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Technical Data Sheet
SP137B5 ✓ 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 PLUG ASSEMBLY,SEALING is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-044-3319, 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
SP137B5
NSN: 5340-01-044-3319
FSC: 5340
CAGE: 86845 — THE MARQUARDT COMPANY (USA)
SPECIFICATIONS
Part NumberSP137B5
NSN5340-01-044-3319
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: SP137B5 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
406101Upgraded Successor
successor cross-reference
successor
408101Interchangeable
interchangeable cross-reference
interchangeable
02-168-003Interchangeable
interchangeable cross-reference
interchangeable
576R929Interchangeable
interchangeable cross-reference
interchangeable
10117596Interchangeable
interchangeable cross-reference
interchangeable
576R929H54Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is SP137B5?
SP137B5 is a PLUG ASSEMBLY,SEALING.
What parts can replace SP137B5?
There are 15 known substitutes for SP137B5: 406101, 408101, 02-168-003 and 12 more. Substitute compatibility should be verified for your specific system.
Is SP137B5 still available?
SP137B5 is currently cancelled.
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