The Retainer,pivot,valve, cataloged under National Stock Number 4820-01-209-0896, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Huntington Ingalls Incorporated Div Ingalls Shipbuilding. 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through both NSN and commercial part number lookups. 5 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4820-01-209-0896 |
| Primary Part Number | 1079-204-35 PIECE 3 |
| Item Name | Retainer,pivot,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Huntington Ingalls Incorporated Div Ingalls Shipbuilding |
| Status | ACTIVE |
| General Characteristics Item Description | COPPER ALLOY; 3.620 IN. OD; 4 TAP THRU HOLES IN |
| 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 |
|---|---|
| 1079-204-35 PIECE 3 | Huntington Ingalls Incorporated Div Ingalls Shipbuilding (USA) |
| Reference | Meaning |
|---|---|
| SSN593-204-1863367 PIECE 3 | 5/9 Secondary reference U.S. Government activity |
| 1079-204-35 | D/9 Drawing number reference only Huntington Ingalls Incorporated Div Ingalls Shipbuilding |
| 1863367 | D/9 Drawing number reference only U.S. Government activity |
| SSN593-204-1863367 | D/9 Drawing number reference only U.S. Government activity |
| 1863367 PIECE 3 | 3/2 Design control — primary reference U.S. Government activity |
NSN 4820-01-209-0896 is a Retainer,pivot,valve, manufactured by Huntington Ingalls Incorporated Div Ingalls Shipbuilding, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-209-0896 has 1 manufacturer part number on file: 1079-204-35 PIECE 3 (Huntington Ingalls Incorporated Div Ingalls Shipbuilding).
1 possible match (shared part number, not a government interchangeability claim): 3040-01-209-2405. Verify interchangeability with system specifications before substitution.
Key specifications for 1079-204-35 PIECE 3: General Characteristics Item Description: COPPER ALLOY; 3.620 IN. OD; 4 TAP THRU HOLES 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.