The Retainer,insert,valve, cataloged under National Stock Number 4820-01-071-8880, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4820-01-071-8880 |
| Primary Part Number | SS845-1889587ASSYD1-4INPC20 |
| Item Name | Retainer,insert,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc |
| Status | ACTIVE |
| General Characteristics Item Description | NICKEL COPPER ALLOY,QQ-N-281 |
| 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 |
|---|---|
| SS845-1889587ASSYD1-4INPC20 PRIMARY | Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc (USA) |
| 2620-902ASSYD1-4INPC20 | The Walworth Company (USA) |
| SS845-1889587ASSYD1-4 | Naval Sea Systems Command (USA) |
| Reference | Meaning |
|---|---|
| 2620-902ASSYD1-4INPC20 | 5/9 Secondary reference U.S. Government activity |
NSN 4820-01-071-8880 is a Retainer,insert,valve, manufactured by Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-071-8880 has 3 manufacturer part numbers on file: SS845-1889587ASSYD1-4INPC20 (Milwaukee Valve Co, Inc Div Milwaukee Valve Company, Llc), 2620-902ASSYD1-4INPC20 (The Walworth Company), SS845-1889587ASSYD1-4 (Naval Sea Systems Command).
Key specifications for SS845-1889587ASSYD1-4INPC20: General Characteristics Item Description: NICKEL COPPER ALLOY,QQ-N-281; End Item Identification: MILWAUKEE VALVE CO. INC. 1/4 IN. ANGLE VALVE,DWG SS845-1889587ASSYD IN. 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.