The Rivet,blind, cataloged under National Stock Number 5320-01-030-4706, 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 18 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-030-4706 |
| Primary Part Number | BB166-8-21 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.255 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN |
| Fastener Length | 1.625 INCHES NOMINAL IN |
| Expansion Device | THREADED MANDREL |
| Material Document and Classification | QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE SLEEVE |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE EXPANDER |
| Material Document and Classification | AMS 5628 ASSN STD SINGLE MATERIAL RESPONSE BOLT |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.164 INCHES IN |
| Grip Length | 1.250 INCHES MINIMUM AND 1.343 INCHES MAXIMUM IN |
| Shank Style | BLIND RIVET, NUT AND BOLT (ASSEMBLY) |
| Thread Class | 2A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 305 SLEEVE |
| Material | STEEL COMP 431 BOLT |
| Material | STEEL COMP XM-13 EXPANDER |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Head Major Diameter | 0.304 INCHES NOMINAL 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 |
|---|---|
| BB166-8-21 PRIMARY | Hi-Shear Corporation (USA) |
| 3M162A8-21 | The Boeing Company Div Defense (USA) |
NSN 5320-01-030-4706 is a Rivet,blind, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-030-4706 has 2 manufacturer part numbers on file: BB166-8-21 (Hi-Shear Corporation), 3M162A8-21 (The Boeing Company Div Defense).
Key specifications for BB166-8-21: Shank Diameter: 0.255 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN; Fastener Length: 1.625 INCHES NOMINAL IN; Expansion Device: THREADED MANDREL; Material Document and Classification: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE SLEEVE. 18 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.