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Technical Data Sheet
PartsTable / COMPONENT / 187984H1
187984H1 ✓ 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 width: 2.000 INCHES NOMINAL IN, height: 2.625 INCHES NOMINAL IN, length: 3.000 INCHES NOMINAL IN, material: STEEL, hole_diameter: 0.750 INCHES NOMINAL IN, furnished_items: LOCKNUT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-006-0770, 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
187984H1
NSN: 5330-00-006-0770
FSC: 5330
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
width2.000 INCHES NOMINAL IN
height2.625 INCHES NOMINAL IN
length3.000 INCHES NOMINAL IN
materialSTEEL
hole_diameter0.750 INCHES NOMINAL IN
furnished_itemsLOCKNUT
NSN5330-00-006-0770
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 187984H1 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
•
SEALING ELEMENT STYLE: VERTICAL-ANGULAR
•
ACCOMMODATED SHAFT DIAMETER: 2.500 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 3.251 INCHES MINIMUM AND 3.253 INCHES MAXIMUM IN
•
MATERIAL: RUBBER SYNTHETIC SEALING ELEMENT A
•
SURFACE TREATMENT: PLASTIC CASE
•
SEAL WIDTH: 0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 3.256 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
SEALING ELEMENT STYLEVERTICAL-ANGULAR
ACCOMMODATED SHAFT DIAMETER2.500 INCHES NOMINAL IN
HOUSING BORE DIAMETER3.251 INCHES MINIMUM AND 3.253 INCHES MAXIMUM IN
MATERIALRUBBER SYNTHETIC SEALING ELEMENT A
MATERIALRUBBER SYNTHETIC SEALING ELEMENT B
SURFACE TREATMENTPLASTIC CASE
SEAL WIDTH0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN
OUTSIDE DIAMETER3.256 INCHES NOMINAL IN
MATERIALSTEEL CASE
CASE STYLESQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
72837Interchangeable
interchangeable cross-reference
interchangeable
D72837Interchangeable
interchangeable cross-reference
interchangeable
187984H1Interchangeable
interchangeable cross-reference
interchangeable
11273Interchangeable
interchangeable cross-reference
interchangeable
PRP902-14Interchangeable
interchangeable cross-reference
interchangeable
24903Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 187984H1?
187984H1 is a SEAL,PLAIN ENCASED.
What parts can replace 187984H1?
There are 19 known substitutes for 187984H1: 72837, D72837, 187984H1 and 16 more. Substitute compatibility should be verified for your specific system.
Is 187984H1 still available?
187984H1 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