The Rivet,blind, cataloged under National Stock Number 5320-01-129-7644, 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-129-7644 |
| Primary Part Number | BL7-3-11 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.197 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL OR DRY FILM OR GREASE FILM OR WAX |
| Width Across Flats | 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Head Height | 0.113 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 STEM |
| Head Style | HEXAGON |
| Grip Length | 0.657 INCHES MINIMUM AND 0.719 INCHES MAXIMUM IN |
| Shank Style | THREADED SELF-PLUGGING SHANK W/SLEEVE |
| Material | STEEL COMP 304 OR STEEL COMP 304L OR IRON ALLOY 660 SLEEVE |
| Material | TITANIUM ALLOY UNS R56400 STEM |
| 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 |
|---|---|
| BL7-3-11 PRIMARY | Hi-Shear Corporation (USA) |
| BL7-3-11 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M790-3-11 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| Reference | Meaning |
|---|---|
| ST3M790-3-11 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| PLT270-6-11 | 5/2 Secondary reference U.S. Government activity |
| PLT270-6-11 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-129-7644 is a Rivet,blind, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-129-7644 has 3 manufacturer part numbers on file: BL7-3-11 (Hi-Shear Corporation), BL7-3-11 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M790-3-11 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products).
Key specifications for BL7-3-11: Shank Diameter: 0.197 INCHES MINIMUM AND 0.199 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL OR DRY FILM OR GREASE FILM OR WAX; Width Across Flats: 0.305 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Head Height: 0.113 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.