The Collar,pin-Rivet, cataloged under National Stock Number 5320-01-643-3525, 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 14 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through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-643-3525 |
| Primary Part Number | HL273YL-6 |
| Item Name | Collar,pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Lubrication | SOLID FILM |
| Identification Code Color | YELLOW |
| Collar Inside Diameter | 0.208 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN |
| Collar Overall Height | 0.437 INCHES MINIMUM AND 0.457 INCHES MAXIMUM IN |
| Collar Style | THREADED (BREAK OFF) TYPE |
| Collar Outside Diameter | 0.318 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN |
| Heat Treatment | H-1025 STRAIN HARDENED OVERALL |
| Material Document and Classification | AMS 5643 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.1900 INCHES IN |
| Thread Class | 32 |
| Thread Quantity Per Inch | 3B |
| Material | STEEL CORROSION RESISTING 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 |
|---|---|
| HL273YL-6 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL273YL-6 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| HL273YL-6 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL273DY-6 | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| HL273YL-6 PRIMARY | Hi-Shear Corporation (USA) |
| HL273YL-6 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HL273DY-6 | 5/9 Secondary reference Sps Technologies, Llc Dba PB Fasteners |
| HL273DY-6 | 5/9 Secondary reference West Coast Aerospace, Inc. |
| HL273DY-6 | 5/9 Secondary reference Hi-Shear Corporation |
| HL273DY-6 | 5/9 Secondary reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| HL273DY-6 | 5/9 Secondary reference U.S. Government activity |
| HL273DY-6 | 5/9 Secondary reference Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
NSN 5320-01-643-3525 is a Collar,pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-643-3525 has 6 manufacturer part numbers on file: HL273YL-6 (Sps Technologies, Llc Dba PB Fasteners), HL273YL-6 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), HL273YL-6 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL273DY-6 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products), HL273YL-6 (Hi-Shear Corporation) and 1 more.
Key specifications for HL273YL-6: Lubrication: SOLID FILM; Identification Code Color: YELLOW; Collar Inside Diameter: 0.208 INCHES MINIMUM AND 0.212 INCHES MAXIMUM IN; Collar Overall Height: 0.437 INCHES MINIMUM AND 0.457 INCHES MAXIMUM IN. 14 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.