The Pin-Rivet, cataloged under National Stock Number 5320-01-300-3213, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Asc International, Inc. Dba Asc International Inc Div Asc International. Government technical data includes 4 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-300-3213 |
| Primary Part Number | HL21-8-16 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Asc International, Inc. Dba Asc International Inc Div Asc International |
| Status | ACTIVE |
| Head Style | FLUSH COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Grip Length | 1.000 INCHES NOMINAL IN |
| Material | STEEL OVERALL |
| 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 |
|---|---|
| HL21-8-16 | Hi-Shear Corporation (USA) |
| HL21-8-16 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL21-8-16 | Huck International, Inc (USA) |
| HL21-8-16 PRIMARY | Asc International, Inc. Dba Asc International Inc Div Asc International (USA) |
| Reference | Meaning |
|---|---|
| HL21-8-16 | 5/2 Secondary reference U.S. Government activity |
| HL21-8-16 | 5/9 Secondary reference U.S. Government activity |
NSN 5320-01-300-3213 is a Pin-Rivet, manufactured by Asc International, Inc. Dba Asc International Inc Div Asc International, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-300-3213 has 4 manufacturer part numbers on file: HL21-8-16 (Hi-Shear Corporation), HL21-8-16 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL21-8-16 (Huck International, Inc), HL21-8-16 (Asc International, Inc. Dba Asc International Inc Div Asc International).
Key specifications for HL21-8-16: Head Style: FLUSH COUNTERSUNK; Thread Direction: RIGHT-HAND; Grip Length: 1.000 INCHES NOMINAL IN; Material: STEEL OVERALL. 4 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.