The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-550-1920, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Breeze-Eastern Llc. Government technical data includes 11 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 | 5310-00-550-1920 |
| Primary Part Number | BL1530 |
| Item Name | Nut,plain,slotted,hexagon |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Breeze-Eastern Llc |
| Status | ACTIVE |
| Width Across Flats | 0.750 INCHES NOMINAL IN |
| Thread Series | UN |
| Thread Pitch Diameters | +0.5110 TO 0.5140 INCHES IN |
| Material Document and Classification | AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.531 INCHES IN |
| Nut Height | 0.562 INCHES NOMINAL IN |
| Nut Style | SLOTTED, HEXAGON |
| Thread Quantity Per Inch | 32 |
| Material | STEEL COMP 4340 OVERALL |
| 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 |
|---|---|
| BL1530 PRIMARY | Breeze-Eastern Llc (USA) |
NSN 5310-00-550-1920 is a Nut,plain,slotted,hexagon, manufactured by Breeze-Eastern Llc, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-00-550-1920 has 1 manufacturer part number on file: BL1530 (Breeze-Eastern Llc).
Key specifications for BL1530: Width Across Flats: 0.750 INCHES NOMINAL IN; Thread Series: UN; Thread Pitch Diameters: +0.5110 TO 0.5140 INCHES IN; Material Document and Classification: AMS 6415 ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 11 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.