General Characteristics Item Description: CAST IRON,2.000 IN. CENTER HOLE,1.750 IN. THK,TWO 0.265 IN. DIA MOUNTING HOLES 7.500 IN. CENTER TO CENTER IN
Identification
NSN: 4320-00-412-1858
NIIN: 004121858
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
General Description
The Volute,pump, cataloged under National Stock Number 4320-00-412-1858, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. Government technical data includes 1 specification, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 6 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
4320-00-412-1858
Item Name
Volute,pump
FSC / FSG
4320 / 43 — Power and Hand Pumps
Status
ACTIVE
General Characteristics Item Description
CAST IRON,2.000 IN. CENTER HOLE,1.750 IN. THK,TWO 0.265 IN. DIA MOUNTING HOLES 7.500 IN. CENTER TO CENTER IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items6
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5950-01-030-980418095POSSIBLE MATCH
REACTOR
Possible match (shared part number)Torotel, Inc. Div Torotel Products, Inc.
5935-01-040-0471ST5M1301-2POSSIBLE MATCH
CONNECTOR,RECEPTACLE,ELECTRICAL
Possible match (shared part number)The Boeing Company Div Defense
5950-01-104-7476POSSIBLE MATCH
TRANSFORMER,POWER
Possible match (shared part number)
5365-01-302-933118095POSSIBLE MATCH
PLUG,MACHINE THREAD
Possible match (shared part number)Cadillac Gage Textron Inc.
5905-01-396-75680180950002POSSIBLE MATCH
RESISTOR,FIXED,FILM
Possible match (shared part number)Riimic, Llc Dba Sunair Electronics
5995-01-502-549318095POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
Possible match (shared part number)The First Electronics Corporation
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
18095
3/2Design control — primary reference
U.S. Government activity
Related Parts
5950-01-030-9804POSSIBLE MATCH
REACTOR
18095
5935-01-040-0471POSSIBLE MATCH
CONNECTOR,RECEPTACLE,ELECTRICAL
ST5M1301-2
5950-01-104-7476POSSIBLE MATCH
TRANSFORMER,POWER
5365-01-302-9331POSSIBLE MATCH
PLUG,MACHINE THREAD
18095
5905-01-396-7568POSSIBLE MATCH
RESISTOR,FIXED,FILM
0180950002
5995-01-502-5493POSSIBLE MATCH
CABLE ASSEMBLY,SPECIAL PURPOSE,E
18095
Frequently Asked Questions
What is NSN 4320-00-412-1858?
NSN 4320-00-412-1858 is a Volute,pump, classified under FSC 4320, Power and Hand Pumps. Status: active.
What NSN replaces 4320-00-412-1858?
6 possible matches (shared part number, not a government interchangeability claim): 5950-01-030-9804, 5935-01-040-0471, 5950-01-104-7476. Verify interchangeability with system specifications before substitution.
What are the specifications of 4320-00-412-1858?
Key specifications for 4320-00-412-1858: General Characteristics Item Description: CAST IRON,2.000 IN. CENTER HOLE,1.750 IN. THK,TWO 0.265 IN. DIA MOUNTING HOLES 7.500 IN. CENTER TO CENTER IN. 1 specification is documented in the U.S. Government catalog.
Is NSN 4320-00-412-1858 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.