The Rivet,blind, cataloged under National Stock Number 5320-01-381-1446, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-381-1446 |
| Primary Part Number | ST3M790-4-9 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.2580 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN |
| Lubrication | CARBO WAX OR CETYL ALCOHOL OR DRY FILM |
| Width Across Flats | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Head Height | 0.135 INCHES MAXIMUM IN |
| Expansion Device | SERRATED STEM-TYPE W |
| Material Document and Classification | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Head Style | HEXAGON |
| Grip Length | 0.532 INCHES MINIMUM AND 0.594 INCHES MAXIMUM IN |
| Shank Style | THREADED SELF-PLUGGING SHANK W/SLEEVE |
| Shear Strength | 7900 DOUBLE POUNDS PER SQUARE INCH |
| Material | STEEL COMP 304 SLEEVE |
| Material | TITANIUM ALLOY UNS R56400 NUT |
| 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 |
|---|---|
| BL7-4-9 | Hi-Shear Corporation (USA) |
| ST3M790-4-9 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| ST3M790-4-9 PRIMARY | The Boeing Company Div Defense (USA) |
| BL7-4-9 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| PLT270-8-9 | 5/2 Secondary reference U.S. Government activity |
| PLT270-8-9 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-381-1446 is a Rivet,blind, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-381-1446 has 4 manufacturer part numbers on file: BL7-4-9 (Hi-Shear Corporation), ST3M790-4-9 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), ST3M790-4-9 (The Boeing Company Div Defense), BL7-4-9 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for ST3M790-4-9: Shank Diameter: 0.2580 INCHES MINIMUM AND 0.2600 INCHES MAXIMUM IN; Lubrication: CARBO WAX OR CETYL ALCOHOL OR DRY FILM; Width Across Flats: 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Head Height: 0.135 INCHES MAXIMUM IN. 12 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.