The Pin-Rivet, cataloged under National Stock Number 5320-01-643-5270, 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 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-643-5270 |
| Primary Part Number | HLT252DL-8-20 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM IN |
| Head Height | 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN |
| Fastener Length | 1.685 INCHES NOMINAL IN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 1.250 INCHES NOMINAL IN |
| Width Between Flats | 0.094 INCHES MINIMUM AND 0.096 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.435 INCHES MINIMUM AND 0.460 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 |
|---|---|
| HLT252DL-8-20 | West Coast Aerospace, Inc. (USA) |
| HLT252DL-8-20 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HLT252DL-8-20 PRIMARY | Hi-Shear Corporation (USA) |
NSN 5320-01-643-5270 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-643-5270 has 3 manufacturer part numbers on file: HLT252DL-8-20 (West Coast Aerospace, Inc.), HLT252DL-8-20 (Sps Technologies, Llc Dba PB Fasteners), HLT252DL-8-20 (Hi-Shear Corporation).
1 possible match (shared part number, not a government interchangeability claim): 5320-01-645-5071. Verify interchangeability with system specifications before substitution.
Key specifications for HLT252DL-8-20: Shank Diameter: 0.2802 INCHES MINIMUM AND 0.2807 INCHES MAXIMUM IN; Head Height: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Fastener Length: 1.685 INCHES NOMINAL IN; Thread Direction: RIGHT-HAND. 13 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.