Part Number
O-Ring · AMS (SAE Aerospace Material Specification) · 7 stocked variants
Reading the part number. SAE-AMS7276 refers to SAE AMS7276, an Aerospace Material Specification — it defines the material or process itself. 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-AMS7276 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 |
|---|---|---|---|
| 5331-00-165-1948 | O-Ring | Cross-Sectional Height: 0.135 Inches Minimum And 0.143 Inches Maximum; Hardness Rating: 75.0 Shore Durometer A Nominal | $1.05 |
| 5331-00-166-0992 | O-Ring | Cross-Sectional Height: 0.067 Inches Minimum And 0.073 Inches Maximum; Hardness Rating: 75.0 Shore Durometer A Nominal | $0.27 |
| 5331-00-166-1074 | O-Ring | Cross-Sectional Height: 0.100 Inches Minimum And 0.106 Inches Maximum; Hardness Rating: 75.0 Shore Durometer A Nominal | $0.22 |
| 5331-00-166-8402 | O-Ring | Cross-Sectional Height: 0.135 Inches Minimum And 0.143 Inches Maximum; Hardness Rating: 75.0 Shore Durometer A Nominal | $0.35 |
| 5331-00-167-5148 | O-Ring | Cross-Sectional Height: 0.135 Inches Minimum And 0.143 Inches Maximum; Hardness Rating: 75.0 Shore Durometer A Nominal | $4.38 |
| 5331-01-005-0508 | O-Ring | Cross-Sectional Height: 0.100 Inches Minimum And 0.106 Inches Maximum; Hardness Rating: 75.0 Shore Durometer A Nominal | $0.43 |
| 5331-01-399-3798 | O-Ring | Cross-Sectional Height: 0.135 Inches Minimum And 0.143 Inches Maximum; Material: Rubber Fluorocarbon Class Fpm | $12.27 |
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.
