The Nut,self-Locking,hexagon, cataloged under National Stock Number 5310-01-500-7647, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Bossard Intl Inc. Government technical data includes 12 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-500-7647 |
| Primary Part Number | BN637-M46 |
| Item Name | Nut,self-Locking,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Bossard Intl Inc |
| Status | ACTIVE |
| Width Across Flats | 7.0 MILLIMETERS NOMINAL MM |
| Thread Tolerance Class | 4H6H INTERNAL |
| Thread Series | M |
| Thread Pitch in Millimeters | 0.70 |
| Temp Rating | -70.0 CELSIUS MINIMUM AND 120.0 CELSIUS MAXIMUM DEGC |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 4.0 MILLIMETERS MM |
| Locking Feature | PREVAILING TORQUE WITH NONMETALLIC INSERT |
| Nut Height | 5.0 MILLIMETERS NOMINAL MM |
| Nut Style | HEXAGON |
| Material | STEEL NUT |
| Bearing Surface Type | CHAMFERED |
| 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 |
|---|---|
| DIN985-ISO 10511 M4X0.7 | Bossard Intl Inc (USA) |
| BN637-M46 PRIMARY | Bossard Intl Inc (USA) |
| 1242385 | Bossard Intl Inc (USA) |
NSN 5310-01-500-7647 is a Nut,self-Locking,hexagon, manufactured by Bossard Intl Inc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-500-7647 has 3 manufacturer part numbers on file: DIN985-ISO 10511 M4X0.7 (Bossard Intl Inc), BN637-M46 (Bossard Intl Inc), 1242385 (Bossard Intl Inc).
Key specifications for BN637-M46: Width Across Flats: 7.0 MILLIMETERS NOMINAL MM; Thread Tolerance Class: 4H6H INTERNAL; Thread Series: M; Thread Pitch in Millimeters: 0.70. 12 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.