The Pin-Rivet, cataloged under National Stock Number 5320-01-696-8355, 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 19 specifications, cited from the U.S. Government catalog. The record lists 8 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-696-8355 |
| Primary Part Number | HL646LL-18-22 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.5605 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN |
| Fastener Length | 2.135 INCHES MINIMUM AND 2.165 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | HI-SHEAR SPEC. 262 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | STRAIGHT PAN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Grip Length | 1.370 INCHES MINIMUM AND 1.380 INCHES MAXIMUM IN |
| Width Between Flats | 0.2520 INCHES MINIMUM AND 0.2555 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Shear Strength | 62100 DOUBLE POUNDS PER SQUARE INCH |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 18 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.842 INCHES MINIMUM AND 0.877 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 |
|---|---|
| HL646LL-18-22 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| HL646LL-18-22 | West Coast Aerospace, Inc. (USA) |
| HL646LL-18-22 | Sps Technologies Ltd, Tj Brooks Division (GBR) |
| HL646LL-18-22 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| HL646LL-18-22 PRIMARY | Hi-Shear Corporation (USA) |
| HL646LL-18-22 | Huck International, Inc (USA) |
| HL646LL-18-22 | Blanc Aero Industries - Groupe Lisi Aerospace (FRA) |
| HL646LL-18-22 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| HL646 | D/9 Drawing number reference only Hi-Shear Corporation |
NSN 5320-01-696-8355 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-696-8355 has 8 manufacturer part numbers on file: HL646LL-18-22 (Howmet Global Fastening Systems Inc Div City of Industry Operations), HL646LL-18-22 (West Coast Aerospace, Inc.), HL646LL-18-22 (Sps Technologies Ltd, Tj Brooks Division), HL646LL-18-22 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), HL646LL-18-22 (Hi-Shear Corporation) and 3 more.
Key specifications for HL646LL-18-22: Shank Diameter: 0.5605 INCHES MINIMUM AND 0.5615 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.200 INCHES MINIMUM AND 0.210 INCHES MAXIMUM IN; Fastener Length: 2.135 INCHES MINIMUM AND 2.165 INCHES MAXIMUM IN. 19 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.