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Technical Data Sheet
PartsTable / O-RING / 377017
377017 ✓ 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 CONNECTING LINK,RIGID is a the manufacturer industrial component. Key specifications include material: STEEL, body_diameter: 0.250 INCHES NOMINAL IN, overall_length: 4.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5331-00-618-1920, 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
377017
NSN: 5331-00-618-1920
FSC: 5331 — O-RING
CAGE: 25187 — TELEDYNE INC TELEDYNE RODNEY METALS DIV KOPPEL PLANT (USA)
SPECIFICATIONS
materialSTEEL
body_diameter0.250 INCHES NOMINAL IN
overall_length4.000 INCHES NOMINAL IN
NSN5331-00-618-1920
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 377017 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: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
•
OUTSIDE DIAMETER: 0.801 INCHES MINIMUM AND 0.831 INCHES MAXIMUM IN
•
CROSS-SECTIONAL HEIGHT: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 0.667 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR
END ITEM IDENTIFICATIONMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
OUTSIDE DIAMETER0.801 INCHES MINIMUM AND 0.831 INCHES MAXIMUM IN
CROSS-SECTIONAL HEIGHT0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
CENTER HOLE DIAMETER0.667 INCHES MINIMUM AND 0.685 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 25
XT36173PC8Interchangeable
interchangeable cross-reference
interchangeable
914-5Interchangeable
interchangeable cross-reference
interchangeable
X1-1201-1503702PC5Interchangeable
interchangeable cross-reference
interchangeable
803187Interchangeable
interchangeable cross-reference
interchangeable
95376Interchangeable
interchangeable cross-reference
interchangeable
81924R91Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 377017?
377017 is a CONNECTING LINK,RIGID.
What parts can replace 377017?
There are 25 known substitutes for 377017: XT36173PC8, 914-5, X1-1201-1503702PC5 and 22 more. Substitute compatibility should be verified for your specific system.
Is 377017 still available?
377017 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: July 2026