PartsTable / COMPONENT / M2621A
M2621A
✓ 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: 0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN, outside_diameter: 3.256 INCHES NOMINAL IN, surface_treatment: PLASTIC CASE, housing_bore_diameter: 3.251 INCHES MINIMUM AND 3.253 INCHES MAXIMUM IN. 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
M2621A
NSN: 5330-00-006-0770 FSC: 5330 CAGE: 61208 — TWIN DISC, INCORPORATED DBA TWIN DISC MID-ATLANTIC (USA)
SPECIFICATIONS
material RUBBER SYNTHETIC SEALING ELEMENT B case_style SQUARE seal_width 0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN outside_diameter 3.256 INCHES NOMINAL IN surface_treatment PLASTIC CASE housing_bore_diameter 3.251 INCHES MINIMUM AND 3.253 INCHES MAXIMUM IN sealing_element_style VERTICAL-ANGULAR accommodated_shaft_diameter 2.500 INCHES NOMINAL IN NSN 5330-00-006-0770
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION
ID: —
CROSS-SECTION
CS: —
SPECIFICATION
Material: —
Durometer: —
Temp: —
PN: M2621A
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 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 MATERIAL RUBBER SYNTHETIC SEALING ELEMENT B SURFACE TREATMENT PLASTIC CASE SEAL WIDTH 0.421 INCHES MINIMUM AND 0.453 INCHES MAXIMUM IN OUTSIDE DIAMETER 3.256 INCHES NOMINAL IN MATERIAL STEEL CASE CASE STYLE SQUARE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
72837 Interchangeable interchangeable cross-reference
interchangeable
D72837 Interchangeable interchangeable cross-reference
interchangeable
187984H1 Interchangeable interchangeable cross-reference
interchangeable
11273 Interchangeable interchangeable cross-reference
interchangeable
PRP902-14 Interchangeable interchangeable cross-reference
interchangeable
24903 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M2621A?
M2621A is a SEAL,PLAIN ENCASED.
What parts can replace M2621A?
There are 19 known substitutes for M2621A: 72837, D72837, 187984H1 and 16 more. Substitute compatibility should be verified for your specific system.
Is M2621A still available?
M2621A is currently cancelled.