The Pin-Rivet, cataloged under National Stock Number 5320-01-561-4052, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-561-4052 |
| Primary Part Number | EL3401NF6-9A |
| Item Name | Pin-Rivet |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Howmet Global Fastening Systems Inc |
| Status | ACTIVE |
| Shank Diameter | 0.189 INCHES NOMINAL IN |
| Fastener Length | 0.857 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN |
| Head Style | FLUSH COUNTERSUNK |
| Nominal Thread Size | 0.190 INCHES IN |
| Grip Length | 0.557 INCHES MINIMUM AND 0.567 INCHES MAXIMUM IN |
| Width Between Flats | 0.079 INCHES MINIMUM AND 0.080 INCHES MAXIMUM IN |
| Shank Style | PIN-RIVET, STRAIGHT, THREADED |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | 3A A |
| Thread Quantity Per Inch | 32 |
| Material | STEEL CORROSION RESISTING OVERALL |
| Thread Series Designator | UNIFIED NATIONAL JOINT FINE (UNJF) |
| Head Major Diameter | 0.372 INCHES MINIMUM AND 0.381 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 |
|---|---|
| EL3401NF6-9A PRIMARY | Howmet Global Fastening Systems Inc (USA) |
| WC1245C-6L9 PRIMARY | West Coast Aerospace, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 3M1245C3L9A | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
NSN 5320-01-561-4052 is a Pin-Rivet, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-561-4052 has 2 manufacturer part numbers on file: EL3401NF6-9A (Howmet Global Fastening Systems Inc), WC1245C-6L9 (West Coast Aerospace, Inc.).
Key specifications for EL3401NF6-9A: Shank Diameter: 0.189 INCHES NOMINAL IN; Fastener Length: 0.857 INCHES MINIMUM AND 0.877 INCHES MAXIMUM IN; Head Style: FLUSH COUNTERSUNK; Nominal Thread Size: 0.190 INCHES IN. 13 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.