The Rivet,blind, cataloged under National Stock Number 5320-01-527-0221, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. Government technical data includes 14 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-527-0221 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Status | ACTIVE |
| Shank Diameter | 0.401 INCHES NOMINAL IN |
| Expansion Device | THREADED STEM |
| Surface Treatment Document and Classification | NAS4006 NATIONAL SPEC SINGLE TREATMENT RESPONSE NUT |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE OR NAS4006 NATIONAL SPEC 2ND TREATMENT RESPONSE SLEEVE |
| Material Document and Classification | AMS4926 ASSN STD 1ST MATERIAL RESPONSE OR AMS4987 ASSN STD 2ND MATERIAL RESPONSE NUT |
| Features Provided | SELF-LOCKING |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Grip Length | 0.531 INCHES MINIMUM AND 0.595 INCHES MAXIMUM IN |
| Surface Treatment | ALUMINUM NUT |
| Surface Treatment | PASSIVATE AND ALUMINUM SLEEVE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Material | STEEL CORROSION RESISTING SLEEVE |
| Material | TITANIUM NUT |
| Head Major Diameter | 0.405 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 |
| Reference | Meaning |
|---|---|
| PLT1070-8-10 | 5/2 Secondary reference U.S. Government activity |
| PLT1070-8-10 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-527-0221 is a Rivet,blind, classified under FSC 5320, Rivets. Status: active.
Key specifications for 5320-01-527-0221: Shank Diameter: 0.401 INCHES NOMINAL IN; Expansion Device: THREADED STEM; Surface Treatment Document and Classification: NAS4006 NATIONAL SPEC SINGLE TREATMENT RESPONSE NUT; Surface Treatment Document and Classification: QQ-P-35 FED SPEC 1ST TREATMENT RESPONSE OR NAS4006 NATIONAL SPEC 2ND TREATMENT RESPONSE SLEEVE. 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.