Part Number
Compression Helical Spring · OEM / vendor part number · NSN 5360-00-291-5065
| Part number | 7K3-4182 |
|---|---|
| Specification family | OEM / vendor part number |
| Item name | Compression Helical Spring |
| Unit of issue | EA |
| Cross-referenced NSN | 5360-00-291-5065 |
| Federal Supply Class (FSC) | 5360 — Coil, Flat, and Wire Springs |
| Unit price (USD) | $1,139.00 |
| Country of origin | Türkiye (Turkey) |
| Lead time | Within 90 days of order |
| Minimum order | May apply — confirm on quote |
| Documentation | Source documentation provided on all orders |
Characteristics decoded from the federal cataloging record for this compression helical spring. Confirm controlling dimensions against your drawing or standard sheet before ordering.
| Material | Steel Overall |
|---|---|
| Surface Treatment | Cadmium Overall |
| Inside Diameter | 0.265625 Inches Nominal |
Mechanical springs including compression, extension, torsion, flat, and wire-form springs that store and release mechanical energy.
Reading the part number. 7K3-4182 is a vendor part number for this compression helical spring. If your documentation lists a different reference for the same item, include it on the quote and we will confirm the cross-reference.
Price in context. Across the 102 items we currently stock in FSC 5360 (Coil, Flat, and Wire Springs), published unit prices run from $0.87 to $4,500.00. At $1,139.00, this item sits well above the class median of $42.05 — typical of assemblies and higher-value line items in this class.
Stock activity. This item has appeared once in our supplier stock feed, most recently listed 2026-07-10, with a lot quantity of 5 units. Listing activity is a practical signal of ongoing availability; confirm current stock and firm pricing on your quote.
Who orders 7K3-4182. Aircraft owners and MRO shops replacing standard hardware, machine shops and OEMs filling a bill of materials, and government contractors sourcing against NSN 5360-00-291-5065. You can order by part number or by stock number — it is the same item, the same published price, and the same quote form.
Applicable standards. ASTM A228/A229/A401 spring wire, SAE and MIL specs.
Need this part modified, or a similar part made to your print? See our U.S.-based CNC machining services and aerospace machining capability.
Country of origin: Türkiye (Turkey) — a DFARS qualifying country. Türkiye is a NATO ally with a reciprocal defense procurement agreement with the U.S. Department of Defense, making it a qualifying country under DFARS 225.003. On DoD and DLA solicitations, qualifying-country end products are evaluated without Buy American price penalties — they compete on par with domestic product — and DoD trade-agreements clauses (DFARS 252.225-7021) expressly accept qualifying-country end products.
Dollar thresholds. The Trade Agreements Act only applies to supply contracts at or above $174,000 (the WTO GPA threshold effective March 2026); below that — where the vast majority of hardware buys fall — the TAA does not apply at all. The main exclusion is civilian-agency solicitations at or above that threshold that restrict award to TAA designated-country products (Türkiye is not TAA-designated). Buyers are responsible for confirming the origin requirements of their specific solicitation.
Full country-of-origin and source documentation is provided with every order. Fulfillment within 90 days of order. Minimum order may apply.
Items are supplied as stock mil-spec / commercial hardware with source documentation and country-of-origin paperwork on every order. Parts are not supplied with an FAA Form 8130-3 airworthiness tag unless expressly stated on the quote. Buyers installing hardware on certificated aircraft are responsible for acceptance under their own maintenance program, repair station procedures, or owner/operator authority.
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