The Rivet,blind, cataloged under National Stock Number 5320-01-644-1778, 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 11 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-644-1778 |
| Primary Part Number | HL746LL-8-11 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.2646 INCHES NOMINAL IN |
| Head Height | 0.085 INCHES NOMINAL IN |
| Features Provided | DRIVE NUT |
| Head Style | UNIVERSAL |
| Nominal Thread Size | 0.25 INCHES IN |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING HEAD |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.428 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 |
|---|---|
| HL746LL-8-11 PRIMARY | Hi-Shear Corporation (USA) |
| HL746LL-8-11 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL746LL-8-11 | West Coast Aerospace, Inc. (USA) |
| HL746LL-8-11 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL746LL-8-11 | Huck International, Inc (USA) |
| HL746LL-8-11 | Sps Technologies, Llc Dba PB Fasteners (USA) |
NSN 5320-01-644-1778 is a Rivet,blind, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-644-1778 has 6 manufacturer part numbers on file: HL746LL-8-11 (Hi-Shear Corporation), HL746LL-8-11 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL746LL-8-11 (West Coast Aerospace, Inc.), HL746LL-8-11 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL746LL-8-11 (Huck International, Inc) and 1 more.
Key specifications for HL746LL-8-11: Shank Diameter: 0.2646 INCHES NOMINAL IN; Head Height: 0.085 INCHES NOMINAL IN; Features Provided: DRIVE NUT; Head Style: UNIVERSAL. 11 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.