The Rivet,blind, cataloged under National Stock Number 5320-01-475-9774, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Huck International, Inc. Government technical data includes 12 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5320-01-475-9774 |
| Primary Part Number | NAS1921C04S04 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck International, Inc |
| Status | ACTIVE |
| Shank Diameter | 0.125 INCHES NOMINAL IN |
| Fastener Length | 0.398 INCHES MAXIMUM IN |
| Expansion Device | SERRATED STEM-TYPE W |
| Material Document and Classification | AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Grip Length | 0.188 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN |
| Shank Style | SELF-PLUGGING MECHANICALLY LOCKED STEM |
| Surface Treatment | PASSIVATE OR CADMIUM SLEEVE |
| Surface Treatment | PASSIVATE LOCKING RING |
| Countersink Angle | 100.0 DEGREES NOMINAL |
| Material | IRON ALLOY 660 OVERALL |
| Head Major Diameter | 0.225 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 |
| Part Number | Manufacturer |
|---|---|
| NAS1921C04S04 | Huck International, Inc (USA) |
| Reference | Meaning |
|---|---|
| NAS1921C04S04 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-475-9774 is a Rivet,blind, manufactured by Huck International, Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-475-9774 has 1 manufacturer part number on file: NAS1921C04S04 (Huck International, Inc).
Key specifications for NAS1921C04S04: Shank Diameter: 0.125 INCHES NOMINAL IN; Fastener Length: 0.398 INCHES MAXIMUM IN; Expansion Device: SERRATED STEM-TYPE W; Material Document and Classification: AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 12 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.