The Plug,vent, cataloged under National Stock Number 5340-01-339-9476, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is The Boeing Company Div Defense. 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-339-9476 |
| Primary Part Number | 74B830131-2003 |
| Item Name | Plug,vent |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | The Boeing Company Div Defense |
| Status | ACTIVE |
| Vent Hole Diameter | 0.060 INCHES NOMINAL IN |
| Length | 0.625 INCHES NOMINAL IN |
| Vent Hole Shape | ROUND |
| Thread Length | 0.175 INCHES NOMINAL IN |
| End Connection Type | THREADED |
| Material Document and Classification | AISI 304 ASSN STD SINGLE MATERIAL RESPONSE |
| Outside Diameter | 0.688 INCHES NOMINAL IN |
| Thread Class | 3A A |
| Material | STEEL COMP 304 |
| Thread Size and Series/type Designator | 7/16-20 UNIFIED NATIONAL JOINT FINE (UNJF) |
| Vent Hole Quantity | 1 |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | F |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| 74B830131-2003 PRIMARY | The Boeing Company Div Defense (USA) |
| Reference | Meaning |
|---|---|
| 10113175 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
NSN 5340-01-339-9476 is a Plug,vent, manufactured by The Boeing Company Div Defense, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-339-9476 has 1 manufacturer part number on file: 74B830131-2003 (The Boeing Company Div Defense).
Key specifications for 74B830131-2003: Vent Hole Diameter: 0.060 INCHES NOMINAL IN; Length: 0.625 INCHES NOMINAL IN; Vent Hole Shape: ROUND; Thread Length: 0.175 INCHES NOMINAL IN. 11 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.