The Rivet,blind, cataloged under National Stock Number 5320-00-765-3832, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-765-3832 |
| Primary Part Number | BB321-8-4 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| Status | ACTIVE |
| Shank Diameter | 0.163 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN |
| Head Height | 0.103 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN |
| Fastener Length | 0.555 INCHES MINIMUM AND 0.575 INCHES MAXIMUM IN |
| Expansion Device | THREADED STEM |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Grip Length | 0.250 INCHES NOMINAL IN |
| Shank Style | PULL THROUGH HOLLOW SHANK |
| Surface Treatment | PASSIVATE OVERALL |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Material | STEEL COMP 305 OVERALL |
| Head Major Diameter | 0.502 INCHES MINIMUM AND 0.507 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 |
|---|---|
| GS530B8-4 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| BB321-8-4 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| GS530B8-4 | Hi-Shear Corporation (USA) |
| BB321-8-4 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| GS530B8-4 | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5320-00-765-3832 is a Rivet,blind, manufactured by Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-765-3832 has 4 manufacturer part numbers on file: GS530B8-4 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), BB321-8-4 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), GS530B8-4 (Hi-Shear Corporation), BB321-8-4 (Hi-Shear Corporation).
Key specifications for BB321-8-4: Shank Diameter: 0.163 INCHES MINIMUM AND 0.165 INCHES MAXIMUM IN; Head Height: 0.103 INCHES MINIMUM AND 0.105 INCHES MAXIMUM IN; Fastener Length: 0.555 INCHES MINIMUM AND 0.575 INCHES MAXIMUM IN; Expansion Device: THREADED STEM. 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.