The Pin-Rivet, cataloged under National Stock Number 5320-01-716-9925, 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 18 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-716-9925 |
| Primary Part Number | HL646LL10-8 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.3020 INCHES MINIMUM AND 0.3060 INCHES MAXIMUM IN |
| Lubrication | CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP |
| Head Height | 0.102 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN |
| Fastener Length | 0.99 INCHES MINIMUM AND 1.01 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | SPEC 262 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS5629 NATIONAL STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | STRAIGHT PAN |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.3125 INCHES IN |
| Grip Length | 0.495 INCHES MINIMUM AND 0.505 INCHES MAXIMUM IN |
| Width Between Flats | 0.1270 INCHES MINIMUM AND 0.1295 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 24 |
| Material | STEEL COMP XM-13 OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.475 INCHES MINIMUM AND 0.505 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 |
|---|---|
| HL646LL10-8 | West Coast Aerospace, Inc. (USA) |
| HL646LL10-8 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL646LL10-8 | Huck International, Inc (USA) |
| HL646LL10-8 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| HL646LL10-8 | Howmet Global Fastening Systems Inc Div City of Industry Operations (USA) |
| HL646LL10-8 PRIMARY | Hi-Shear Corporation (USA) |
| Reference | Meaning |
|---|---|
| HL646 | D/9 Drawing number reference only Hi-Shear Corporation |
NSN 5320-01-716-9925 is a Pin-Rivet, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-716-9925 has 6 manufacturer part numbers on file: HL646LL10-8 (West Coast Aerospace, Inc.), HL646LL10-8 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL646LL10-8 (Huck International, Inc), HL646LL10-8 (Sps Technologies, Llc Dba PB Fasteners), HL646LL10-8 (Howmet Global Fastening Systems Inc Div City of Industry Operations) and 1 more.
Key specifications for HL646LL10-8: Shank Diameter: 0.3020 INCHES MINIMUM AND 0.3060 INCHES MAXIMUM IN; Lubrication: CETYL ALCOHOL, SPEC 305, HI-SHEAR CORP; Head Height: 0.102 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN; Fastener Length: 0.99 INCHES MINIMUM AND 1.01 INCHES MAXIMUM IN. 18 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.