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Technical Data Sheet
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85111S41-125PC777 — Technical Data Sheet

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— · 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 PLUNGER,DETENT is a the manufacturer industrial component. Key specifications include length: 0.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN, diameter: 0.665 INCHES MINIMUM AND 0.668 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN, material: STEEL OVERALL, special_features: 8 HOLES EQUALLY SPACED LOCATED 0.062 IN. FROM END IN.

This part is cataloged in the Federal Logistics Information System under NSN 5340-00-343-7400, 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
85111S41-125PC777
NSN: 5340-00-343-7400
FSC: 5340
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
length0.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
diameter0.665 INCHES MINIMUM AND 0.668 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
materialSTEEL OVERALL
special_features8 HOLES EQUALLY SPACED LOCATED 0.062 IN. FROM END IN
NSN5340-00-343-7400
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 85111S41-125PC777 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
•
MATERIAL: STEEL OVERALL
•
LENGTH: 0.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
DIAMETER: 0.665 INCHES MINIMUM AND 0.668 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
TECHNICAL CHARACTERISTICS
MATERIALSTEEL OVERALL
LENGTH0.875 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
SPECIAL FEATURES8 HOLES EQUALLY SPACED LOCATED 0.062 IN. FROM END IN
DIAMETER0.665 INCHES MINIMUM AND 0.668 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
8-52-47Upgraded SuccessorGOVERNMENT REGISTRY
successor cross-reference
successor
15383InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
907-24InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
253712InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3564InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
DURAPOREInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 85111S41-125PC777?
85111S41-125PC777 is a PLUNGER,DETENT.
What parts can replace 85111S41-125PC777?
There are 18 known substitutes for 85111S41-125PC777: 8-52-47, 15383, 907-24 and 15 more. Substitute compatibility should be verified for your specific system.
Is 85111S41-125PC777 still available?
85111S41-125PC777 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: October 2026