The Pin-Rivet, cataloged under National Stock Number 5320-01-046-3337, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. Government technical data includes 11 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-046-3337 |
| Primary Part Number | ST3M428C6-31 |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Shank Diameter | 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN |
| Head Height | 0.044 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN |
| Fastener Length | 2.202 INCHES MAXIMUM IN |
| Material Document and Classification | AMS 5737 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5732 ASSN STD 2ND MATERIAL RESPONSE OVERALL |
| Head Style | STRAIGHT PAN |
| Grip Length | 1.876 INCHES MINIMUM AND 1.938 INCHES MAXIMUM IN |
| Shank Style | STUMP |
| Surface Treatment | PASSIVATE OVERALL |
| Shear Strength | 95000 SINGLE POUNDS PER SQUARE INCH |
| Material | IRON ALLOY 660 OVERALL |
| Head Major Diameter | 0.288 INCHES MINIMUM AND 0.302 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 |
|---|---|
| SLSPCTEU6-31 | Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company (USA) |
| ST3M428C6-31 PRIMARY | The Boeing Company Div Defense (USA) |
| SLSPCT-EU06-31 | Huck International, Inc (USA) |
| SLSPCT-EU6-31 | Sps Technologies, Llc Dba PB Fasteners (USA) |
| Reference | Meaning |
|---|---|
| SLSPCT-EU6-31 | 5/9 Secondary reference Huck Mfg Co |
| SLSPCT-EU6-31 | 5/9 Secondary reference U.S. Government activity |
| SLSPCT-EU6-31 | 5/2 Secondary reference U.S. Government activity |
NSN 5320-01-046-3337 is a Pin-Rivet, manufactured by The Boeing Company Div Defense, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-046-3337 has 4 manufacturer part numbers on file: SLSPCTEU6-31 (Sps Technologies, Llc Dba Air Industries Company Div Air Industries Company), ST3M428C6-31 (The Boeing Company Div Defense), SLSPCT-EU06-31 (Huck International, Inc), SLSPCT-EU6-31 (Sps Technologies, Llc Dba PB Fasteners).
Key specifications for ST3M428C6-31: Shank Diameter: 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM IN; Head Height: 0.044 INCHES MINIMUM AND 0.056 INCHES MAXIMUM IN; Fastener Length: 2.202 INCHES MAXIMUM IN; Material Document and Classification: AMS 5737 ASSN STD 1ST MATERIAL RESPONSE OR AMS 5732 ASSN STD 2ND MATERIAL RESPONSE OVERALL. 11 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.