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3145B12-1 — RETAINER,HELICAL COMPRESSION SPR

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

3145B12-1: RETAINER,HELICAL COMPRESSION SPR.

RETAINER,HELICAL COMPRESSION SPR. Key specifications include material: ALUMINUM ALLOY 6061, surface_treatment: ANODIZE, casehardening_indicator: NOT CASEHARDENED, material_document_and_classification: QQ-A-225/8, ALLOY 6061, T651 FED SPEC 1ST 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 5340-01-150-9552, 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
3145B12-1
NSN: 5340-01-150-9552
FSC: 5340 — Hardware, Commercial
CAGE: 78062 — SARGENT AEROSPACE & DEFENSE, LLC DBA SARGENT CONTROLS & AEROSPACE DIV SARGENT CONTROLS & AEROSPACE (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6061
surface_treatmentANODIZE
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationQQ-A-225/8, ALLOY 6061, T651 FED SPEC 1ST MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5340-01-150-9552
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 3145B12-1 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
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-225/8, ALLOY 6061, T651 FED SPEC 1ST MATERIAL RESPONSE
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
SURFACE TREATMENT: ANODIZE
•
MATERIAL: ALUMINUM ALLOY 6061
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-225/8, ALLOY 6061, T651 FED SPEC 1ST MATERIAL RESPONSE
CASEHARDENING INDICATORNOT CASEHARDENED
SURFACE TREATMENTANODIZE
MATERIALALUMINUM ALLOY 6061
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 1
3332RA PIECE 32Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 3145B12-1?
3145B12-1 is a RETAINER,HELICAL COMPRESSION SPR.
What parts can replace 3145B12-1?
There is 1 known substitute for 3145B12-1: 3332RA PIECE 32. Substitute compatibility should be verified for your specific system.
What is the NSN for 3145B12-1?
3145B12-1 is cataloged in the U.S. Government catalog under NSN 5340-01-150-9552. This indicates validated use in U.S. government and defense supply chains.
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