The Pump,reciprocating, cataloged under National Stock Number 4320-01-260-5961, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Bourns Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 4320-01-260-5961 |
| Primary Part Number | 1057 |
| Item Name | Pump,reciprocating |
| FSC / FSG | 4320 / 43 — No Item Name Available |
| Manufacturer | Bourns Inc |
| Status | CANCELLED |
| Intake Connection Type | THREADED EXTERNAL |
| Intake Connection Quantity | 2 |
| Discharge Connection Quantity | 2 |
| Cylinder Quantity | 1 |
| Drive Shaft Length | 12.990 INCHES NOMINAL IN |
| Drive Shaft End Diameter | 1.1792 INCHES MINIMUM AND 1.1800 INCHES MAXIMUM IN |
| Discharge Connection Type | THREADED EXTERNAL |
| Discharge Pressure | 800.0 COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - CEMENT AND CONCRETE CONTAINING CENOSPHERES |
| Maximum Discharge Flow Rate | 12.0 GALLONS PER MINUTE |
| Pumping Element Type | PISTON |
| Reciprocating Stroke Type | FIXED |
| Operating Speed at Rated Capacity | 1200.0 REVOLUTIONS PER MINUTE |
| Pump Reciprocating Design | SINGLE ACTING |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 0310 | Pall Wassertechnik Gmbh (DEU) |
| 1057 | Cat Pumps Deutschland Gmbh (DEU) |
| ASC1257675 | Asc Pty Ltd (AUS) |
| 1057/57783 | Slce Watermakers (FRA) |
| 1057 | Cat Pumps Corp (USA) |
| 12748 | Rochem Water Treatment Gmbh (DEU) |
| 1057.DG | Cat Pumps Corp (USA) |
| 0310 | Pall Gmbh (DEU) |
| 710053 | Slce Watermakers (FRA) |
| W00310 | Pall Gmbh (DEU) |
| 1057 PRIMARY | Bourns Inc (USA) |
NSN 4320-01-260-5961 is a Pump,reciprocating, manufactured by Bourns Inc, classified under FSC 4320 (No Item Name Available). Status: cancelled.
NSN 4320-01-260-5961 has 11 cross-referenced part numbers: 0310 (Pall Wassertechnik Gmbh), 1057 (Cat Pumps Deutschland Gmbh), ASC1257675 (Asc Pty Ltd), 1057/57783 (Slce Watermakers), 1057 (Cat Pumps Corp) and 6 more.
There are 12 known substitutes for 4320-01-260-5961: 5320-00-010-4071, 5995-00-081-6833, 4710-00-185-3012 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1057: Intake Connection Type: THREADED EXTERNAL; Intake Connection Quantity: 2; Discharge Connection Quantity: 2; Cylinder Quantity: 1. 13 total characteristics are documented in the Federal Logistics Information System.
NSN 4320-01-260-5961 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.