The Pin-Rivet, cataloged under National Stock Number 5320-01-421-0309, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-421-0309 |
| Primary Part Number | HLT50YB-16-9 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.499 INCHES NOMINAL IN |
| Head Height | 0.103 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN |
| Fastener Length | 1.217 INCHES MAXIMUM IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Grip Length | 0.562 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 20 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.735 INCHES MINIMUM AND 0.770 INCHES MAXIMUM 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 |
|---|---|
| HLT50YB-16-9 PRIMARY | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HLT50YB-16-9 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5320-01-421-0309 is a Pin-Rivet, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-421-0309 has 1 manufacturer part number on file: HLT50YB-16-9 (Huck International, Inc).
Key specifications for HLT50YB-16-9: Shank Diameter: 0.499 INCHES NOMINAL IN; Head Height: 0.103 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN; Fastener Length: 1.217 INCHES MAXIMUM IN; Thread Direction: RIGHT-HAND. 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.