PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31891Knob,pump

Liquid Metronics Inc · NSN 4610-01-439-7580 · FSC 4610 · No Item Name Available
Verified by PartsTable
NSN 4610-01-439-7580 — this item is cataloged by the U.S. Government under National Stock Number 4610-01-439-7580. Primary manufacturer part number: 31891.
Features
  • Knob,pump — FSC 4610
  • 2 verified cross-references
  • Primary manufacturer: Liquid Metronics Inc
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
General Description

The Knob,pump, cataloged under National Stock Number 4610-01-439-7580, is classified within Federal Supply Class 4610 (No Item Name Available) of the Water Purification and Sewage Treatment group. The primary manufacturer of record is Liquid Metronics Inc. This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameKnob,pump
FSC / FSG4610 — No Item Name Available (FSG 46)
ManufacturersLiquid Metronics Inc (CAGE 62866)
Technical Specifications
ParameterValue
NSN4610-01-439-7580
Primary Part Number31891
Item NameKnob,pump
FSC / FSG4610 / 46 — No Item Name Available
ManufacturerLiquid Metronics Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5940-00-143-4771MS25036-103 INTERCHANGEABLE
Terminal,lug
Sae International Dba Sae International
2530-00-540-269954B6228 INTERCHANGEABLE
Tie Rod End,steering
Air Force Lifecycle Management Center Electronic Components (aflcmc/ezss)
5325-00-559-493631891 INTERCHANGEABLE
Ring,retaining
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5365-01-121-5222 INTERCHANGEABLE
Spacer,tappet
4730-01-166-202725891 INTERCHANGEABLE
Union,pipe
Paccar Winch Inc Dba Paccar Winch Division
5930-01-177-5251411507-001 INTERCHANGEABLE
Push Button
Gardner Denver Water Jetting Systems, Inc. Div Engineered Package Group
5110-01-367-72431916 INTERCHANGEABLE
Stripper,wire,hand
Greenlee Textron Inc.
6210-01-503-8424 INTERCHANGEABLE
Light,beacon
6210-01-505-6520B6798-1GS INTERCHANGEABLE
Light,beacon
Carlisle & Finch Co
5977-01-505-87463918 INTERCHANGEABLE
Holder,electrical Contact Brush
Carlisle & Finch Co
Cross-Reference Index
Part NumberManufacturer
25891 Liquid Metronics Inc (USA)
31891 PRIMARY Liquid Metronics Inc (USA)
Related Parts
5940-00-143-4771INTERCHANGEABLE
TERMINAL,LUG
MS25036-103
2530-00-540-2699INTERCHANGEABLE
TIE ROD END,STEERING
54B6228
5325-00-559-4936INTERCHANGEABLE
RING,RETAINING
31891
5365-01-121-5222INTERCHANGEABLE
SPACER,TAPPET
4730-01-166-2027INTERCHANGEABLE
UNION,PIPE
25891
5930-01-177-5251INTERCHANGEABLE
PUSH BUTTON
411507-001
5110-01-367-7243INTERCHANGEABLE
STRIPPER,WIRE,HAND
1916
6210-01-503-8424INTERCHANGEABLE
LIGHT,BEACON
6210-01-505-6520INTERCHANGEABLE
LIGHT,BEACON
B6798-1GS
5977-01-505-8746INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
3918
6515-01-604-1809INTERCHANGEABLE
SUTURE,NONABSORBABLE,SURGICAL
K832H

Frequently Asked Questions

What is NSN 4610-01-439-7580?

NSN 4610-01-439-7580 is a Knob,pump, manufactured by Liquid Metronics Inc, classified under FSC 4610 (No Item Name Available). Status: active.

What are the part numbers for NSN 4610-01-439-7580?

NSN 4610-01-439-7580 has 2 cross-referenced part numbers: 25891 (Liquid Metronics Inc), 31891 (Liquid Metronics Inc).

What NSN replaces 4610-01-439-7580?

There are 11 known substitutes for 4610-01-439-7580: 5940-00-143-4771, 2530-00-540-2699, 5325-00-559-4936 and 8 more. Verify interchangeability with system specifications before substitution.

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