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PartsTable / COMPONENT / ES5621-1
ES5621-1 ✓ 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 FERRULE,GROOVED CLAMP COUPLING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 360 OVERALL, overall_length: 0.250 INCHES NOMINAL IN, wall_thickness: 0.171 INCHES NOMINAL IN, surface_treatment: NICKEL OVERALL, ferrule_inside_diameter: 0.220 INCHES NOMINAL IN, flange_outside_diameter: 0.562 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-436-1888, 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
ES5621-1
NSN: 5340-00-436-1888
FSC: 5340
CAGE: 71279 — INTERCONNECTION PRODUCTS INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 360 OVERALL
overall_length0.250 INCHES NOMINAL IN
wall_thickness0.171 INCHES NOMINAL IN
surface_treatmentNICKEL OVERALL
ferrule_inside_diameter0.220 INCHES NOMINAL IN
flange_outside_diameter0.562 INCHES NOMINAL IN
cross-sectional_shape_styleFLANGED
material_document_and_classificationQQ-B-626,ALLOY 360 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classificationQQ-N-290, CLASS 1, TYPE 5 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
NSN5340-00-436-1888
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ES5621-1 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
•
FLANGE OUTSIDE DIAMETER: 0.562 INCHES NOMINAL IN
•
WALL THICKNESS: 0.171 INCHES NOMINAL IN
•
SURFACE TREATMENT: NICKEL OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626,ALLOY 360 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY 360 OVERALL
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-N-290, CLASS 1, TYPE 5 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
•
FERRULE INSIDE DIAMETER: 0.220 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: FLANGED
TECHNICAL CHARACTERISTICS (FLIS)
FLANGE OUTSIDE DIAMETER0.562 INCHES NOMINAL IN
WALL THICKNESS0.171 INCHES NOMINAL IN
SURFACE TREATMENTNICKEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626,ALLOY 360 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY 360 OVERALL
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-N-290, CLASS 1, TYPE 5 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
FERRULE INSIDE DIAMETER0.220 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEFLANGED
OVERALL LENGTH0.250 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
12856Interchangeable
interchangeable cross-reference
interchangeable
N12856Interchangeable
interchangeable cross-reference
interchangeable
163070Interchangeable
interchangeable cross-reference
interchangeable
808138Interchangeable
interchangeable cross-reference
interchangeable
04718Interchangeable
interchangeable cross-reference
interchangeable
172S7Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ES5621-1?
ES5621-1 is a FERRULE,GROOVED CLAMP COUPLING.
What parts can replace ES5621-1?
There are 11 known substitutes for ES5621-1: 12856, N12856, 163070 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for ES5621-1?
ES5621-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-436-1888. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026