The Pin-Rivet, cataloged under National Stock Number 5320-01-591-2929, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company. Government technical data includes 14 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-591-2929 |
| Primary Part Number | HL646-10-16 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company |
| Status | ACTIVE |
| Shank Diameter | 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN |
| Lubrication | SOLID FILM |
| Head Height | 0.102 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN |
| Fastener Length | 1.490 INCHES MINIMUM AND 1.510 INCHES MAXIMUM IN |
| Head Style | STRAIGHT PAN |
| Nominal Thread Size | 0.312 INCHES IN |
| Grip Length | 0.995 INCHES MINIMUM AND 1.005 INCHES MAXIMUM IN |
| Width Between Flats | 0.127 INCHES MINIMUM AND 0.129 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| 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 |
|---|---|
| HL646-10-16 | Howmet Global Fastening Systems Inc (USA) |
| HL646-10-16 PRIMARY | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| HL646-10-16 | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| HL646-10-16 | 7/2 Vendor item drawing reference Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc |
| HL646-10-16 | 7/2 Vendor item drawing reference Hi-Shear Corporation |
NSN 5320-01-591-2929 is a Pin-Rivet, manufactured by Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-591-2929 has 3 manufacturer part numbers on file: HL646-10-16 (Howmet Global Fastening Systems Inc), HL646-10-16 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), HL646-10-16 (West Coast Aerospace, Inc.).
Key specifications for HL646-10-16: Shank Diameter: 0.311 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN; Lubrication: SOLID FILM; Head Height: 0.102 INCHES MINIMUM AND 0.112 INCHES MAXIMUM IN; Fastener Length: 1.490 INCHES MINIMUM AND 1.510 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.