The Nut,self-Locking,clinch, cataloged under National Stock Number 5310-01-216-5221, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Dupree, Inc Dba Stake Fastener Co Div Stake Fastener Co.. Government technical data includes 14 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-216-5221 |
| Primary Part Number | SF10G6CBB5D |
| Item Name | Nut,self-Locking,clinch |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Dupree, Inc Dba Stake Fastener Co Div Stake Fastener Co. |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| Thread Series | UNIFIED NATIONAL COARSE (UNC) |
| Material Document and Classification | AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.138 INCHES IN |
| Nut Diameter | 0.281 INCHES MAXIMUM IN |
| Pilot Diameter | 0.165 INCHES NOMINAL IN |
| Pilot Length | 0.146 INCHES MINIMUM AND 0.166 INCHES MAXIMUM IN |
| Locking Feature | PREVAILING TORQUE ALL METAL DESIGN |
| Nut Height | 0.256 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM AND CHROMATE OVERALL |
| Thread Class | 3B |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4140 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 |
|---|---|
| SF10G6CBB5D PRIMARY | Dupree, Inc Dba Stake Fastener Co Div Stake Fastener Co. (USA) |
NSN 5310-01-216-5221 is a Nut,self-Locking,clinch, manufactured by Dupree, Inc Dba Stake Fastener Co Div Stake Fastener Co., classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-216-5221 has 1 manufacturer part number on file: SF10G6CBB5D (Dupree, Inc Dba Stake Fastener Co Div Stake Fastener Co.).
Key specifications for SF10G6CBB5D: Surface Treatment Document and Classification: QQ-P-416,TY 2,CL 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Thread Series: UNIFIED NATIONAL COARSE (UNC); Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Thread Direction: RIGHT-HAND. 14 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.