PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

831505Parts Kit,rotary Pump

Grindley Manufacturing Inc. · NSN 4320-00-956-3740 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-956-3740 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-956-3740. Primary manufacturer part number: 831505.
Features
  • Parts Kit,rotary Pump — FSC 4320
  • Nonsupply Items and Quantities: 1.000 IN.OD STEEL AND SYNTHETIC RUBBER SEAL ASSY 1;59/64 IN.OD BLACK SYNTHETIC RUBBER O-RING 1;1-9/16 IN.OD BLACK SYNTHETIC RUBBER O-RING 1;1/31/64 IN.OD BLACK SYNTHETIC RUBBER O-RING IN
  • End Item Name: PUMP,ROTARY
  • End Item Source: 33525
  • Component Quantity: 4
  • 4 verified cross-references
  • Primary manufacturer: Grindley Manufacturing Inc.
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Parts Kit,rotary Pump, cataloged under National Stock Number 4320-00-956-3740, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Grindley Manufacturing Inc.. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-956-3740
Primary Part Number831505
Item NameParts Kit,rotary Pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerGrindley Manufacturing Inc.
StatusACTIVE
Nonsupply Items and Quantities1.000 IN.OD STEEL AND SYNTHETIC RUBBER SEAL ASSY 1;59/64 IN.OD BLACK SYNTHETIC RUBBER O-RING 1;1-9/16 IN.OD BLACK SYNTHETIC RUBBER O-RING 1;1/31/64 IN.OD BLACK SYNTHETIC RUBBER O-RING IN
End Item NamePUMP,ROTARY
End Item Source33525
Component Quantity4
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5905-00-068-6962381-1455-000 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
6515-01-164-316766-6150 INTERCHANGEABLE
Forceps,iris
Sklar Corporation Dba Sklar Instruments
Cross-Reference Index
Part NumberManufacturer
803341 Drs Environmental Systems Inc (USA)
831505 PRIMARY Grindley Manufacturing Inc. (USA)
803341 Davey Compressor Co Div of Keco Industries Inc (USA)
803341 Kidde-Fenwal, Llc (USA)
Related Parts
5905-00-068-6962INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
381-1455-000
6515-01-164-3167INTERCHANGEABLE
FORCEPS,IRIS
66-6150

Frequently Asked Questions

What is NSN 4320-00-956-3740?

NSN 4320-00-956-3740 is a Parts Kit,rotary Pump, manufactured by Grindley Manufacturing Inc., classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-956-3740?

NSN 4320-00-956-3740 has 4 cross-referenced part numbers: 803341 (Drs Environmental Systems Inc), 831505 (Grindley Manufacturing Inc.), 803341 (Davey Compressor Co Div of Keco Industries Inc), 803341 (Kidde-Fenwal, Llc).

What NSN replaces 4320-00-956-3740?

There are 2 known substitutes for 4320-00-956-3740: 5905-00-068-6962, 6515-01-164-3167. Verify interchangeability with system specifications before substitution.

What are the specifications of 831505?

Key specifications for 831505: Nonsupply Items and Quantities: 1.000 IN.OD STEEL AND SYNTHETIC RUBBER SEAL ASSY 1;59/64 IN.OD BLACK SYNTHETIC RUBBER O-RING 1;1-9/16 IN.OD BLACK SYNTHETIC RUBBER O-RING 1;1/31/64 IN.OD BLACK SYNTHETIC RUBBER O-RING IN; End Item Name: PUMP,ROTARY; End Item Identification: 4320-226-0418; End Item Source: 33525. 5 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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