The Rivet,blind, cataloged under National Stock Number 5320-01-080-9252, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Stanley Engineered Fastening Llc. Government technical data includes 15 specifications, cited from the U.S. Government catalog. The record lists 4 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-080-9252 |
| Primary Part Number | MK650BS |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Stanley Engineered Fastening Llc |
| Status | ACTIVE |
| Shank Diameter | 0.187 INCHES NOMINAL IN |
| Fastener Length | 0.500 INCHES NOMINAL IN |
| Expansion Device | PLAIN STEM-TYPE T |
| Surface Treatment Document and Classification | QQ-Z-325 FED SPEC SINGLE TREATMENT RESPONSE BODY |
| Surface Treatment Document and Classification | QQ-Z-325 FED SPEC SINGLE TREATMENT RESPONSE MANDREL |
| Material Document and Classification | QQ-N-281 FED SPEC ALL MATERIAL RESPONSES BODY |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Grip Length | 0.261 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN |
| Shank Style | SELF-PLUGGING |
| Surface Treatment | ZINC BODY |
| Surface Treatment | ZINC MANDREL |
| Countersink Angle | 120.0 DEGREES NOMINAL |
| Material | NICKEL ALLOY R-405 OR NICKEL ALLOY 400 BODY |
| Material | STEEL COMP 1025 MANDREL |
| Head Major Diameter | 0.320 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 |
|---|---|
| MK650BS PRIMARY | Stanley Engineered Fastening Llc (USA) |
| MK650BS | Bisco Industries Inc Dba National Precision Products Company Div National Precision Products (USA) |
| MK650BS | Hanson Rivet & Supply Co (USA) |
| MK650BS | Rapid Rivet and Fastener Corporation Dba Rapid Rivet & Fastener Corp (USA) |
| Reference | Meaning |
|---|---|
| MK650BS | 3/9 Design control — primary reference Pop Fasteners a Black and Decker Co |
| 305-2417-00 | 5/9 Secondary reference Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems |
NSN 5320-01-080-9252 is a Rivet,blind, manufactured by Stanley Engineered Fastening Llc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-080-9252 has 4 manufacturer part numbers on file: MK650BS (Stanley Engineered Fastening Llc), MK650BS (Bisco Industries Inc Dba National Precision Products Company Div National Precision Products), MK650BS (Hanson Rivet & Supply Co), MK650BS (Rapid Rivet and Fastener Corporation Dba Rapid Rivet & Fastener Corp).
Key specifications for MK650BS: Shank Diameter: 0.187 INCHES NOMINAL IN; Fastener Length: 0.500 INCHES NOMINAL IN; Expansion Device: PLAIN STEM-TYPE T; Surface Treatment Document and Classification: QQ-Z-325 FED SPEC SINGLE TREATMENT RESPONSE BODY. 15 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.