The Nut,plain,blind Rivet, cataloged under National Stock Number 5310-01-491-5016, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bollhoff Inc. Dba Bollhoff Rivnut Inc. Government technical data includes 18 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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 | 5310-01-491-5016 |
| Primary Part Number | SS50K226 |
| Item Name | Nut,plain,blind Rivet |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bollhoff Inc. Dba Bollhoff Rivnut Inc |
| Status | ACTIVE |
| Head Height | 0.124 INCHES MAXIMUM IN |
| Nut Length | 0.860 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Head Countersink Angle | 100.0 DEGREES NOMINAL |
| Shank End Type | OPEN |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.500 INCHES IN |
| Nut Diameter | 0.625 INCHES MAXIMUM IN |
| Head Minor Diameter | 0.733 INCHES NOMINAL IN |
| Head Major Countersink Angle | 100.0 DEGREES NOMINAL |
| Surface Treatment | PASSIVATE OVERALL |
| Nut Style | BLIND RIVET W/SMOOTH ROUND SHANK |
| Thread Class | 3B |
| Thread Quantity Per Inch | 13 |
| Material | STEEL COMP 430 OVERALL |
| Head Diameter | 0.907 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 |
|---|---|
| SS50K226 PRIMARY | Bollhoff Inc. Dba Bollhoff Rivnut Inc (USA) |
| Reference | Meaning |
|---|---|
| C2R2786 | D/9 Drawing number reference only Bollhoff Inc. Dba Bollhoff Rivnut Inc |
| SS50K226 | 5/9 Secondary reference Bfgoodrich Co the Aerospace Div Engineered Polymer Products |
NSN 5310-01-491-5016 is a Nut,plain,blind Rivet, manufactured by Bollhoff Inc. Dba Bollhoff Rivnut Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-491-5016 has 1 manufacturer part number on file: SS50K226 (Bollhoff Inc. Dba Bollhoff Rivnut Inc).
Key specifications for SS50K226: Head Height: 0.124 INCHES MAXIMUM IN; Nut Length: 0.860 INCHES NOMINAL IN; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC). 18 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.