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Technical Data Sheet
377128A ✓ 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 GASKET is a the manufacturer industrial component. Key specifications include material: PAPER AND GLUE AND GLYCERIN OVERALL, hole_diameter: 0.218 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, overall_width: 1.219 INCHES NOMINAL IN, overall_length: 2.000 INCHES NOMINAL IN, bolt_circle_diameter: 1.500 INCHES NOMINAL IN, cross-sectional_thickness: 0.031 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-756-1673, 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
377128A
NSN: 5330-00-756-1673
FSC: 5330
CAGE: 28265 — HERCULES ENGINE CO INC (USA)
SPECIFICATIONS
materialPAPER AND GLUE AND GLYCERIN OVERALL
hole_diameter0.218 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width1.219 INCHES NOMINAL IN
overall_length2.000 INCHES NOMINAL IN
bolt_circle_diameter1.500 INCHES NOMINAL IN
cross-sectional_thickness0.031 INCHES NOMINAL IN
cross-sectional_shape_styleSOLID SINGLE OR COMPOSITION
material_document_and_classificationHH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5330-00-756-1673
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 377128A 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
CROSS-SECTIONAL SHAPE STYLE: SOLID SINGLE OR COMPOSITION
BOLT CIRCLE DIAMETER: 1.500 INCHES NOMINAL IN
MATERIAL: PAPER AND GLUE AND GLYCERIN OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: HH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
HOLE DIAMETER: 0.218 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS: 0.031 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
CROSS-SECTIONAL SHAPE STYLESOLID SINGLE OR COMPOSITION
OVERALL LENGTH2.000 INCHES NOMINAL IN
BOLT CIRCLE DIAMETER1.500 INCHES NOMINAL IN
MATERIALPAPER AND GLUE AND GLYCERIN OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONHH-P-96 FED SPEC ALL MATERIAL RESPONSES OVERALL
OVERALL WIDTH1.219 INCHES NOMINAL IN
HOLE DIAMETER0.218 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
CROSS-SECTIONAL THICKNESS0.031 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
K-5134753Interchangeable
interchangeable cross-reference
interchangeable
5134753Interchangeable
interchangeable cross-reference
interchangeable
33149Interchangeable
interchangeable cross-reference
interchangeable
AMS-R-7362Interchangeable
interchangeable cross-reference
interchangeable
15970Interchangeable
interchangeable cross-reference
interchangeable
2-218612-45Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 377128A?
377128A is a GASKET.
What parts can replace 377128A?
There are 21 known substitutes for 377128A: K-5134753, 5134753, 33149 and 18 more. Substitute compatibility should be verified for your specific system.
Is 377128A still available?
377128A is currently cancelled.
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