National Stock Number
Back Plate Lock — Nails, Machine Keys, and Pins (FSC 5315) · Part No. MIL-A-2550
| National Stock Number | 5315-00-809-0680 |
|---|---|
| Item name | Back Plate Lock |
| Part number (commercial reference) | MIL-A-2550 |
| Unit of issue | EA |
| NIIN | 008090680 |
| NIIN assigned by | United States (NCB code 00) |
| Federal Supply Class (FSC) | 5315 — Nails, Machine Keys, and Pins |
| Federal Supply Group (FSG) | 53 — Hardware and Abrasives |
| Unit price (USD) | $350.46 |
| 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 |
Fastening and locating hardware including cotter pins, dowel pins, spring pins, taper pins, clevis pins, machine keys, and nails.
Price in context. Across the 229 items we currently stock in FSC 5315 (Nails, Machine Keys, and Pins), published unit prices run from $0.18 to $26,284.50. At $350.46, this item sits well above the class median of $17.52 — typical of assemblies and higher-value line items in this class.
Typical applications. Positive locking of castellated nuts, shaft-to-hub keying, hinge and clevis connections, and precise component location.
Applicable standards. ASME B18.8.1 / B18.8.2, B17.1 keys; steel and stainless.
NSN 5315-00-809-0680 is supplied by Quick Brown Fox Solutions as a stock resale item. For custom-manufactured or prototype parts to your print, see our U.S.-based CNC machining services.
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.
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