The Rivet,blind, cataloged under National Stock Number 5320-01-681-5544, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc Div City of Industry Operations. Government technical data includes 8 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-681-5544 |
| Primary Part Number | AB6-4AC |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Howmet Global Fastening Systems Inc Div City of Industry Operations |
| Status | ACTIVE |
| Shank Diameter | 0.1875 INCHES NOMINAL IN |
| Head Height | 0.080 INCHES NOMINAL IN |
| Fastener Length | 0.531 INCHES NOMINAL IN |
| Head Style | BUTTON |
| Grip Length | 0.126 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Shank Style | STRAIGHT |
| Material | ALUMINUM OVERALL |
| Head Major Diameter | 0.374 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
NSN 5320-01-681-5544 is a Rivet,blind, manufactured by Howmet Global Fastening Systems Inc Div City of Industry Operations, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-681-5544 has 2 manufacturer part numbers on file: 127791 (Weatherhaven Global Resources), AB6-4AC (Howmet Global Fastening Systems Inc Div City of Industry Operations).
Key specifications for AB6-4AC: Shank Diameter: 0.1875 INCHES NOMINAL IN; Head Height: 0.080 INCHES NOMINAL IN; Fastener Length: 0.531 INCHES NOMINAL IN; Head Style: BUTTON. 8 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.