The Rivet,blind, cataloged under National Stock Number 5320-00-159-8223, 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 17 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-00-159-8223 |
| Primary Part Number | BN525-428-4 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.387 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN |
| Lubrication | SOLID FILM |
| Expansion Device | EXPANDER |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE EXPANDER |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE SLEEVE |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 0.750 INCHES MAXIMUM IN |
| Shank Style | BLIND RIVET, NUT AND BOLT (ASSEMBLY) |
| Countersink Angle | 102.0 DEGREES MAXIMUM |
| Thread Class | 3B |
| Thread Quantity Per Inch | 20 |
| Material | IRON ALLOY 660 EXPANDER |
| Material | STEEL COMP 305 SLEEVE |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Major Diameter | 0.450 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 |
|---|---|
| BN525-428-4 PRIMARY | Hi-Shear Corporation (USA) |
| BN525-428-4 | West Coast Aerospace, Inc. (USA) |
| BN525-428-4 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| Reference | Meaning |
|---|---|
| 860598-52 | C/1 Advisory reference — outside the item-of-supply concept Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp |
| 860598-52 | 5/9 Secondary reference Litton Systems Inc. Div Navigation Systems Division |
NSN 5320-00-159-8223 is a Rivet,blind, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-00-159-8223 has 3 manufacturer part numbers on file: BN525-428-4 (Hi-Shear Corporation), BN525-428-4 (West Coast Aerospace, Inc.), BN525-428-4 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc).
Key specifications for BN525-428-4: Shank Diameter: 0.387 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Lubrication: SOLID FILM; Expansion Device: EXPANDER; Material Document and Classification: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE EXPANDER. 17 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.