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Technical Data Sheet
69-56943-1 ✓ 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

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: STEEL COMP 303 OR STEEL COMP 303SE, overall_height: 0.980 INCHES NOMINAL IN, style_designator: IRREGULAR, body_inside_diameter: 0.600 INCHES NOMINAL IN, fsc_application_data: AIRCRAFT HYDRAULIC SYSTEM, body_outside_diameter: 0.700 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-182-7380, 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
69-56943-1
NSN: 5340-01-182-7380
FSC: 5340
CAGE: 82918 — THE BOEING COMPANY DIV LEGACY WICHITA (USA)
SPECIFICATIONS
materialSTEEL COMP 303 OR STEEL COMP 303SE
overall_height0.980 INCHES NOMINAL IN
style_designatorIRREGULAR
body_inside_diameter0.600 INCHES NOMINAL IN
fsc_application_dataAIRCRAFT HYDRAULIC SYSTEM
body_outside_diameter0.700 INCHES NOMINAL IN
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationQQ-S-763, CLASS 303, COND A FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-763, CLASS 303SE, COND A FED SPEC 2ND MATERIAL RESPONSE
NSN5340-01-182-7380
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 69-56943-1 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 DOCUMENT AND CLASSIFICATION: QQ-S-763, CLASS 303, COND A FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-763, CLASS 303SE, COND A FED SPEC 2ND MATERIAL RESPONSE
MATERIAL: STEEL COMP 303 OR STEEL COMP 303SE
STYLE DESIGNATOR: IRREGULAR
FSC APPLICATION DATA: AIRCRAFT HYDRAULIC SYSTEM
BODY INSIDE DIAMETER: 0.600 INCHES NOMINAL IN
CASEHARDENING INDICATOR: NOT CASEHARDENED
BODY OUTSIDE DIAMETER: 0.700 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763, CLASS 303, COND A FED SPEC 1ST MATERIAL RESPONSE AND QQ-S-763, CLASS 303SE, COND A FED SPEC 2ND MATERIAL RESPONSE
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE
STYLE DESIGNATORIRREGULAR
FSC APPLICATION DATAAIRCRAFT HYDRAULIC SYSTEM
BODY INSIDE DIAMETER0.600 INCHES NOMINAL IN
CASEHARDENING INDICATORNOT CASEHARDENED
BODY OUTSIDE DIAMETER0.700 INCHES NOMINAL IN
OVERALL HEIGHT0.980 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
695694Interchangeable
interchangeable cross-reference
interchangeable
A505-12Interchangeable
interchangeable cross-reference
interchangeable
695694-3Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 69-56943-1?
69-56943-1 is a RETAINER,HELICAL COMPRESSION SPR.
What parts can replace 69-56943-1?
There are 3 known substitutes for 69-56943-1: 695694, A505-12, 695694-3. Substitute compatibility should be verified for your specific system.
What is the NSN for 69-56943-1?
69-56943-1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5340-01-182-7380. This indicates validated use in U.S. government and defense supply chains.
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