The Cock,drain, cataloged under National Stock Number 4820-00-720-2096, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is United Technologies Automotive Inc Components Div. The record lists 5 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 6 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Cock,drain |
| FSC / FSG | 4820 — Valves, Nonpowered (FSG 48) |
| Manufacturers | Westrac Equipment Pty Ltd (CAGE Z02C9); Oshkosh Defense Llc (CAGE 75Q65); United Technologies Automotive Inc Components Div (CAGE 72216); Essex Brownell Inc. Div Essex Group Inc (CAGE 72983); Caterpillar Inc Div Caterpillar Defense (CAGE 11083) |
| Parameter | Value |
|---|---|
| NSN | 4820-00-720-2096 |
| Primary Part Number | E2019X4 |
| Item Name | Cock,drain |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | United Technologies Automotive Inc Components Div |
| Status | ACTIVE |
| 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 |
|---|---|
| 2P-4173 | Westrac Equipment Pty Ltd (AUS) |
| 3643936 | Oshkosh Defense Llc (USA) |
| E2019X4 PRIMARY | United Technologies Automotive Inc Components Div (USA) |
| E2019X4 | Essex Brownell Inc. Div Essex Group Inc (USA) |
| 2P4173 | Caterpillar Inc Div Caterpillar Defense (USA) |
| Reference | Meaning |
|---|---|
| E2019X4 | 5/9 Secondary reference Esco Inc |
| DC607-5 | 5/2 Secondary reference U.S. Government activity |
| 3643936 | 5/9 Secondary reference Oshkosh Corp |
| 12584254 | 5/9 Secondary reference U S Army Tank Automotive Command Amsta-Im-Mm |
| DC607-4 | 5/2 Secondary reference U.S. Government activity |
| E2019 | C/1 Advisory reference — outside the item-of-supply concept Essex Brownell Inc. Div Essex Group Inc |
NSN 4820-00-720-2096 is a Cock,drain, manufactured by United Technologies Automotive Inc Components Div, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-720-2096 has 5 manufacturer part numbers on file: 2P-4173 (Westrac Equipment Pty Ltd), 3643936 (Oshkosh Defense Llc), E2019X4 (United Technologies Automotive Inc Components Div), E2019X4 (Essex Brownell Inc. Div Essex Group Inc), 2P4173 (Caterpillar Inc Div Caterpillar Defense).
1 possible match (shared part number, not a government interchangeability claim): 4470-00-935-1554. Verify interchangeability with system specifications before substitution.
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.