142PC123 still available?
GJN76-142PC123 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026