PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1976Impeller,pump,centrifugal

Brinkley Technology Group Llc Dba Hercules Manufacturing · NSN 4320-00-364-6446 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-364-6446 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-364-6446. Primary manufacturer part number: 1976.
Features
  • Impeller,pump,centrifugal — FSC 4320
  • Keyway Type: STRAIGHT
  • Blade Quantity: 6
  • Keyway Quantity: 1
  • Keyway Length: 2.248 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
  • Material: RUBBER AND COPPER ALLOY
  • Design Type: SINGLE WIDTH
  • Keyway Width: 0.182 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Applications requiring Rubber and Copper Alloy construction
General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-00-364-6446, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Brinkley Technology Group Llc Dba Hercules Manufacturing. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-364-6446
Primary Part Number1976
Item NameImpeller,pump,centrifugal
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerBrinkley Technology Group Llc Dba Hercules Manufacturing
StatusACTIVE
Keyway TypeSTRAIGHT
Blade Quantity6
Keyway Quantity1
Keyway Length2.248 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN
MaterialRUBBER AND COPPER ALLOY
Design TypeSINGLE WIDTH
Keyway Width0.182 INCHES MINIMUM AND 0.188 INCHES MAXIMUM IN
Overall Diameter1.995 INCHES MINIMUM AND 2.000 INCHES MAXIMUM IN
Keyway Depth0.084 INCHES MINIMUM AND 0.088 INCHES MAXIMUM IN
Blade TypeSTRAIGHT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4820-00-036-2491R639-9 INTERCHANGEABLE
Seat,valve
Derbyshire Machine & Tool Co
4730-00-127-88226848 INTERCHANGEABLE
Clamp,hose
Epicor Industries Inc Ideal Div
2815-00-146-7546 INTERCHANGEABLE
Tube,water
9540-00-148-0695 INTERCHANGEABLE
Channel,structural
6240-00-283-0147 INTERCHANGEABLE
Lamp,incandescent
4730-00-419-30861115950-1 INTERCHANGEABLE
Clamp,hose
Us Army Aviation and Missile Command
5977-00-424-97341976 INTERCHANGEABLE
Brush,electrical Contact
Kato Engineering Inc.
3110-00-516-5289203TF INTERCHANGEABLE
Bearing,ball,annular
Fag Bearings Corporation
5950-00-538-67736448-1 INTERCHANGEABLE
Coil,electrical
Te Connectivity Corporation
5325-00-637-4156 INTERCHANGEABLE
Grommet,nonmetallic
Cross-Reference Index
Part NumberManufacturer
75036PC83407B Hercules Engine Co Inc (USA)
75175DSPC27 Hercules Engine Co Inc (USA)
83407B Hercules Engine Co Inc (USA)
6448 Lear Siegler Inc Sherwood Div (USA)
83407B Lear Siegler Inc Sherwood Div (USA)
1976 Hercules Engine Co Inc (USA)
1976 PRIMARY Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
Related Parts
4820-00-036-2491INTERCHANGEABLE
SEAT,VALVE
R639-9
4730-00-127-8822INTERCHANGEABLE
CLAMP,HOSE
6848
2815-00-146-7546INTERCHANGEABLE
TUBE,WATER
9540-00-148-0695INTERCHANGEABLE
CHANNEL,STRUCTURAL
6240-00-283-0147INTERCHANGEABLE
LAMP,INCANDESCENT
4730-00-419-3086INTERCHANGEABLE
CLAMP,HOSE
1115950-1
5977-00-424-9734INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
1976
3110-00-516-5289INTERCHANGEABLE
BEARING,BALL,ANNULAR
203TF
5950-00-538-6773INTERCHANGEABLE
COIL,ELECTRICAL
6448-1
5325-00-637-4156INTERCHANGEABLE
GROMMET,NONMETALLIC
1650-00-670-5736INTERCHANGEABLE
BUSHING,PUMP
1976
5325-00-812-6740INTERCHANGEABLE
GROMMET,NONMETALLIC
A9D612

Frequently Asked Questions

What is NSN 4320-00-364-6446?

NSN 4320-00-364-6446 is a Impeller,pump,centrifugal, manufactured by Brinkley Technology Group Llc Dba Hercules Manufacturing, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-364-6446?

NSN 4320-00-364-6446 has 7 cross-referenced part numbers: 75036PC83407B (Hercules Engine Co Inc), 75175DSPC27 (Hercules Engine Co Inc), 83407B (Hercules Engine Co Inc), 6448 (Lear Siegler Inc Sherwood Div), 83407B (Lear Siegler Inc Sherwood Div) and 2 more.

What NSN replaces 4320-00-364-6446?

There are 12 known substitutes for 4320-00-364-6446: 4820-00-036-2491, 4730-00-127-8822, 2815-00-146-7546 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1976?

Key specifications for 1976: Keyway Type: STRAIGHT; Blade Quantity: 6; Keyway Quantity: 1; Keyway Length: 2.248 INCHES MINIMUM AND 2.250 INCHES MAXIMUM IN. 11 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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