PartsTable TECHNICAL DATA SHEET

NSN 4320-01-321-5504Government record, cited

Motor, Hydraulic4320-01-321-5504

NSN 4320-01-321-5504 · NIIN 013215504 · Part number 21-3502AN-FFBF

Attica Hydraulic Exchange Corp. Div Attica Hydraulic Exchange · FSC 4320 — Power and Hand Pumps · FSG 43 — Pumps and Compressors · CAGE 0VWT6

Government record, cited

NSN 4320-01-321-5504 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-321-5504. Manufacturer of record part number: 21-3502AN-FFBF.

Also searched as 4320-01-321-5504 · 4320013215504 · NIIN 013215504 · 01-321-5504 · FSC 4320 Power and Hand Pumps · CAGE 0VWT6 · 21-3502AN-FFBF

Nearby stock numbers ← 4320-01-321-5482 · 4320-01-321-5507 Impeller, Pump, Centrifugal →

Features

Motor,hydraulic — FSC 4320
Displacement Type: CONSTANT
Drive Shaft Type: SPLINED, STRAIGHT EXTERNAL
Spline Quantity: 14
1 manufacturer part number on file
Manufacturer of record: Attica Hydraulic Exchange Corp. Div Attica Hydraulic Exchange

Identification

NSN: 4320-01-321-5504
NIIN: 013215504
FSC: 4320 — Power and Hand Pumps
FSG: 43 — Pumps and Compressors
Primary part number: 21-3502AN-FFBF
Manufacturer: Attica Hydraulic Exchange Corp. Div Attica Hydraulic Exchange

General Description

The Motor,hydraulic, cataloged under National Stock Number 4320-01-321-5504, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Attica Hydraulic Exchange Corp. Div Attica Hydraulic Exchange. Government technical data includes 3 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.

Technical Specifications

Parameter	Value
NSN	4320-01-321-5504
Primary Part Number	21-3502AN-FFBF
Item Name	Motor,hydraulic
FSC / FSG	4320 / 43 — Power and Hand Pumps
Manufacturer	Attica Hydraulic Exchange Corp. Div Attica Hydraulic Exchange
Status	ACTIVE
Displacement Type	CONSTANT
Drive Shaft Type	SPLINED, STRAIGHT EXTERNAL
Spline Quantity	14

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
21-3502AN-FFBF PRIMARY	Attica Hydraulic Exchange Corp. Div Attica Hydraulic Exchange (USA)

Reference documents

Reference	Meaning
21-3502AN-FFBF	3/9 Design control — primary reference Sauer-Sundstrand Hydro-Transmission Div

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 4320-01-321-5504?

NSN 4320-01-321-5504 is a Motor,hydraulic, manufactured by Attica Hydraulic Exchange Corp. Div Attica Hydraulic Exchange, classified under FSC 4320, Power and Hand Pumps. Status: active.

What part numbers are listed for NSN 4320-01-321-5504?

NSN 4320-01-321-5504 has 1 manufacturer part number on file: 21-3502AN-FFBF (Attica Hydraulic Exchange Corp. Div Attica Hydraulic Exchange).

What are the specifications of 21-3502AN-FFBF?

Key specifications for 21-3502AN-FFBF: Displacement Type: CONSTANT; Drive Shaft Type: SPLINED, STRAIGHT EXTERNAL; Spline Quantity: 14. 3 specifications are documented in the U.S. Government catalog.

Is NSN 4320-01-321-5504 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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