PartsTable TECHNICAL DATA SHEET

NSN 4320-01-507-3977Government record, cited

Piston, Pump4320-01-507-3977

NSN 4320-01-507-3977 · NIIN 015073977 · Part number R902028620

Bosch Rexroth Corporation Div Industrial Hydraulics · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 27005

Government record, cited

NSN 4320-01-507-3977 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-507-3977. Manufacturer of record part number: R902028620.

Also searched as 4320-01-507-3977 · 4320015073977 · NIIN 015073977 · 01-507-3977 · FSC 4320 Power and Hand Pumps · CAGE 27005 · R902028620 · 426817-201.17.07.92 · 426817-201.17.0

Nearby stock numbers ← 4320-01-507-3882 Pump, Hydraulic · 4320-01-507-4214 Ring, Wearing →

Features

Piston,pump — FSC 4320
1 manufacturer part number on file
Manufacturer of record: Bosch Rexroth Corporation Div Industrial Hydraulics

Identification

NSN: 4320-01-507-3977
NIIN: 015073977
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: R902028620
Manufacturer: Bosch Rexroth Corporation Div Industrial Hydraulics

General Description

The Piston,pump, cataloged under National Stock Number 4320-01-507-3977, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Bosch Rexroth Corporation Div Industrial Hydraulics. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog.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	4320-01-507-3977
Primary Part Number	R902028620
Item Name	Piston,pump
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Bosch Rexroth Corporation Div Industrial Hydraulics
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
R902028620 PRIMARY	Bosch Rexroth Corporation Div Industrial Hydraulics (USA)

Reference documents

Reference	Meaning
426817-201.17.07.92	5/9 Secondary reference Bosch Rexroth Corporation Div Industrial Hydraulics
426817-201.17.0	C/1 Advisory reference — outside the item-of-supply concept Zf Industrieantriebe Witten Gmbh

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 4320-01-507-3977?

NSN 4320-01-507-3977 is a Piston,pump, manufactured by Bosch Rexroth Corporation Div Industrial Hydraulics, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-507-3977?

NSN 4320-01-507-3977 has 1 manufacturer part number on file: R902028620 (Bosch Rexroth Corporation Div Industrial Hydraulics).

What are the specifications of R902028620?

Key specifications for R902028620: Part Name Assigned by Controlling Agency: PISTON; End Item Identification: CRANE, BOAT & AIRCRAFT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-507-3977 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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