The Vacuum Breaker Air Vent Assembly, cataloged under National Stock Number 4510-01-720-7876, is classified within Federal Supply Class 4510 (Plumbing Fixtures and Accessories) of the Plumbing, Heating, and Waste Disposal group. The manufacturer of record is Ace Hardware Corp. Dba Ace Hardware Div Hughes Ace Hardware. Government technical data includes 2 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.
| Parameter | Value |
|---|---|
| NSN | 4510-01-720-7876 |
| Primary Part Number | 4193496 |
| Item Name | Vacuum Breaker Air Vent Assembly |
| FSC / FSG | 4510 / 45 — Plumbing Fixtures and Accessories |
| Manufacturer | Ace Hardware Corp. Dba Ace Hardware Div Hughes Ace Hardware |
| Status | ACTIVE |
| General Characteristics Item Description | FOR USE ON ARROWHEAD BRASS 420 SERIES FROST-PROOF HYDRANTS |
| Supplementary Features | PART KIT INCLUDES GREEN CAP, PLASTIC BODY AND PLUNGER, O-RING, AND PLUNGER SEAL |
| 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 |
|---|---|
| 4193496 PRIMARY | Ace Hardware Corp. Dba Ace Hardware Div Hughes Ace Hardware (USA) |
NSN 4510-01-720-7876 is a Vacuum Breaker Air Vent Assembly, manufactured by Ace Hardware Corp. Dba Ace Hardware Div Hughes Ace Hardware, classified under FSC 4510, Plumbing Fixtures and Accessories. Status: active.
NSN 4510-01-720-7876 has 1 manufacturer part number on file: 4193496 (Ace Hardware Corp. Dba Ace Hardware Div Hughes Ace Hardware).
Key specifications for 4193496: General Characteristics Item Description: FOR USE ON ARROWHEAD BRASS 420 SERIES FROST-PROOF HYDRANTS; Supplementary Features: PART KIT INCLUDES GREEN CAP, PLASTIC BODY AND PLUNGER, O-RING, AND PLUNGER SEAL; Special Features: OEM MANUFACTURER: ARROWHEAD BRASS PRODUCTS 5147 ALHAMBRA AVENUE LOS ANGELES, CALIFORNIA (800)332-4267; Part Name Assigned by Controlling Agency: AIR VENT ASSEMBLY. 2 specifications are 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.