We’re pleased to announce that A661 (Spring Helical Compression, NSN: 4820-00-266-4278) is now in stock and ready for immediate quoting. This component, manufactured by Ecolaire Inc (CAGE Code: 51228), is classified under NIIN 00-266-4278 and NCB Code 00 (USA), with additional categorization under FSG 48 Valves/FSC 4820 Valves Nonpowered and INC . Our team can provide same-day shipping for urgent requirements.
To receive your competitive quote within 15 minutes, simply complete our RFQ form part A661, ensuring all required fields are filled. Our streamlined process guarantees fast, no-obligation pricing so you can secure your supply of A661 without delay. Contact us today to meet your procurement needs efficiently
ASAP Part Services, a trusted subsidiary of ASAP Semiconductor, is a premier distributor of Ecolaire Inc components—specializing in obsolete and hard-to-find parts. As an AS9120B, ISO 9001:2015, and FAA AC 0056B certified supplier, we adhere to the highest industry standards under the Aviation Suppliers Association (ASA). Our global network spans 5,000+ top manufacturers, ensuring access to over 2 billion unique parts for critical needs.
With strategically located shipping centers in California, we offer rapid same-day or next-day delivery on in-stock items like A661. Whether you're sourcing rare components or need expedited logistics, we provide reliable solutions to keep your operations moving forward.
| MRC | Criteria | Characteristic |
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| ABQK | End Style | SPRING END,SQUARED AND GROUND BOTH ENDS |
| AXJQ | Spring Solid Length | 0.719 INCHES NOMINAL |
| AXLH | Coil Helix Direction | LEFT-HAND |
| AXLQ | Spring Free Outside Diameter | 0.622 INCHES NOMINAL |
| AGEK | Spring Free Length | 1.250 INCHES NOMINAL |
| AARX | Inside Diameter | 0.438 INCHES NOMINAL |
| APCN | Coil Quantity | 7-1/2 |
| STYL | Style Designator | CYLINDRICAL |
| MATT | Material | STEEL OVERALL |
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Remember Us the Next Time You’re Looking for NSN Parts. We Can Get You Some of the Quickest and Most Competitive Quotes In the Industry.
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