National Stock Number
Hexagon Self-Locking Nut — Nuts and Washers (FSC 5310) · Part No. M45913/1-6FS6
| National Stock Number | 5310-01-559-9126 |
|---|---|
| Item name | Hexagon Self-Locking Nut |
| Part number (commercial reference) | M45913/1-6FS6 |
| Alternate references | MIL-DTL-45913/1B |
| Unit of issue | EA |
| NIIN | 015599126 |
| NIIN assigned by | United States (NCB code 01) |
| Federal Supply Class (FSC) | 5310 — Nuts and Washers |
| Federal Supply Group (FSG) | 53 — Hardware and Abrasives |
| Unit price (USD) | $13.14 |
| 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 |
Internally threaded fasteners (hex nuts, lock nuts, castle nuts, wing nuts, self-locking nuts) and washers (flat, lock, spring, and special washers) used to distribute load and secure threaded assemblies.
Price in context. Across the 1,144 items we currently stock in FSC 5310 (Nuts and Washers), published unit prices run from $0.12 to $68,673.00. At $13.14, this item sits above the class median of $8.76.
Stock activity. This item has appeared once in our supplier stock feed, most recently listed 2026-08-12, with a lot quantity of 99 units. Listing activity is a practical signal of ongoing availability; confirm current stock and firm pricing on your quote.
Typical applications. Paired with screws, bolts, and studs across every mechanical assembly; washers used for load distribution, spacing, and vibration resistance.
Applicable standards. ASME B18.2.2 / B18.16, B18.21 / B18.22, NASM/MS series; steel, stainless, and self-locking (nylon-insert and all-metal) designs.
NSN 5310-01-559-9126 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.
93776A441
MS17830-4F316
111-5486612 ITEM 077
H54657-9
AEW07X19R000SE4A31
5710-476-30-P
MS14183L-3
NAS1792A3-6
NAS1515B9L
MS35650-3395S
12520314
J2295F467C2R12-NU
