The Rivet,blind, cataloged under National Stock Number 5320-01-491-6622, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Huck Fasteners Dba Huck Intl Inc. Government technical data includes 9 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-491-6622 |
| Primary Part Number | MBP-R8-M5 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Huck Fasteners Dba Huck Intl Inc |
| Status | ACTIVE |
| Shank Diameter | 0.251 INCHES NOMINAL IN |
| Head Height | 0.150 INCHES NOMINAL IN |
| Expansion Device | SERRATED STEM-TYPE W |
| Head Style | UNIVERSAL |
| Grip Length | 0.189 INCHES MINIMUM AND 0.268 INCHES MAXIMUM IN |
| Shank Style | SELF-PLUGGING HIGH CLINCH SHANK |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL OVERALL |
| Head Major Diameter | 0.500 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 |
|---|---|
| MBP-R8-M5 PRIMARY | Huck Fasteners Dba Huck Intl Inc (USA) |
| Reference | Meaning |
|---|---|
| 12420557-002 | 7/2 Vendor item drawing reference U S Army Tank Automotive Command Amsta-Im-Mm |
| 12449500-4 | D/9 Drawing number reference only U S Army Tank Automotive Command Amsta-Im-Mm |
NSN 5320-01-491-6622 is a Rivet,blind, manufactured by Huck Fasteners Dba Huck Intl Inc, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-491-6622 has 1 manufacturer part number on file: MBP-R8-M5 (Huck Fasteners Dba Huck Intl Inc).
Key specifications for MBP-R8-M5: Shank Diameter: 0.251 INCHES NOMINAL IN; Head Height: 0.150 INCHES NOMINAL IN; Expansion Device: SERRATED STEM-TYPE W; Head Style: UNIVERSAL. 9 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.