The Nut,plain,blind Rivet, cataloged under National Stock Number 5310-01-121-8511, 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 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-121-8511 |
| Primary Part Number | GN512B4271 |
| Item Name | Nut,plain,blind Rivet |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bollhoff Inc. Dba Bollhoff Rivnut Inc |
| Status | ACTIVE |
| Nut Length | 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL |
| Thread Series | UNF |
| Head Countersink Angle | 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM |
| Temp Rating | 233.0 FAHRENHEIT MAXIMUM DEGF |
| Material Document and Classification | AISI ASSN STD 1ST MATERIAL RESPONSE OR MIL-S-6049 MIL SPEC 2ND MATERIAL RESPONSE OVERALL |
| Shank End Type | CLOSED |
| Head Style | FLAT COUNTERSUNK |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.250 INCHES IN |
| Nut Diameter | 0.328 INCHES MINIMUM AND 0.332 INCHES MAXIMUM IN |
| Specification/standard Data | 26512-GN512B MANUFACTURERS STANDARD |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Nut Style | BLIND RIVET W/SMOOTH ROUND SHANK |
| Thread Class | 3B |
| Thread Quantity Per Inch | 28 |
| Material | STEEL COMP 4037 OR STEEL COMP 8740 OVERALL |
| Head Diameter | 0.529 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 |
|---|---|
| GN512B4271 PRIMARY | Bollhoff Inc. Dba Bollhoff Rivnut Inc (USA) |
| GN512B4271 | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| CH2528B271 | 5/9 Secondary reference Bfgoodrich Co the Aerospace Div Engineered Polymer Products |
NSN 5310-01-121-8511 is a Nut,plain,blind Rivet, manufactured by Bollhoff Inc. Dba Bollhoff Rivnut Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-121-8511 has 2 manufacturer part numbers on file: GN512B4271 (Bollhoff Inc. Dba Bollhoff Rivnut Inc), GN512B4271 (Northrop Grumman Systems Corporation).
Key specifications for GN512B4271: Nut Length: 1.110 INCHES MINIMUM AND 1.140 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC ALL TREATMENT RESPONSES OVERALL; Thread Series: UNF; Head Countersink Angle: 99.0 DEGREES MINIMUM AND 101.0 DEGREES MAXIMUM. 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.