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Technical Data Sheet
PartsTable / COMPONENT / DY-127723-727723PH
DY-127723-727723PH ✓ 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

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: NICKEL ALLOY, design_type: SOLID, end_diameter: 1.2500 INCHES NOMINAL IN, bore_diameter: 0.1880 INCHES NOMINAL IN, overall_height: 1.0000 INCHES NOMINAL IN, special_features: TWO UNTHD HOLES 0.2190 IN. DIA,0.5620 IN.

DEEP 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 5340-00-110-3676, 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
DY-127723-727723PH
NSN: 5340-00-110-3676
FSC: 5340
CAGE: 0UBG9 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV EPD (USA)
SPECIFICATIONS
materialNICKEL ALLOY
design_typeSOLID
end_diameter1.2500 INCHES NOMINAL IN
bore_diameter0.1880 INCHES NOMINAL IN
overall_height1.0000 INCHES NOMINAL IN
special_featuresTWO UNTHD HOLES 0.2190 IN. DIA,0.5620 IN. DEEP IN
style_designatorSEAT
counterbore_length0.1250 INCHES NOMINAL IN
first_step_diameter1.8750 INCHES NOMINAL IN
counterbore_diameter0.5000 INCHES NOMINAL IN
distance_from_end_to_first_step0.7500 INCHES NOMINAL IN
NSN5340-00-110-3676
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DY-127723-727723PH 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
•
FIRST STEP DIAMETER: 1.8750 INCHES NOMINAL IN
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
END DIAMETER: 1.2500 INCHES NOMINAL IN
•
DISTANCE FROM END TO FIRST STEP: 0.7500 INCHES NOMINAL IN
•
COUNTERBORE LENGTH: 0.1250 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL HEIGHT1.0000 INCHES NOMINAL IN
FIRST STEP DIAMETER1.8750 INCHES NOMINAL IN
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
END DIAMETER1.2500 INCHES NOMINAL IN
DISTANCE FROM END TO FIRST STEP0.7500 INCHES NOMINAL IN
COUNTERBORE LENGTH0.1250 INCHES NOMINAL IN
SPECIAL FEATURESTWO UNTHD HOLES 0.2190 IN. DIA,0.5620 IN. DEEP IN
MATERIALNICKEL ALLOY
BORE DIAMETER0.1880 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
144247Upgraded Successor
successor cross-reference
successor
SM2667Upgraded Successor
successor cross-reference
successor
2198879Upgraded Successor
successor cross-reference
successor
3010-0076Upgraded Successor
successor cross-reference
successor
10.227Upgraded Successor
successor cross-reference
successor
709021Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is DY-127723-727723PH?
DY-127723-727723PH is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace DY-127723-727723PH?
There are 19 known substitutes for DY-127723-727723PH: 144247, SM2667, 2198879 and 16 more. Substitute compatibility should be verified for your specific system.
What is the NSN for DY-127723-727723PH?
DY-127723-727723PH is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-110-3676. 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