The Cap,filler Opening, cataloged under National Stock Number 2590-01-495-6521, is classified within Federal Supply Class 2590 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Wisco Products Inc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 2590-01-495-6521 |
| Primary Part Number | 4320-5 |
| Item Name | Cap,filler Opening |
| FSC / FSG | 2590 / 25 — No Item Name Available |
| Manufacturer | Wisco Products Inc |
| Status | ACTIVE |
| System for Which Designed | PRESSURIZED |
| Maximum Working Pressure | 4.500 POUNDS PER SQUARE INCH (PSI) LBS |
| Retaining Device Type | CHAIN |
| Surface Treatment | ZINC OVERALL |
| Material | STEEL CORROSION RESISTING OR RUBBER SYNTHETIC OVERALL |
| Style Designator | CLOSED COOLING SYSTEM TYPE |
| Surface Treatment Document and Classification | ASTM 633,TYPE 3 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| Outside Diameter | 4.180 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 4320-5 PRIMARY | Wisco Products Inc (USA) |
NSN 2590-01-495-6521 is a Cap,filler Opening, manufactured by Wisco Products Inc, classified under FSC 2590 (No Item Name Available). Status: active.
NSN 2590-01-495-6521 has 1 cross-referenced part number: 4320-5 (Wisco Products Inc).
There are 6 known substitutes for 2590-01-495-6521: 2835-00-015-0290, 4820-00-087-2093, 3110-00-144-8518 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 4320-5: System for Which Designed: PRESSURIZED; Maximum Working Pressure: 4.500 POUNDS PER SQUARE INCH (PSI) LBS; Retaining Device Type: CHAIN; Surface Treatment: ZINC OVERALL. 8 total characteristics are documented in the Federal Logistics Information System.