Plate, Valve, Pump4320-01-187-7640

NSN 4320-01-187-7640 · NIIN 011877640 · Part number 258977

Eaton Aerospace, Llc Dba Jackson South · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 62983

Government record, cited

NSN 4320-01-187-7640 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-187-7640. Manufacturer of record part number: 258977.

Also searched as 4320-01-187-7640 · 4320011877640 · NIIN 011877640 · 01-187-7640 · FSC 4320 Power and Hand Pumps · CAGE 62983 · 258977

Nearby stock numbers ← 4320-01-187-7594 Seal Assembly, Shaft, Spring Loade · 4320-01-187-7649 Housing, Liquid Pump →

Features

Plate,valve,pump — FSC 4320
General Characteristics Item Description: CAST IRON; RIGHT-HAND
1 manufacturer part number on file
Manufacturer of record: Eaton Aerospace, Llc Dba Jackson South

Identification

NSN: 4320-01-187-7640
NIIN: 011877640
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 258977
Manufacturer: Eaton Aerospace, Llc Dba Jackson South

General Description

The Plate,valve,pump, cataloged under National Stock Number 4320-01-187-7640, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Eaton Aerospace, Llc Dba Jackson South. Government technical data includes 1 specification, 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. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-187-7640
Primary Part Number	258977
Item Name	Plate,valve,pump
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Eaton Aerospace, Llc Dba Jackson South
Status	ACTIVE
General Characteristics Item Description	CAST IRON; RIGHT-HAND

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
258977 PRIMARY	Eaton Aerospace, Llc Dba Jackson South (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 4320-01-187-7640?

NSN 4320-01-187-7640 is a Plate,valve,pump, manufactured by Eaton Aerospace, Llc Dba Jackson South, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-187-7640?

NSN 4320-01-187-7640 has 1 manufacturer part number on file: 258977 (Eaton Aerospace, Llc Dba Jackson South).

What are the specifications of 258977?

Key specifications for 258977: General Characteristics Item Description: CAST IRON; RIGHT-HAND; End Item Identification: VICKERS MODEL PVB10 ROTARY PUMP. 1 specification is documented in the U.S. Government catalog.

Is NSN 4320-01-187-7640 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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