The Plug,vent, cataloged under National Stock Number 5340-01-227-7962, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Support Services Corp. Government technical data includes 10 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-227-7962 |
| Primary Part Number | 125B590H01 |
| Item Name | Plug,vent |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Support Services Corp |
| Status | ACTIVE |
| Vent Hole Diameter | 0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN |
| Length | 0.320 INCHES NOMINAL IN |
| Surface Treatment Document and Classification | MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A |
| Vent Hole Shape | ROUND |
| End Connection Type | UNTHREADED |
| Material Document and Classification | QQ-A-225/9, T6 FED SPEC SINGLE MATERIAL RESPONSE |
| Outside Diameter | 0.188 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE |
| Material | ALUMINUM ALLOY 7075 |
| 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 | X |
| Part Number | Manufacturer |
|---|---|
| 125B590H01 PRIMARY | Northrop Grumman Support Services Corp (USA) |
| Reference | Meaning |
|---|---|
| 125B590H01 | 3/9 Design control — primary reference U.S. Government activity |
NSN 5340-01-227-7962 is a Plug,vent, manufactured by Northrop Grumman Support Services Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-227-7962 has 1 manufacturer part number on file: 125B590H01 (Northrop Grumman Support Services Corp).
Key specifications for 125B590H01: Vent Hole Diameter: 0.123 INCHES MINIMUM AND 0.128 INCHES MAXIMUM IN; Length: 0.320 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541, CLASS 1A MIL SPEC SINGLE TREATMENT RESPONSE A; Vent Hole Shape: ROUND. 10 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.