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Technical Data Sheet
PartsTable / COMPONENT / M85049/138-74A
M85049/138-74A ✓ 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 M85049/138-74A is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-00-682-2473, 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
M85049/138-74A
NSN: 5340-00-682-2473
FSC: 5340
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
Part NumberM85049/138-74A
NSN5340-00-682-2473
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M85049/138-74A 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
•
DESIGN TYPE: FRICTION
•
INSIDE DIAMETER LENGTH: 0.569 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 2.404 INCHES MINIMUM AND 2.466 INCHES MAXIMUM IN
•
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED: 2.205 INCHES MINIMUM AND 2.225 INCHES MAXIMUM IN
•
ROUND CAP OUTSIDE SURFACE CONDITION: SMOOTH
•
MATERIAL: PLASTIC
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN TYPEFRICTION
INSIDE DIAMETER LENGTH0.569 INCHES MINIMUM AND 0.631 INCHES MAXIMUM IN
OVERALL DIAMETER2.404 INCHES MINIMUM AND 2.466 INCHES MAXIMUM IN
TUBE OUTSIDE DIAMETER FOR WHICH DESIGNED2.205 INCHES MINIMUM AND 2.225 INCHES MAXIMUM IN
ROUND CAP OUTSIDE SURFACE CONDITIONSMOOTH
MATERIALPLASTIC
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
6971-0014Upgraded Successor
successor cross-reference
successor
MS90376-12RBUpgraded Successor
successor cross-reference
successor
M85049/138-24CUpgraded Successor
successor cross-reference
successor
6972-0012Upgraded Successor
successor cross-reference
successor
M85049/138-22CUpgraded Successor
successor cross-reference
successor
M85049/138-20CUpgraded Successor
successor cross-reference
successor
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M85049/138-74A?
M85049/138-74A is a M85049/138-74A.
What parts can replace M85049/138-74A?
There are 12 known substitutes for M85049/138-74A: 6971-0014, MS90376-12RB, M85049/138-24C and 9 more. Substitute compatibility should be verified for your specific system.
Is M85049/138-74A still available?
M85049/138-74A 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