The Rivet,blind, cataloged under National Stock Number 5320-01-590-2108, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Leonardo Spa Helicopters Division - Production Site. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-590-2108 |
| Primary Part Number | NAS1720C4L5P |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Leonardo Spa Helicopters Division - Production Site |
| Status | ACTIVE |
| Shank Diameter | 0.172 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN |
| Lubrication | DRY FILM |
| Head Height | 0.067 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN |
| Expansion Device | THREADED STEM |
| Head Style | UNIVERSAL |
| Grip Length | 0.234 INCHES MINIMUM AND 0.328 INCHES MAXIMUM IN |
| Shank Style | SELF-PLUGGING HIGH CLINCH SHANK |
| Surface Treatment | PASSIVATE OVERALL |
| Material | IRON ALLOY 660 STEM |
| Material | IRON ALLOY 660 SLEEVE |
| Head Major Diameter | 0.307 INCHES MINIMUM AND 0.317 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| NAS1720C4L5P | Leonardo Spa Helicopters Division - Production Site (ITA) |
| Reference | Meaning |
|---|---|
| NAS1720C4L5P | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-590-2108 is a Rivet,blind, manufactured by Leonardo Spa Helicopters Division - Production Site, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-590-2108 has 1 manufacturer part number on file: NAS1720C4L5P (Leonardo Spa Helicopters Division - Production Site).
Key specifications for NAS1720C4L5P: Shank Diameter: 0.172 INCHES MINIMUM AND 0.177 INCHES MAXIMUM IN; Lubrication: DRY FILM; Head Height: 0.067 INCHES MINIMUM AND 0.072 INCHES MAXIMUM IN; Expansion Device: THREADED STEM. 11 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.