The Vent, cataloged under National Stock Number 6680-01-076-6563, is classified within Federal Supply Class 6680 (Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments) of the Instruments and Laboratory Equipment group. The manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 1 specification, 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.
| Parameter | Value |
|---|---|
| NSN | 6680-01-076-6563 |
| Primary Part Number | 61A91C9 |
| Item Name | Vent |
| FSC / FSG | 6680 / 66 — Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments |
| Manufacturer | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| Status | ACTIVE |
| General Characteristics Item Description | ALUMINUM ALLOY 6061-T6 OR T651 PER QQ-A-225/8,ANODIZE PER MIL-A-8625 TYPE I CL2 BLACK,LG 1.250 IN. OUTSIDE DIA 0.625 IN. INSIDE DIA 0.313,SCREW THREADS 5/16-24UNF-2A 0.250 IN. LG A |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 61A91C9 PRIMARY | Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA) |
NSN 6680-01-076-6563 is a Vent, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 6680, Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments. Status: active.
NSN 6680-01-076-6563 has 1 manufacturer part number on file: 61A91C9 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier).
Key specifications for 61A91C9: General Characteristics Item Description: ALUMINUM ALLOY 6061-T6 OR T651 PER QQ-A-225/8,ANODIZE PER MIL-A-8625 TYPE I CL2 BLACK,LG 1.250 IN. OUTSIDE DIA 0.625 IN. INSIDE DIA 0.313,SCREW THREADS 5/16-24UNF-2A 0.250 IN. LG A. 1 specification is documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.