The Piston,pump, cataloged under National Stock Number 4320-01-278-5634, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Leroi International Inc Dba Compair Leroi. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-278-5634 |
| Primary Part Number | 39110 |
| Item Name | Piston,pump |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Leroi International Inc Dba Compair Leroi |
| Status | ACTIVE |
| Ring | NOT INCLUDED |
| Pin | NOT INCLUDED |
| Retaining Ring Groove | NOT INCLUDED |
| Pin Type for Which Designed | FLOATING |
| Integral Connecting Rod | NOT INCLUDED |
| Material | IRON CAST |
| Head Style | FLAT |
| Skirt Bottom Cutaway Feature | INCLUDED |
| Pinhole Diameter | 1.250 INCHES NOMINAL IN |
| Finished Size Designation | STANDARD |
| Oil Groove | INCLUDED |
| Cut Depth | 1.000 INCHES NOMINAL IN |
| Diameter | 2.9975 INCHES MINIMUM AND 2.9980 INCHES MAXIMUM IN |
| Skirt Type | SOLID |
| Distance From Pin Hole Center to Extreme Top | 3.074 INCHES MINIMUM AND 3.077 INCHES MAXIMUM IN |
| Pin Hole Bushing | NOT INCLUDED |
| Surface Finish | FINISHED |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 4320-01-278-5634 is a Piston,pump, manufactured by Leroi International Inc Dba Compair Leroi, classified under FSC 4320 (No Item Name Available). Status: active.
NSN 4320-01-278-5634 has 2 cross-referenced part numbers: 39110 (Compair Kellogg Div of Robertshaw Controls Co), 39110 (Leroi International Inc Dba Compair Leroi).
There are 6 known substitutes for 4320-01-278-5634: 5815-00-021-4603, 6625-00-103-2679, 5985-01-005-5082 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 39110: Ring: NOT INCLUDED; Special Features: HARDENED PER BRINNELL STANDARD 140.0 MIN TO 160.0 MAX; Pin: NOT INCLUDED; Retaining Ring Groove: NOT INCLUDED. 19 total characteristics are documented in the Federal Logistics Information System.