NSN 4320-00-403-9947 · NIIN 004039947 · Part number 100661
Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 76371
Government record, cited
NSN 4320-00-403-9947 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-403-9947. Manufacturer of record part number: 100661.
Also searched as4320-00-403-9947 ·
4320004039947 ·
NIIN 004039947 ·
00-403-9947 ·
FSC 4320 Power and Hand Pumps · CAGE 76371 · 100661
Manufacturer of record: Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc
Identification
NSN: 4320-00-403-9947
NIIN: 004039947
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 100661
Manufacturer: Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc
General Description
The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-403-9947, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc. Government technical data includes 3 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 7 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
4320-00-403-9947
Primary Part Number
100661
Item Name
Impeller,pump,centrifugal
FSC / FSG
4320 / 43 — Power and Hand Pumps
Manufacturer
Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc
Status
ACTIVE
Overall Diameter
5.176 INCHES NOMINAL IN
Blade Quantity
4
Material
COPPER ALLOY
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 Items7
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-00-692-3791100-661POSSIBLE MATCH
VALVE,SAFETY RELIEF
Possible match (shared part number)Aerocontrolex Group, Inc.
4720-00-845-2898POSSIBLE MATCH
HOSE,NONMETALLIC
Possible match (shared part number)
5940-00-983-6114POSSIBLE MATCH
TERMINAL BOARD
Possible match (shared part number)
6685-01-384-2451HP-004-040POSSIBLE MATCH
GAGE,DIFFERENTIAL,DIAL INDICATIN
Possible match (shared part number)Fluid Conditioning Products, Inc.
2920-01-385-8704100661POSSIBLE MATCH
TERMINAL BLOCK,ELECTRICAL
Possible match (shared part number)Datron World Communications, Inc.
6520-01-601-6714100-661POSSIBLE MATCH
ARCH WIRE,DENTAL
Possible match (shared part number)Ortho Organizers Inc
5935-01-674-5105TDG1026KS-C6APOSSIBLE MATCH
ADAPTER,CONNECTOR
Possible match (shared part number)Infinite Electronics International, Inc. Div L-Com
Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc (USA)
Related Parts
4820-00-692-3791POSSIBLE MATCH
VALVE,SAFETY RELIEF
100-661
4720-00-845-2898POSSIBLE MATCH
HOSE,NONMETALLIC
5940-00-983-6114POSSIBLE MATCH
TERMINAL BOARD
6685-01-384-2451POSSIBLE MATCH
GAGE,DIFFERENTIAL,DIAL INDICATIN
HP-004-040
2920-01-385-8704POSSIBLE MATCH
TERMINAL BLOCK,ELECTRICAL
100661
6520-01-601-6714POSSIBLE MATCH
ARCH WIRE,DENTAL
100-661
5935-01-674-5105POSSIBLE MATCH
ADAPTER,CONNECTOR
TDG1026KS-C6A
Frequently Asked Questions
What is NSN 4320-00-403-9947?
NSN 4320-00-403-9947 is a Impeller,pump,centrifugal, manufactured by Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
What part numbers are listed for NSN 4320-00-403-9947?
NSN 4320-00-403-9947 has 1 manufacturer part number on file: 100661 (Mechanical Equipment Company, Inc. Dba Mechanical Equipment Co Inc).
What NSN replaces 4320-00-403-9947?
7 possible matches (shared part number, not a government interchangeability claim): 4820-00-692-3791, 4720-00-845-2898, 5940-00-983-6114. Verify interchangeability with system specifications before substitution.
What are the specifications of 100661?
Key specifications for 100661: Overall Diameter: 5.176 INCHES NOMINAL IN; Blade Quantity: 4; Material: COPPER ALLOY. 3 specifications are documented in the U.S. Government catalog.
Is NSN 4320-00-403-9947 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.