Part Number
Blind Rivet · NAS (National Aerospace Standard) · NSN 5320-01-528-3868
| Part number | NAS1921C04S03U |
|---|---|
| Specification family | NAS (National Aerospace Standard) |
| Item name | Blind Rivet |
| Unit of issue | EA |
| Cross-referenced NSN | 5320-01-528-3868 |
| Federal Supply Class (FSC) | 5320 — Rivets |
| Unit price (USD) | $4.38 |
| 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 |
Characteristics decoded from the federal cataloging record for this blind rivet. Confirm controlling dimensions against your drawing or standard sheet before ordering.
| Fastener Length | 0.323 Inches Maximum |
|---|---|
| Head Style | Flush (Flat) Countersunk (Included Angle - Less Than 135 Deg W Or W/O Chamfer) |
| Material | Iron Alloy 660 Or Steel Comp 316 Locking Ring |
| Material | Iron Alloy 660 Sleeve |
| Material | Iron Alloy 660 Stem |
| Surface Treatment | Passivate Or Cadmium Or Aluminum Alloy Sleeve |
| Surface Treatment | Passivate Locking Ring |
| Surface Treatment | Passivate Stem |
Permanent mechanical fasteners installed by deforming, including solid, blind (pop), and structural rivets in a range of head styles.
Reading the part number. NAS1921C04S03U breaks down as NAS1921 — the National Aerospace Standard that fixes the part's design — plus the dash/suffix code C04S03U, which selects the exact size, material, or finish variant from the tables on that standard. Two parts sharing the NAS1921 base are the same design in different variants.
Price in context. Across the 607 items we currently stock in FSC 5320 (Rivets), published unit prices run from $0.18 to $700.92. At $4.38, this item sits below the class median of $6.13.
Stock activity. This item has appeared once in our supplier stock feed, most recently listed 2026-07-10, with a lot quantity of 2,773 units. Listing activity is a practical signal of ongoing availability; confirm current stock and firm pricing on your quote.
Who orders NAS1921C04S03U. Aircraft owners and MRO shops replacing standard hardware, machine shops and OEMs filling a bill of materials, and government contractors sourcing against NSN 5320-01-528-3868. You can order by part number or by stock number — it is the same item, the same published price, and the same quote form.
Applicable standards. MS20426/MS20470 and NAS series, ISO/DIN blind rivets; aluminum, monel, steel, and stainless.
Need this part modified, or a similar part made to your print? See our U.S.-based CNC machining services and aerospace machining capability.
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.
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