PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

42971Diaphragm Assy

Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems · NSN 4820-01-054-0052 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-054-0052 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-054-0052. Primary manufacturer part number: 42971.
Features
  • Diaphragm Assy — FSC 4820
  • General Characteristics Item Description: DIAPHRAGM MATL DUPONT NOMEX (HIGH TEMP NYLON) FABRIC NO. HT-5 IMPREGNATED AND COATED WITH LS-53 FLUOROSILICONE POLYMER BY DOW CORNING CORP,DISC MATL AND FINISH 6061-T6 AL ALY SHT PER QQ-A-250/11 OR 6061-T651 AL ALY BAR PER QQ-A-225/8 ANODIZE PER MIL-A-8625 TYPE-2; 1.500 IN. SQ IN
  • 1 verified cross-reference
  • Primary manufacturer: Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Diaphragm Assy, cataloged under National Stock Number 4820-01-054-0052, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-054-0052
Primary Part Number42971
Item NameDiaphragm Assy
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerEaton Corporation Dba Airframe Div Fuel & Motion Control Systems
StatusACTIVE
General Characteristics Item DescriptionDIAPHRAGM MATL DUPONT NOMEX (HIGH TEMP NYLON) FABRIC NO. HT-5 IMPREGNATED AND COATED WITH LS-53 FLUOROSILICONE POLYMER BY DOW CORNING CORP,DISC MATL AND FINISH 6061-T6 AL ALY SHT PER QQ-A-250/11 OR 6061-T651 AL ALY BAR PER QQ-A-225/8 ANODIZE PER MIL-A-8625 TYPE-2; 1.500 IN. SQ IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
3110-00-155-67460042971 INTERCHANGEABLE
Bearing,ball,annular
New Holland Construction
5360-00-237-5482271695PC3 INTERCHANGEABLE
Spring,helical,compression
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5310-00-293-660042971 INTERCHANGEABLE
Washer,flat
L3harris Technologies, Inc Div Space & Airborne Systems
5355-00-358-872542971 INTERCHANGEABLE
Knob
Chrysler Corp Service and Parts Opns
5965-00-945-844342971 INTERCHANGEABLE
Earphone
Yankee Telecommunication Laboratories Inc
5130-01-174-92454297-1 INTERCHANGEABLE
Drill,electric,portable
Milwaukee Electric Tool Corp Dba Milwaukee Electric Tools
3020-01-291-529442971 INTERCHANGEABLE
Gear Cluster
Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
5110-01-398-936800942971000 INTERCHANGEABLE
Chisel,cold,hand
Sears, Roebuck and Co. Dba Sears Div Sears Commercial
Cross-Reference Index
Part NumberManufacturer
42971 PRIMARY Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems (USA)
Related Parts
3110-00-155-6746INTERCHANGEABLE
BEARING,BALL,ANNULAR
0042971
5360-00-237-5482INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
271695PC3
5310-00-293-6600INTERCHANGEABLE
WASHER,FLAT
42971
5355-00-358-8725INTERCHANGEABLE
KNOB
42971
5965-00-945-8443INTERCHANGEABLE
EARPHONE
42971
5130-01-174-9245INTERCHANGEABLE
DRILL,ELECTRIC,PORTABLE
4297-1
3020-01-291-5294INTERCHANGEABLE
GEAR CLUSTER
42971
5110-01-398-9368INTERCHANGEABLE
CHISEL,COLD,HAND
00942971000

Frequently Asked Questions

What is NSN 4820-01-054-0052?

NSN 4820-01-054-0052 is a Diaphragm Assy, manufactured by Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-054-0052?

NSN 4820-01-054-0052 has 1 cross-referenced part number: 42971 (Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems).

What NSN replaces 4820-01-054-0052?

There are 8 known substitutes for 4820-01-054-0052: 3110-00-155-6746, 5360-00-237-5482, 5310-00-293-6600 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 42971?

Key specifications for 42971: General Characteristics Item Description: DIAPHRAGM MATL DUPONT NOMEX (HIGH TEMP NYLON) FABRIC NO. HT-5 IMPREGNATED AND COATED WITH LS-53 FLUOROSILICONE POLYMER BY DOW CORNING CORP,DISC MATL AND FINISH 6061-T6 AL ALY SHT PER QQ-A-250/11 OR 6061-T651 AL ALY BAR PER QQ-A-225/8 ANODIZE PER MIL-A-8625 TYPE-2; 1.500 IN. SQ IN; End Item Identification: F16. 2 total characteristics are documented in the Federal Logistics Information System.

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