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Technical Data Sheet
DD421S55-188ALT1PC59 ✓ 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 RETAINER,PACKING is a the manufacturer industrial component. Key specifications include angle: 15.0 DEGREES NOMINAL, material: STEEL OVERALL, peripheral_diameter: 1.059 INCHES MINIMUM AND 1.061 INCHES MAXIMUM IN, center_hole_diameter: 0.689 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN, cross-sectional_height: 0.118 INCHES NOMINAL IN, cross-sectional_shape_style: CUP. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-336-9388, 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
DD421S55-188ALT1PC59
NSN: 5330-00-336-9388
FSC: 5330
CAGE: 80064 — NAVAL SHIP SYSTEMS COMMAND (USA)
SPECIFICATIONS
angle15.0 DEGREES NOMINAL
materialSTEEL OVERALL
peripheral_diameter1.059 INCHES MINIMUM AND 1.061 INCHES MAXIMUM IN
center_hole_diameter0.689 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
cross-sectional_height0.118 INCHES NOMINAL IN
cross-sectional_shape_styleCUP
NSN5330-00-336-9388
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DD421S55-188ALT1PC59 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
CENTER HOLE DIAMETER: 0.689 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT: 0.118 INCHES NOMINAL IN
MATERIAL: STEEL OVERALL
ANGLE: 15.0 DEGREES NOMINAL
PERIPHERAL DIAMETER: 1.059 INCHES MINIMUM AND 1.061 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLE: CUP
TECHNICAL CHARACTERISTICS (FLIS)
CENTER HOLE DIAMETER0.689 INCHES MINIMUM AND 0.693 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.118 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
ANGLE15.0 DEGREES NOMINAL
PERIPHERAL DIAMETER1.059 INCHES MINIMUM AND 1.061 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLECUP
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
15262Interchangeable
interchangeable cross-reference
interchangeable
9032075Interchangeable
interchangeable cross-reference
interchangeable
16MAX-16UFSInterchangeable
interchangeable cross-reference
interchangeable
10512697Interchangeable
interchangeable cross-reference
interchangeable
3914240Interchangeable
interchangeable cross-reference
interchangeable
025441-0034Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DD421S55-188ALT1PC59?
DD421S55-188ALT1PC59 is a RETAINER,PACKING.
What parts can replace DD421S55-188ALT1PC59?
There are 21 known substitutes for DD421S55-188ALT1PC59: 15262, 9032075, 16MAX-16UFS and 18 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DD421S55-188ALT1PC59?
DD421S55-188ALT1PC59 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5330-00-336-9388. This indicates validated use in U.S. government and defense supply chains.
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