The Rivet,blind, cataloged under National Stock Number 5320-01-303-9684, is classified within Federal Supply Class 5320 (Rivets) of the Hardware and Abrasives group. The manufacturer of record is Hi-Shear Corporation. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-303-9684 |
| Primary Part Number | BL5221-8-5 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.274 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN |
| Width Across Flats | 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN |
| Head Height | 0.135 INCHES MAXIMUM IN |
| Expansion Device | BREAK STEM |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Material Document and Classification | AMS 5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Features Provided | DRIVE NUT |
| Head Style | HEXAGON |
| Specification/standard Data | 80205-NAS1753 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| Grip Length | 0.282 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Shank Style | THREADED SELF-PLUGGING SHANK W/SLEEVE |
| Surface Treatment | PASSIVATE OVERALL |
| Material | IRON ALLOY 660 OVERALL |
| 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 |
|---|---|
| BL5221-8-5 | Hi-Shear Corporation (USA) |
| BL5221-8-5 | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| PLT5221-8-5 | Howmet Global Fastening Systems Inc (USA) |
| Reference | Meaning |
|---|---|
| 10118843 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| PLT5221-8-5 | 5/2 Secondary reference U.S. Government activity |
| PLT5221-8-5 | 5/9 Secondary reference U.S. Government activity |
| NAS1753-4DL5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-303-9684 is a Rivet,blind, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-303-9684 has 3 manufacturer part numbers on file: BL5221-8-5 (Hi-Shear Corporation), BL5221-8-5 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), PLT5221-8-5 (Howmet Global Fastening Systems Inc).
Key specifications for BL5221-8-5: Shank Diameter: 0.274 INCHES MINIMUM AND 0.276 INCHES MAXIMUM IN; Width Across Flats: 0.367 INCHES MINIMUM AND 0.375 INCHES MAXIMUM IN; Head Height: 0.135 INCHES MAXIMUM IN; Expansion Device: BREAK STEM. 13 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.