The Ball Screw Assembly, cataloged under National Stock Number 4470-00-944-6687, 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 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4470-00-944-6687 |
| Primary Part Number | 820-4551324-1 |
| Item Name | Ball Screw Assembly |
| 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 |
|---|---|
| 820-4551324-1 | Naval Sea Systems Command (USA) |
| 89341 | Spx Flow Us, Llc Dba Spx Valves & Controls (USA) |
| X77277PC8A | Spx Flow Us, Llc Dba Spx Valves & Controls (USA) |
| B8273 | Beaver Precision Products Inc (USA) |
| 820-4551324-1 | Beaver Precision Products Inc (USA) |
| 820-4551352PC120 | Naval Sea Systems Command (USA) |
| X1-136725PC8 | Spx Flow Us, Llc Dba Spx Valves & Controls (USA) |
NSN 4470-00-944-6687 is a Ball Screw Assembly, manufactured by Naval Sea Systems Command, classified under FSC 4470 (No Item Name Available). Status: active.
NSN 4470-00-944-6687 has 7 cross-referenced part numbers: 820-4551324-1 (Naval Sea Systems Command), 89341 (Spx Flow Us, Llc Dba Spx Valves & Controls), X77277PC8A (Spx Flow Us, Llc Dba Spx Valves & Controls), B8273 (Beaver Precision Products Inc), 820-4551324-1 (Beaver Precision Products Inc) and 2 more.
There is 1 known substitute for 4470-00-944-6687: 3460-00-243-1954. Verify interchangeability with system specifications before substitution.
Key specifications for 820-4551324-1: 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.