Part Number
Socket Head Cap Screw · Military specification (MIL series) · 2 stocked variants
Reading the part number. MIL-S-1222 cites military specification MIL-S-1222. A spec citation covers every item made to that document, so the NSN — not the spec number — is what uniquely identifies this socket head cap screw; the cross-referenced stock number below is the exact item.
Because MIL-S-1222 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 |
|---|---|---|---|
| 5305-01-506-6526 | Socket Head Cap Screw | — | $328.56 |
| 5310-00-272-5705 | Hexagon Plain Nut | Hardness Rating: 80.0 Rockwell B Minimum; Material: Nickel Alloy Overall | $525.69 |
Country of origin: Türkiye (Turkey). Turkey is a NATO ally and a normal-trade-relations partner of the United States, and Turkish-origin end items are eligible for a wide range of U.S. federal and DLA procurements.
TAA note: Turkey is not a Trade Agreements Act (TAA) designated country, so these items are generally not eligible for TAA-covered solicitations. They are offerable under the Buy American Act and many non-TAA DLA buys. 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.
