The Diaphragm,manway Seal, cataloged under National Stock Number 4470-00-297-8568, is classified within Federal Supply Class 4470 (No Item Name Available) of the Furnace, Steam, Drying, Nuclear Reactors group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4470-00-297-8568 |
| Primary Part Number | 820-4384426PC4 |
| Item Name | Diaphragm,manway Seal |
| FSC / FSG | 4470 / 44 — No Item Name Available |
| Manufacturer | Naval Sea Systems Command |
| Status | ACTIVE |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. |
| Criticality Code Justification | ZZZY |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 820-4384426PC4 | Naval Sea Systems Command (USA) |
| 495846PT275177 | Curtiss-Wright Controls, Inc. Div Actuation Division (USA) |
| 28576FPC30-4 | The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company (USA) |
| 820-4384426PC4GP1 | Naval Ship Systems Command (USA) |
| 28576FPC30-4 | Babcock & Wilcox Companies, the Div Sales & Service (USA) |
| 820-4384426PC4GP1 | Allis Chalmers Corp (USA) |
| 28576FPC30-4 | Babcock & Wilcox Co (USA) |
| 820-4384426ITEM4 | Babcock & Wilcox Co (USA) |
| 71-02-31139E12IT42 | Struthers Wells Corp (USA) |
| 820-4384426ITEM4 | The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company (USA) |
| 546E024101PT 030-004 | AC Valve Inc (USA) |
| 820-4384426 PIECE 4 | Naval Ship Systems Command (USA) |
NSN 4470-00-297-8568 is a Diaphragm,manway Seal, manufactured by Naval Sea Systems Command, classified under FSC 4470 (No Item Name Available). Status: active.
NSN 4470-00-297-8568 has 12 cross-referenced part numbers: 820-4384426PC4 (Naval Sea Systems Command), 495846PT275177 (Curtiss-Wright Controls, Inc. Div Actuation Division), 28576FPC30-4 (The Babcock & Wilcox Company Dba B & W Service Co Div B&w Service Company), 820-4384426PC4GP1 (Naval Ship Systems Command), 28576FPC30-4 (Babcock & Wilcox Companies, the Div Sales & Service) and 7 more.
There are 2 known substitutes for 4470-00-297-8568: 4470-00-995-0694, 4820-01-077-9257. Verify interchangeability with system specifications before substitution.
Key specifications for 820-4384426PC4: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 2 total characteristics are documented in the Federal Logistics Information System.