The Collar,pin-Rivet, cataloged under National Stock Number 5320-01-660-3322, 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 5 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-660-3322 |
| Primary Part Number | HL373DU-6 |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Collar Inside Diameter | 2.27 MILLIMETERS NOMINAL MM |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Collar Outside Diameter | 3.32 MILLIMETERS NOMINAL MM |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| 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 |
|---|---|
| HL373DU-6 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL373DU-6 | Huck International, Inc (USA) |
| HL373DU-6 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL373DU-6 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL373DU-6 PRIMARY | Hi-Shear Corporation (USA) |
| HL373DU-6 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HL373DU-6 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-660-3322 is a Collar,pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-660-3322 has 6 manufacturer part numbers on file: HL373DU-6 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL373DU-6 (Huck International, Inc), HL373DU-6 (Sps Technologies, Llc Dba PB Fasteners), HL373DU-6 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL373DU-6 (Hi-Shear Corporation) and 1 more.
Key specifications for HL373DU-6: Collar Inside Diameter: 2.27 MILLIMETERS NOMINAL MM; Collar Style: THREADED (BREAK OFF) TYPE; Collar Outside Diameter: 3.32 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: HI-LOK COLLAR. 5 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.