PartsTable TECHNICAL DATA SHEET

NSN 4320-01-299-8522Government record, cited

Piston, Pump4320-01-299-8522

NSN 4320-01-299-8522 · NIIN 012998522 · Part number 99077-P001

Jaeco Fluid Systems, Inc Dba Jaeco-Stewart · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 30863

Government record, cited

NSN 4320-01-299-8522 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-299-8522. Manufacturer of record part number: 99077-P001.

Also searched as 4320-01-299-8522 · 4320012998522 · NIIN 012998522 · 01-299-8522 · FSC 4320 Power and Hand Pumps · CAGE 30863 · 99077-P001 · 00077P001 · A-0131 ITEM 6 · 00220 ITEM 6

Nearby stock numbers ← 4320-01-299-8486 Housing, Liquid Pump · 4320-01-299-8781 Pump Unit, Rotary →

Features

Piston,pump — FSC 4320
2 manufacturer part numbers on file
Manufacturer of record: Jaeco Fluid Systems, Inc Dba Jaeco-Stewart

Identification

NSN: 4320-01-299-8522
NIIN: 012998522
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 99077-P001
Manufacturer: Jaeco Fluid Systems, Inc Dba Jaeco-Stewart

General Description

The Piston,pump, cataloged under National Stock Number 4320-01-299-8522, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Jaeco Fluid Systems, Inc Dba Jaeco-Stewart. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-299-8522
Primary Part Number	99077-P001
Item Name	Piston,pump
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Jaeco Fluid Systems, Inc Dba Jaeco-Stewart
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
00220 ITEM 6	Jaeco Fluid Systems, Inc Dba Jaeco-Stewart (USA)
99077-P001 PRIMARY	Jaeco Fluid Systems, Inc Dba Jaeco-Stewart (USA)

Reference documents

Reference	Meaning
00077P001	5/9 Secondary reference Jaeco Fluid Systems, Inc Dba Jaeco-Stewart
A-0131 ITEM 6	5/9 Secondary reference Jaeco Fluid Systems, Inc Dba Jaeco-Stewart

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 4320-01-299-8522?

NSN 4320-01-299-8522 is a Piston,pump, manufactured by Jaeco Fluid Systems, Inc Dba Jaeco-Stewart, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-299-8522?

NSN 4320-01-299-8522 has 2 manufacturer part numbers on file: 00220 ITEM 6 (Jaeco Fluid Systems, Inc Dba Jaeco-Stewart), 99077-P001 (Jaeco Fluid Systems, Inc Dba Jaeco-Stewart).

What are the specifications of 99077-P001?

Key specifications for 99077-P001: End Item Identification: JAECO PUMP CO PLUNGER,1/2 IN. METERING PUMP IN. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-299-8522 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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