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3181RA PIECE 11 — SEAT,HELICAL COMPRESSION SPRING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3181RA PIECE 11: SEAT,HELICAL COMPRESSION SPRING.

SEAT,HELICAL COMPRESSION SPRING. Key specifications include material: ALUMINUM ALLOY 2024, design_type: SOLID, style_designator: SEAT, surface_treatment: ANODIZE, material_document_and_classification: QQ-A-200/3, ALLOY 2024 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/6, ALLOY 2024 FED SPEC 2ND MATERIAL RESPONSE, surface_treatment_document_and_classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-209-1141, 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
3181RA PIECE 11
NSN: 5340-01-209-1141
FSC: 5340 — Hardware, Commercial
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 2024
design_typeSOLID
style_designatorSEAT
surface_treatmentANODIZE
material_document_and_classificationQQ-A-200/3, ALLOY 2024 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/6, ALLOY 2024 FED SPEC 2ND MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-209-1141
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3181RA PIECE 11 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
•
DESIGN TYPE: SOLID
•
STYLE DESIGNATOR: SEAT
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-200/3, ALLOY 2024 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/6, ALLOY 2024 FED SPEC 2ND MATERIAL RESPONSE
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM ALLOY 2024
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
DESIGN TYPESOLID
STYLE DESIGNATORSEAT
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-200/3, ALLOY 2024 FED SPEC 1ST MATERIAL RESPONSE AND QQ-A-225/6, ALLOY 2024 FED SPEC 2ND MATERIAL RESPONSE
SURFACE TREATMENTANODIZE
MATERIALALUMINUM ALLOY 2024
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES 3
3159RAPC11Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
307887Reference document
Same NSN cross-reference
Reference document — Secondary reference
3078B8Reference 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 3181RA PIECE 11?
3181RA PIECE 11 is a SEAT,HELICAL COMPRESSION SPRING.
What parts can replace 3181RA PIECE 11?
There are 3 known substitutes for 3181RA PIECE 11: 3159RAPC11, 307887, 3078B8. Substitute compatibility should be verified for your specific system.
What is the NSN for 3181RA PIECE 11?
3181RA PIECE 11 is cataloged in the U.S. Government catalog under NSN 5340-01-209-1141. This indicates validated use in U.S. government and defense supply chains.
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