The Disk,valve, cataloged under National Stock Number 4820-00-471-3605, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 2 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-00-471-3605 |
| Primary Part Number | 8721REVG PC7 |
| Item Name | Disk,valve |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Criticality Code Justification | ZZZY |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| 8721REVG PC7 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 9636PC7 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| Reference | Meaning |
|---|---|
| A7089-001-142 | 3/1 Design control — primary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| A7089.001.142 | 5/1 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| 8500-17 | 5/1 Secondary reference Emerson Automation Solutions Final Control Us Lp Div Navy Product Team |
| 20203,PC.7B | 5/1 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| 8551PC9B | 5/1 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| 8721REVFPC7 | 5/1 Secondary reference Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| 20155PC5B | 5/1 Secondary reference Naval Inventory Control Point Mechanicsburg |
NSN 4820-00-471-3605 is a Disk,valve, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-00-471-3605 has 2 manufacturer part numbers on file: 8721REVG PC7 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 9636PC7 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
7 possible matches (shared part number, not a government interchangeability claim): 4820-00-876-8608, 6520-01-089-5661, 4820-01-127-1701. Verify interchangeability with system specifications before substitution.
Key specifications for 8721REVG PC7: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.. 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.