The Nut,plain,hexagon, cataloged under National Stock Number 5310-01-245-2590, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5310-01-245-2590 |
| Primary Part Number | MIL-S-1222 |
| Item Name | Nut,plain,hexagon |
| FSC / FSG | 5310 / 53 — No Item Name Available |
| Manufacturer | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| Status | ACTIVE |
| Nut Style | HEXAGON |
| Thread Class | 2B |
| Bearing Surface Type | FLAT OR WASHER FACED |
| Thread Series | UNF |
| Thread Quantity Per Inch | 28 |
| Criticality Code Justification | ZZZY |
| Nominal Thread Size | 0.250 INCHES IN |
| Thread Direction | RIGHT-HAND |
| Material Document and Classification | 66 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Width Across Flats | 0.428 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. |
| Material | STEEL OVERALL |
| Surface Treatment Document and Classification | ASTM A 153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Surface Treatment | ZINC OVERALL |
| Nut Height | 0.212 INCHES MINIMUM AND 0.226 INCHES MAXIMUM IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| MIL-S-1222 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-DTL-1222 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| 1/4-28UNF-2B | Naval Inventory Control Point Mechanicsburg (USA) |
| 000.250-28UNF-2B | Naval Inventory Control Point Mechanicsburg (USA) |
| MIL-S-1222G TY1 | Naval Inventory Control Point Mechanicsburg (USA) |
NSN 5310-01-245-2590 is a Nut,plain,hexagon, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5310 (No Item Name Available). Status: active.
NSN 5310-01-245-2590 has 5 cross-referenced part numbers: MIL-S-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-DTL-1222 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1/4-28UNF-2B (Naval Inventory Control Point Mechanicsburg), 000.250-28UNF-2B (Naval Inventory Control Point Mechanicsburg), MIL-S-1222G TY1 (Naval Inventory Control Point Mechanicsburg).
There are 12 known substitutes for 5310-01-245-2590: 5310-00-143-6102, 5310-01-017-6518, 5310-01-099-0696 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for MIL-S-1222: Nut Style: HEXAGON; Thread Class: 2B; Bearing Surface Type: FLAT OR WASHER FACED; Thread Series: UNF. 15 total characteristics are documented in the Federal Logistics Information System.