The Rivet,blind, cataloged under National Stock Number 5320-01-133-2231, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-133-2231 |
| Primary Part Number | ST3M790-4-5 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.258 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Lubrication | DRY FILM OR GREASE FILM OR WAX OR CETYL ALCOHOL |
| Width Across Flats | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Head Height | 0.135 INCHES MAXIMUM IN |
| Expansion Device | THREADED STEM |
| Material Document and Classification | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Material Document and Classification | AMS 4928 ASSN STD SINGLE MATERIAL RESPONSE BOLT |
| Head Style | HEXAGON |
| Grip Length | 0.282 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Shank Style | THREADED SELF-PLUGGING SHANK W/SLEEVE |
| Material | TITANIUM ALLOY UNS R56400 NUT |
| Material | TITANIUM ALLOY UNS R56400 BOLT |
| Material | STEEL COMP 304 OR IRON ALLOY 660 OR STEEL COMP 304L SLEEVE |
| 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 |
|---|---|
| ST3M790-4-5 PRIMARY | Hi-Shear Corporation (USA) |
| ST3M790-4-5 PRIMARY | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| ST3M790-4-5 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| 10111494 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| BL7-4-5 | 5/9 Secondary reference Hi-Shear Corporation |
| ST3M790-4-5 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| BL270-8-5 | 5/9 Secondary reference Hi-Shear Corporation |
| PLT270-8-5 | 5/9 Secondary reference U.S. Government activity |
| PLT270-8-5 | 5/9 Secondary reference U.S. Government activity |
| ST3M790-4-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-133-2231 is a Rivet,blind, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-133-2231 has 3 manufacturer part numbers on file: ST3M790-4-5 (Hi-Shear Corporation), ST3M790-4-5 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), ST3M790-4-5 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for ST3M790-4-5: Shank Diameter: 0.258 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Lubrication: DRY FILM OR GREASE FILM OR WAX OR CETYL ALCOHOL; Width Across Flats: 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Head Height: 0.135 INCHES MAXIMUM IN. 13 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.