PartsTable TECHNICAL DATA SHEET

JULY 2026Technical Data Sheet

PFF5556Filter Element,fluid

Name: PFF5556
SKU: 2940-01-566-9171

Parker-Hannifin Corporation Dba Racor Division Div Racor Division · NSN 2940-01-566-9171 · FSC 2940 · No Item Name Available

Verified by PartsTable

NSN 2940-01-566-9171 — this item is cataloged by the U.S. Government under National Stock Number 2940-01-566-9171. Primary manufacturer part number: PFF5556.

2940-01-566-9171 — No Item Name Available illustration

Features

Filter Element,fluid — FSC 2940
6 verified cross-references
Primary manufacturer: Parker-Hannifin Corporation Dba Racor Division Div Racor Division

Applications

Fluid filtration and purification
Engine intake air cleaning
Hydraulic system protection

General Description

The Filter Element,fluid, cataloged under National Stock Number 2940-01-566-9171, is classified within Federal Supply Class 2940 (No Item Name Available) of the Engine Accessories group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Racor Division Div Racor Division. This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts

Item Name	Filter Element,fluid
FSC / FSG	2940 — No Item Name Available (FSG 29)
Manufacturers	Groupe Hifi (CAGE FAUM1); Parker-Hannifin Corporation Dba Racor Division Div Racor Division (CAGE 55752); Nd Defense Llc (CAGE 338X5); Wix Corp (CAGE 79396)

Technical Specifications

Parameter	Value
NSN	2940-01-566-9171
Primary Part Number	PFF5556
Item Name	Filter Element,fluid
FSC / FSG	2940 / 29 — No Item Name Available
Manufacturer	Parker-Hannifin Corporation Dba Racor Division Div Racor Division
Status	ACTIVE

Lifecycle & Compliance

Acquisition Status	ACTIVE
HAZMAT	No

⇄ Verified Substitutes 12

3110-00-157-3727 INTERCHANGEABLE

Bearing,ball,thrust

5935-00-201-8018230 INTERCHANGEABLE

Plug,telephone

Switchcraft Inc.

4330-00-251-6398 INTERCHANGEABLE

Filter Element,fluid

4030-00-262-1791PF42 INTERCHANGEABLE

Thimble,rope

Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir

5950-00-448-039732457 INTERCHANGEABLE

Transformer,power Autotransforme

Freed Transformer Co

5360-00-619-057193 INTERCHANGEABLE

Spring,helical,compression

Watts Regulator Company

5950-01-012-13646595 INTERCHANGEABLE

Transformer,power Autotransforme

Oeco, Llc Dba Pacific Scientific Oeco Div Fire Safety and Power Systems

5325-01-100-01806595 INTERCHANGEABLE

Ring,retaining

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor

4720-01-346-46926595M3A-174-174 INTERCHANGEABLE

Hose Assembly,nonmetallic

Transdigm Inc Div Adelwiggins Group

2940-01-438-490146595 INTERCHANGEABLE

Filter Element,intake Air Cleane

Wix Corp

Cross-Reference Index

Part Number	Manufacturer
SN 40751	Groupe Hifi (FRA)
32457	Parker-Hannifin Corporation Dba Racor Division Div Racor Division (USA)
1873910C91	Nd Defense Llc (USA)
PFF5556 PRIMARY	Parker-Hannifin Corporation Dba Racor Division Div Racor Division (USA)
6595	Wix Corp (USA)
1873910C92	Nd Defense Llc (USA)

Related Parts

3110-00-157-3727INTERCHANGEABLE

BEARING,BALL,THRUST

5935-00-201-8018INTERCHANGEABLE

PLUG,TELEPHONE

230

4330-00-251-6398INTERCHANGEABLE

FILTER ELEMENT,FLUID

4030-00-262-1791INTERCHANGEABLE

THIMBLE,ROPE

PF42

5950-00-448-0397INTERCHANGEABLE

TRANSFORMER,POWER AUTOTRANSFORME

32457

5360-00-619-0571INTERCHANGEABLE

SPRING,HELICAL,COMPRESSION

93

5950-01-012-1364INTERCHANGEABLE

TRANSFORMER,POWER AUTOTRANSFORME

6595

5325-01-100-0180INTERCHANGEABLE

RING,RETAINING

6595

4720-01-346-4692INTERCHANGEABLE

HOSE ASSEMBLY,NONMETALLIC

6595M3A-174-174

2940-01-438-4901INTERCHANGEABLE

FILTER ELEMENT,INTAKE AIR CLEANE

46595

3040-01-468-7333INTERCHANGEABLE

AXLE,STRAIGHT

4720-01-481-2086INTERCHANGEABLE

HOSE ASSEMBLY,NONMETALLIC

94379M16B310-310

Frequently Asked Questions

What is NSN 2940-01-566-9171?

NSN 2940-01-566-9171 is a Filter Element,fluid, manufactured by Parker-Hannifin Corporation Dba Racor Division Div Racor Division, classified under FSC 2940 (No Item Name Available). Status: active.

What are the part numbers for NSN 2940-01-566-9171?

NSN 2940-01-566-9171 has 6 cross-referenced part numbers: SN 40751 (Groupe Hifi), 32457 (Parker-Hannifin Corporation Dba Racor Division Div Racor Division), 1873910C91 (Nd Defense Llc), PFF5556 (Parker-Hannifin Corporation Dba Racor Division Div Racor Division), 6595 (Wix Corp) and 1 more.

What NSN replaces 2940-01-566-9171?

There are 12 known substitutes for 2940-01-566-9171: 3110-00-157-3727, 5935-00-201-8018, 4330-00-251-6398 and 9 more. Verify interchangeability with system specifications before substitution.

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.

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