The Cap,filler Opening, cataloged under National Stock Number 5340-01-077-8593, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Eaton Corp Fluid Power Opns Marshall Div. Government technical data includes 6 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. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-077-8593 |
| Primary Part Number | ER7881 |
| Item Name | Cap,filler Opening |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Eaton Corp Fluid Power Opns Marshall Div |
| Status | ACTIVE |
| Accommodation Type | HEXAGON END GRIPPING |
| Thread Length | 0.340 INCHES NOMINAL IN |
| Style Designator | THREADED TYPE EXTERNAL |
| Thread Diameter | 0.7500 INCHES NOMINAL IN |
| Thread Class | 2A A |
| Thread Series Designator | UNF |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| ER7881 PRIMARY | Eaton Corp Fluid Power Opns Marshall Div (USA) |
NSN 5340-01-077-8593 is a Cap,filler Opening, manufactured by Eaton Corp Fluid Power Opns Marshall Div, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-077-8593 has 1 manufacturer part number on file: ER7881 (Eaton Corp Fluid Power Opns Marshall Div).
Key specifications for ER7881: Overall Height: 0.660 INCHES NOMINAL IN; Accommodation Type: HEXAGON END GRIPPING; Thread Length: 0.340 INCHES NOMINAL IN; Style Designator: THREADED TYPE EXTERNAL. 6 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.