PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

71065Seal,piston

Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator · NSN 1660-00-462-0231 · FSC 1660 · No Item Name Available
Verified by PartsTable
NSN 1660-00-462-0231 — this item is cataloged by the U.S. Government under National Stock Number 1660-00-462-0231. Primary manufacturer part number: 71065.
Features
  • Seal,piston — FSC 1660
  • General Characteristics Item Description: CORROSION RESISTING STEEL,CONDITION 303,QQ-S-764,PASSIVATED PERMIL-S-5002,0.248 IN. MIN,0.251 IN. MAX ID,0.416 IN. MIN,0.420 IN. MAXOD OF FLANGE ON BOTH ENDS,0.025 IN. MIN,0.035 IN. MAX THICKNESS OF FLANGEON ONE END,0.041 IN. MIN,0.046 IN. MAX THICKNESS OF FLANGE ON OTHER END,0.308 IN. MIN,0.312 IN. MAX OD,0.129 IN. MIN,0.135 IN. MAX DIA OFCOUNTERBORE THROUGH CENTER OF ONE END,0.094 IN. MIN,0.104 IN. MAX DISTANCEBETWEEN FLANGES,0.248 IN. MIN,0.251 IN. MAX BODY MATERIAL THICKNESS IN
  • FSC Application Data: REGULATOR,ACFT ENVIRONMENTAL SYSTEM,B52
  • 3 verified cross-references
  • Primary manufacturer: Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,piston, cataloged under National Stock Number 1660-00-462-0231, is classified within Federal Supply Class 1660 (No Item Name Available) of the Aircraft Components and Accessories group. The primary manufacturer of record is Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1660-00-462-0231
Primary Part Number71065
Item NameSeal,piston
FSC / FSG1660 / 16 — No Item Name Available
ManufacturerEaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator
StatusACTIVE
General Characteristics Item DescriptionCORROSION RESISTING STEEL,CONDITION 303,QQ-S-764,PASSIVATED PERMIL-S-5002,0.248 IN. MIN,0.251 IN. MAX ID,0.416 IN. MIN,0.420 IN. MAXOD OF FLANGE ON BOTH ENDS,0.025 IN. MIN,0.035 IN. MAX THICKNESS OF FLANGEON ONE END,0.041 IN. MIN,0.046 IN. MAX THICKNESS OF FLANGE ON OTHER END,0.308 IN. MIN,0.312 IN. MAX OD,0.129 IN. MIN,0.135 IN. MAX DIA OFCOUNTERBORE THROUGH CENTER OF ONE END,0.094 IN. MIN,0.104 IN. MAX DISTANCEBETWEEN FLANGES,0.248 IN. MIN,0.251 IN. MAX BODY MATERIAL THICKNESS IN
FSC Application DataREGULATOR,ACFT ENVIRONMENTAL SYSTEM,B52
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5970-00-035-510010505786 INTERCHANGEABLE
Insulator
General Dynamics Land Systems Canadacorp
3110-00-155-6511NU307ECP INTERCHANGEABLE
Bearing,roller,cylindrical
Skf Usa Inc.
4820-01-228-409571065-01 INTERCHANGEABLE
Body,valve
Griswold Industries Dba Cla-Val Co
4820-01-515-30152HA704 INTERCHANGEABLE
Cartridge,shut-Off Valve
Oshkosh Defense Llc
5310-01-557-056771065 INTERCHANGEABLE
Washer,lock
Fastenal Company Dba Fastenal Co
5110-01-695-0669 INTERCHANGEABLE
Saw,hand,crosscut
Cross-Reference Index
Part NumberManufacturer
71065 Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator (USA)
71065 Pti Technologies Inc. (USA)
71065 Vacco Industries (USA)
Related Parts
5970-00-035-5100INTERCHANGEABLE
INSULATOR
10505786
3110-00-155-6511INTERCHANGEABLE
BEARING,ROLLER,CYLINDRICAL
NU307ECP
4820-01-228-4095INTERCHANGEABLE
BODY,VALVE
71065-01
4820-01-515-3015INTERCHANGEABLE
CARTRIDGE,SHUT-OFF VALVE
2HA704
5310-01-557-0567INTERCHANGEABLE
WASHER,LOCK
71065
5110-01-695-0669INTERCHANGEABLE
SAW,HAND,CROSSCUT

Frequently Asked Questions

What is NSN 1660-00-462-0231?

NSN 1660-00-462-0231 is a Seal,piston, manufactured by Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator, classified under FSC 1660 (No Item Name Available). Status: active.

What are the part numbers for NSN 1660-00-462-0231?

NSN 1660-00-462-0231 has 3 cross-referenced part numbers: 71065 (Eaton Aerospace Llc Dba Sterer Engineering Div Valve & Actuator), 71065 (Pti Technologies Inc.), 71065 (Vacco Industries).

What NSN replaces 1660-00-462-0231?

There are 6 known substitutes for 1660-00-462-0231: 5970-00-035-5100, 3110-00-155-6511, 4820-01-228-4095 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 71065?

Key specifications for 71065: General Characteristics Item Description: CORROSION RESISTING STEEL,CONDITION 303,QQ-S-764,PASSIVATED PERMIL-S-5002,0.248 IN. MIN,0.251 IN. MAX ID,0.416 IN. MIN,0.420 IN. MAXOD OF FLANGE ON BOTH ENDS,0.025 IN. MIN,0.035 IN. MAX THICKNESS OF FLANGEON ONE END,0.041 IN. MIN,0.046 IN. MAX THICKNESS OF FLANGE ON OTHER END,0.308 IN. MIN,0.312 IN. MAX OD,0.129 IN. MIN,0.135 IN. MAX DIA OFCOUNTERBORE THROUGH CENTER OF ONE END,0.094 IN. MIN,0.104 IN. MAX DISTANCEBETWEEN FLANGES,0.248 IN. MIN,0.251 IN. MAX BODY MATERIAL THICKNESS IN; FSC Application Data: REGULATOR,ACFT ENVIRONMENTAL SYSTEM,B52. 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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