The Collar,pin-Rivet, cataloged under National Stock Number 5320-01-683-2874, 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 6 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-683-2874 |
| Primary Part Number | HL645LL-8-17 |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Nominal Thread Size | 0.2500 INCHES IN |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 28 |
| Material | STEEL OVERALL |
| Thread Series Designator | UNJC |
| 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 |
|---|---|
| HL645LL-8-17 PRIMARY | Hi-Shear Corporation (USA) |
| HL645LL-8-17 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL645LL-8-17 | West Coast Aerospace, Inc. (USA) |
| HL645LL-8-17 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL645LL-8-17 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL645LL-8-17 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| HL645LL-8-17 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-683-2874 is a Collar,pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-683-2874 has 6 manufacturer part numbers on file: HL645LL-8-17 (Hi-Shear Corporation), HL645LL-8-17 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL645LL-8-17 (West Coast Aerospace, Inc.), HL645LL-8-17 (Sps Technologies, Llc Dba PB Fasteners), HL645LL-8-17 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company) and 1 more.
Key specifications for HL645LL-8-17: Collar Style: THREADED (BREAK OFF) TYPE; Nominal Thread Size: 0.2500 INCHES IN; Part Name Assigned by Controlling Agency: HI-LOK PIN 100* FLUSH SHEAR HEAD; Thread Class: 3A A. 6 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.