The Nut,sleeve, cataloged under National Stock Number 5310-01-365-7265, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier. Government technical data includes 13 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5310-01-365-7265 |
| Primary Part Number | MBEU145265 |
| Item Name | Nut,sleeve |
| FSC / FSG | 5310 / 53 — Nuts and Washers |
| Manufacturer | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier |
| Status | ACTIVE |
| Flange Width Across Flats | 0.679 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN |
| Nut Length | 0.350 INCHES NOMINAL IN |
| Flange Thickness | 0.016 INCHES NOMINAL IN |
| Thread Series | UNF |
| Material Document and Classification | AMS 4640 ASSN STD SINGLE MATERIAL RESPONSE NUT |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 0.312 INCHES IN |
| Nut Diameter | 0.495 INCHES MINIMUM AND 0.498 INCHES MAXIMUM IN |
| Cross-Sectional Shape | HEXAGONAL NUT |
| Nut Style | SLEEVE |
| Thread Class | 2B |
| Thread Quantity Per Inch | 24 |
| Material | COPPER ALLOY 172 NUT |
| 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 |
|---|---|
| MBEU145265 | Martin-Baker Aircraft Company Limited (GBR) |
| MBEU145265 PRIMARY | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 10122257 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5310-01-365-7265 is a Nut,sleeve, manufactured by Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier, classified under FSC 5310, Nuts and Washers. Status: active.
NSN 5310-01-365-7265 has 2 manufacturer part numbers on file: MBEU145265 (Martin-Baker Aircraft Company Limited), MBEU145265 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for MBEU145265: Flange Width Across Flats: 0.679 INCHES MINIMUM AND 0.688 INCHES MAXIMUM IN; Nut Length: 0.350 INCHES NOMINAL IN; Flange Thickness: 0.016 INCHES NOMINAL IN; Thread Series: UNF. 13 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.