PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11658Pump,rotary

Westerbeke Corporation · NSN 4320-01-130-8776 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-130-8776 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-130-8776. Primary manufacturer part number: 11658.
Features
  • Pump,rotary — FSC 4320
  • Rotary Pump Design: GEAR
  • 1 verified cross-reference
  • Primary manufacturer: Westerbeke Corporation
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Pump,rotary, cataloged under National Stock Number 4320-01-130-8776, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Westerbeke Corporation. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-130-8776
Primary Part Number11658
Item NamePump,rotary
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerWesterbeke Corporation
StatusACTIVE
Rotary Pump DesignGEAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5310-00-127-8543 INTERCHANGEABLE
Nut,special
5950-00-327-9323986117-1B INTERCHANGEABLE
Saturable Reactor
Raytheon Company Dba Raytheon
2940-00-350-5541B11658 INTERCHANGEABLE
Tube
Uniform Hood Lace Co
4820-00-442-7222 INTERCHANGEABLE
Valve,check
5365-00-701-7410SM-B-187356 INTERCHANGEABLE
Spacer,plate
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
2910-00-980-229011658 INTERCHANGEABLE
Weight,governor
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
3110-01-173-6512 INTERCHANGEABLE
Bearing,ball,annular
4820-01-252-9236 INTERCHANGEABLE
Valve,check
6505-01-573-6397NDC00143-9872-01 INTERCHANGEABLE
Propranolol Hydrochloride Inject
Hikma Pharmaceuticals Usa Inc.
Cross-Reference Index
Part NumberManufacturer
11658 PRIMARY Westerbeke Corporation (USA)
Related Parts
5310-00-127-8543INTERCHANGEABLE
NUT,SPECIAL
5950-00-327-9323INTERCHANGEABLE
SATURABLE REACTOR
986117-1B
2940-00-350-5541INTERCHANGEABLE
TUBE
B11658
4820-00-442-7222INTERCHANGEABLE
VALVE,CHECK
5365-00-701-7410INTERCHANGEABLE
SPACER,PLATE
SM-B-187356
2910-00-980-2290INTERCHANGEABLE
WEIGHT,GOVERNOR
11658
3110-01-173-6512INTERCHANGEABLE
BEARING,BALL,ANNULAR
4820-01-252-9236INTERCHANGEABLE
VALVE,CHECK
6505-01-573-6397INTERCHANGEABLE
PROPRANOLOL HYDROCHLORIDE INJECT
NDC00143-9872-01

Frequently Asked Questions

What is NSN 4320-01-130-8776?

NSN 4320-01-130-8776 is a Pump,rotary, manufactured by Westerbeke Corporation, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-130-8776?

NSN 4320-01-130-8776 has 1 cross-referenced part number: 11658 (Westerbeke Corporation).

What NSN replaces 4320-01-130-8776?

There are 9 known substitutes for 4320-01-130-8776: 5310-00-127-8543, 5950-00-327-9323, 2940-00-350-5541 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11658?

Key specifications for 11658: Rotary Pump Design: GEAR; End Item Identification: WESTERBEKE MODEL FOUR-107 WHALEBOAT DIESEL ENGINE. 2 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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