Rotor, Pump4320-01-304-6972

NSN 4320-01-304-6972 · NIIN 013046972 · Part number R257

Circor Naval Solutions Llc Dba Warren Pumps · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 63857

Government record, cited

NSN 4320-01-304-6972 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-304-6972. Manufacturer of record part number: R257.

Also searched as 4320-01-304-6972 · 4320013046972 · NIIN 013046972 · 01-304-6972 · FSC 4320 Power and Hand Pumps · CAGE 63857 · R257

Nearby stock numbers ← 4320-01-304-6924 Pump Unit, Centrifugal · 4320-01-304-6973 →

Features

Rotor,pump — FSC 4320
1 manufacturer part number on file
Manufacturer of record: Circor Naval Solutions Llc Dba Warren Pumps

Identification

NSN: 4320-01-304-6972
NIIN: 013046972
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: R257
Manufacturer: Circor Naval Solutions Llc Dba Warren Pumps

General Description

The Rotor,pump, cataloged under National Stock Number 4320-01-304-6972, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-304-6972
Primary Part Number	R257
Item Name	Rotor,pump
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Circor Naval Solutions Llc Dba Warren Pumps
Status	ACTIVE

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
R257 PRIMARY	Circor Naval Solutions Llc Dba Warren Pumps (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 4320-01-304-6972?

NSN 4320-01-304-6972 is a Rotor,pump, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-304-6972?

NSN 4320-01-304-6972 has 1 manufacturer part number on file: R257 (Circor Naval Solutions Llc Dba Warren Pumps).

What are the specifications of R257?

Key specifications for R257: End Item Identification: PUMP CTFGL 13500GPM 5PS 875RPM RPM. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-304-6972 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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