Impeller, Pump, Centrifugal4320-01-416-3291

NSN 4320-01-416-3291 · NIIN 014163291 · Part number D-4074-2-2491-9.625 IN

Buffaloes Fire Pump Inc. Dba R B Pump Co · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 62503

Government record, cited

NSN 4320-01-416-3291 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-416-3291. Manufacturer of record part number: D-4074-2-2491-9.625 IN.

Also searched as 4320-01-416-3291 · 4320014163291 · NIIN 014163291 · 01-416-3291 · FSC 4320 Power and Hand Pumps · CAGE 62503 · D-4074-2-2491-9.625 IN · D-4074-2-2491-9IN

Nearby stock numbers ← 4320-01-416-3290 Pump Unit, Centrifugal · 4320-01-416-3302 Pump, Rotary →

Features

Impeller,pump,centrifugal — FSC 4320
Overall Diameter: 9.625 INCHES NOMINAL IN
2 manufacturer part numbers on file
Manufacturer of record: Buffaloes Fire Pump Inc. Dba R B Pump Co

Identification

NSN: 4320-01-416-3291
NIIN: 014163291
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: D-4074-2-2491-9.625 IN
Manufacturer: Buffaloes Fire Pump Inc. Dba R B Pump Co

General Description

The Impeller,pump,centrifugal, cataloged under National Stock Number 4320-01-416-3291, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Buffaloes Fire Pump Inc. Dba R B Pump Co. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-416-3291
Primary Part Number	D-4074-2-2491-9.625 IN
Item Name	Impeller,pump,centrifugal
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Buffaloes Fire Pump Inc. Dba R B Pump Co
Status	ACTIVE
Overall Diameter	9.625 INCHES NOMINAL 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

Cross-Reference Index

Part Number	Manufacturer
D-4074-2-2491-9.625 IN PRIMARY	Buffaloes Fire Pump Inc. Dba R B Pump Co (USA)
D-4074-2-2491-9IN PRIMARY	Buffaloes Fire Pump Inc. Dba R B Pump Co (USA)

No interchangeability data on file.

Other items in FSC 4320 — Power and Hand Pumps

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

4320-00-001-1633

4320-00-001-1633 · Item name not on file

4320-00-001-2628

RETAINER AND PIN

4320-00-001-2629

HOUSING AND PIN

4320-00-001-2630

PUMP,CENTRIFUGAL

4320-00-001-2631

4320-00-001-2631 · Item name not on file

4320-00-001-2632

4320-00-001-2632 · Item name not on file

4320-00-001-3377

4320-00-001-3377 · Item name not on file

4320-00-001-3384

4320-00-001-3384 · Item name not on file

Frequently Asked Questions

What is NSN 4320-01-416-3291?

NSN 4320-01-416-3291 is a Impeller,pump,centrifugal, manufactured by Buffaloes Fire Pump Inc. Dba R B Pump Co, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-416-3291?

NSN 4320-01-416-3291 has 2 manufacturer part numbers on file: D-4074-2-2491-9.625 IN (Buffaloes Fire Pump Inc. Dba R B Pump Co), D-4074-2-2491-9IN (Buffaloes Fire Pump Inc. Dba R B Pump Co).

What are the specifications of D-4074-2-2491-9.625 IN?

Key specifications for D-4074-2-2491-9.625 IN: Overall Diameter: 9.625 INCHES NOMINAL IN; End Item Identification: W/S FORRESTAL CLASS CV;PUMP,CENTRIFUGAL;BUFFALO PUMPS INC;MODEL D-4074. 1 specification is documented in the U.S. Government catalog.

Is NSN 4320-01-416-3291 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.

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