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20409-003 FIND 6 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

20409-003 FIND 6: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: ALUMINUM ALLOY 6061, style_designator: PARALLEL, casehardening_indicator: NOT CASEHARDENED, material_document_and_classification: QQ-A-225/8, ALLOY 6061, T651 FED SPEC SINGLE MATERIAL RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-190-1135, 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
20409-003 FIND 6
NSN: 5340-01-190-1135
FSC: 5340 — Hardware, Commercial
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
style_designatorPARALLEL
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationQQ-A-225/8, ALLOY 6061, T651 FED SPEC SINGLE MATERIAL RESPONSE
NSN5340-01-190-1135
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 20409-003 FIND 6 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
•
STYLE DESIGNATOR: PARALLEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/8, ALLOY 6061, T651 FED SPEC SINGLE MATERIAL RESPONSE
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MATERIAL: ALUMINUM ALLOY 6061
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORPARALLEL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8, ALLOY 6061, T651 FED SPEC SINGLE MATERIAL RESPONSE
CASEHARDENING INDICATORNOT CASEHARDENED
MATERIALALUMINUM ALLOY 6061
SUBSTITUTES & CROSS-REFERENCES 2
20409-003Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
20466-1000Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 20409-003 FIND 6?
20409-003 FIND 6 is a RETAINER,HELICAL COMPRESSION SPR.
What parts can replace 20409-003 FIND 6?
There are 2 known substitutes for 20409-003 FIND 6: 20409-003, 20466-1000. Substitute compatibility should be verified for your specific system.
What is the NSN for 20409-003 FIND 6?
20409-003 FIND 6 is cataloged in the U.S. Government catalog under NSN 5340-01-190-1135. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.