The Rivet,blind, cataloged under National Stock Number 5320-01-472-3552, 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 15 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5320-01-472-3552 |
| Primary Part Number | ST3M781-4-5 |
| Item Name | Rivet,blind |
| FSC / FSG | 5320 / 53 — Rivets |
| Manufacturer | Hi-Shear Corporation |
| Status | ACTIVE |
| Shank Diameter | 0.258 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| Lubrication | DRY FILM |
| Expansion Device | THREADED STEM |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SLEEVE |
| Material Document and Classification | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE BOLT |
| Material Document and Classification | AMS4928 ASSN STD SINGLE MATERIAL RESPONSE OR AMS4967 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Head Style | FLUSH (FLAT) COUNTERSUNK (INCLUDED ANGLE - LESS THAN 135 DEG W OR W/O CHAMFER) |
| Grip Length | 0.282 INCHES MINIMUM AND 0.344 INCHES MAXIMUM IN |
| Shank Style | BLIND RIVET, NUT AND BOLT (ASSEMBLY) |
| Surface Treatment | PASSIVATE SLEEVE |
| Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Material | STEEL CORROSION RESISTING SLEEVE |
| Material | TITANIUM ALLOY UNS R56400 NUT |
| Material | TITANIUM ALLOY UNS R56400 BOLT |
| Head Major Diameter | 0.363 INCHES MINIMUM AND 0.394 INCHES MAXIMUM 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 |
|---|---|
| ST3M781-4-5 PRIMARY | Hi-Shear Corporation (USA) |
| ST3M781-4-5 PRIMARY | Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc (CAN) |
| ST3M781-4-5 PRIMARY | Howmet Global Fastening Systems Inc. Div Voi-Shan Products (USA) |
| Reference | Meaning |
|---|---|
| PLT1058-8-5 | 5/9 Secondary reference U.S. Government activity |
| PLT1058-8-5 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| ST3M781-4-5 | 5/9 Secondary reference Howmet Global Fastening Systems Inc |
| 10119000 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| PLT1058-8-5 | 5/9 Secondary reference U.S. Government activity |
| ST3M781-4-5 | 7/2 Vendor item drawing reference The Boeing Company Div Defense |
| PLT1058-8-5 | 5/9 Secondary reference Hi-Shear Corporation |
| ST3M781-4-5 | 3/2 Design control — primary reference U.S. Government activity |
NSN 5320-01-472-3552 is a Rivet,blind, manufactured by Hi-Shear Corporation, classified under FSC 5320, Rivets. Status: active.
NSN 5320-01-472-3552 has 3 manufacturer part numbers on file: ST3M781-4-5 (Hi-Shear Corporation), ST3M781-4-5 (Lisi Aerospace Canada Corp Div Hi Shear Holdings Inc), ST3M781-4-5 (Howmet Global Fastening Systems Inc. Div Voi-Shan Products).
Key specifications for ST3M781-4-5: Shank Diameter: 0.258 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN; Lubrication: DRY FILM; Expansion Device: THREADED STEM; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE SLEEVE. 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.