PartsTable
Technical Data Sheet
40397-09 FIND 3 ✓ 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: COPPER ALLOY 268, design_type: SOLID, style_designator: SEAT, material_document_and_classification: QQ-B-626, COMP 1, 1/2 H MFR REF SINGLE MATERIAL RESPONSE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-243-3658, 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
40397-09 FIND 3
NSN: 5340-01-243-3658
FSC: 5340
CAGE: 55378 — TRAC REGULATOR CO., INC. DBA TRAC REGULATOR CO INC (USA)
SPECIFICATIONS
materialCOPPER ALLOY 268
design_typeSOLID
style_designatorSEAT
material_document_and_classificationQQ-B-626, COMP 1, 1/2 H MFR REF SINGLE MATERIAL RESPONSE
NSN5340-01-243-3658
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 40397-09 FIND 3 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: SOLID
MATERIAL: COPPER ALLOY 268
STYLE DESIGNATOR: SEAT
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626, COMP 1, 1/2 H MFR REF SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
DESIGN TYPESOLID
MATERIALCOPPER ALLOY 268
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626, COMP 1, 1/2 H MFR REF SINGLE MATERIAL RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
40398-09Interchangeable
interchangeable cross-reference
interchangeable
931-00Interchangeable
interchangeable cross-reference
interchangeable
40397-09 FIND 14Interchangeable
interchangeable cross-reference
interchangeable
40397-09 25T6OPSIInterchangeable
interchangeable cross-reference
interchangeable
40397-09 5TO60PSIInterchangeable
interchangeable cross-reference
interchangeable
40397-09Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 40397-09 FIND 3?
40397-09 FIND 3 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 40397-09 FIND 3?
There are 16 known substitutes for 40397-09 FIND 3: 40398-09, 931-00, 40397-09 FIND 14 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 40397-09 FIND 3?
40397-09 FIND 3 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-243-3658. This indicates validated use in U.S. government and defense supply chains.
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