The Rivet,blind, cataloged under National Stock Number 5320-01-077-0571, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. Government technical data includes 28 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-077-0571 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Status | ACTIVE |
| Shank Diameter | 0.275 INCHES NOMINAL IN |
| Lubrication | CETYL ALCOHOL |
| Fastener Length | 0.783 INCHES NOMINAL IN |
| Expansion Device | BREAK STEM |
| Surface Treatment Document and Classification | NAS5672 NATIONAL SPEC 1ST TREATMENT RESPONSE BOLT |
| Surface Treatment Document and Classification | NAS5672 NATIONAL SPEC 2ND TREATMENT RESPONSE NUT |
| Surface Treatment Document and Classification | QQ-P-416,TYPE II,CLASS 3 FED SPEC 3RD TREATMENT RESPONSE SLEEVE |
| Hardness Rating | 43.5 ROCKWELL C MINIMUM AND 46.5 ROCKWELL C MAXIMUM BOLT |
| Hardness Rating | 43.5 ROCKWELL C MINIMUM AND 46.5 ROCKWELL C MAXIMUM NUT |
| Material Document and Classification | MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE NUT |
| Material Document and Classification | AMS5639 ASSN STD 3RD MATERIAL RESPONSE SLEEVE |
| Material Document and Classification | MIL-S-6049 MIL SPEC 1ST MATERIAL RESPONSE BOLT |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Grip Length | 0.376 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Shank Style | SELF-PLUGGING HIGH CLINCH SHANK |
| Surface Treatment | CADMIUM NUT |
| Surface Treatment | CADMIUM BOLT |
| Surface Treatment | CADMIUM SLEEVE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Thread Class | LH |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 304 SLEEVE |
| Material | STEEL COMP 8740 BOLT |
| Material | STEEL COMP 8740 NUT |
| Thread Series Designator | UNS |
| Head Major Diameter | 0.395 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 |
|---|---|
| VA212-8-7 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-077-0571 is a Rivet,blind, classified under FSC 5320, Rivets. Status: active.
Key specifications for 5320-01-077-0571: Shank Diameter: 0.275 INCHES NOMINAL IN; Lubrication: CETYL ALCOHOL; Fastener Length: 0.783 INCHES NOMINAL IN; Expansion Device: BREAK STEM. 28 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.