The Pin-Rivet, cataloged under National Stock Number 5320-01-552-4573, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is West Coast Aerospace, Inc.. Government technical data includes 5 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-552-4573 |
| Primary Part Number | HL646-6-14 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | West Coast Aerospace, Inc. |
| Status | ACTIVE |
| Nominal Thread Size | 0.190 INCHES IN |
| Grip Length | 0.875 INCHES NOMINAL IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| 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 |
|---|---|
| HL646-6-14 PRIMARY | West Coast Aerospace, Inc. (USA) |
| HL646-6-14 PRIMARY | Huck International, Inc (USA) |
| HL646-6-14 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL646-6-14 PRIMARY | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HL646-6-14 | 7/2 Vendor item drawing reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| HL646-6-14 | 5/9 Secondary reference Sps Technologies, Llc Dba Cherry Aerospace Div Div Cherry Aerospace |
| HL646-6-14 | 3/2 Design control — primary reference U.S. Government activity |
| HL646-6-14 | 7/2 Vendor item drawing reference Hi-Shear Corporation |
NSN 5320-01-552-4573 is a Pin-Rivet, manufactured by West Coast Aerospace, Inc., classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-552-4573 has 4 manufacturer part numbers on file: HL646-6-14 (West Coast Aerospace, Inc.), HL646-6-14 (Huck International, Inc), HL646-6-14 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL646-6-14 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for HL646-6-14: Nominal Thread Size: 0.190 INCHES IN; Grip Length: 0.875 INCHES NOMINAL IN; Shank Style: PIN-RIVET, STRAIGHT, THREADED; Part Name Assigned by Controlling Agency: RIVET,PIN. 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.