Part Number
Compression Helical Spring · AS (SAE Aerospace Standard) · 6 stocked variants
Reading the part number. SAE-AS13572 refers to SAE AS13572, an SAE Aerospace Standard — it fixes the part's design. Items cataloged under the spec number rather than a dash-numbered part number are procured to the specification; the NSN record pins down which specific item this is.
Because SAE-AS13572 is a specification-level reference, each conforming variant carries its own National Stock Number. The table below lists every variant we stock, with its decoded characteristics and published price — open the NSN record to see the full specification and order that exact item.
| NSN | Item | Key characteristics | Unit price |
|---|---|---|---|
| 5360-00-078-0122 | Compression Helical Spring | Material: Steel Comp 302 Overall; Inside Diameter: 0.270 Inches Nominal | $17.52 |
| 5360-00-079-1713 | Compression Helical Spring | Material: Steel Uns K08500 Overall; Inside Diameter: 0.276 Inches Nominal | $4.50 |
| 5360-00-498-7004 | Extension Helical Spring | Inside Diameter: 0.624 Inches Nominal; Surface Treatment: Cadmium Overall And Chromate Overall | $2.28 |
| 5360-00-559-5138 | Compression Helical Spring | Material: Steel Uns K08500 Overall; Inside Diameter: 0.188 Inches Nominal | $2.46 |
| 5360-00-782-8732 | Compression Helical Spring | Material: Steel Uns K08500 Overall; Inside Diameter: 0.196 Inches Nominal | $4.56 |
| 5360-00-926-5360 | Compression Helical Spring | Material: Steel Comp 302 Overall Or Steel Comp 304 Overall; Inside Diameter: 0.088 Inches Nominal | $0.87 |
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.
