PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20-1057Barrier,thermal Air

Wintec Llc · NSN 4330-01-049-5985 · FSC 4330 · No Item Name Available
Verified by PartsTable
NSN 4330-01-049-5985 — this item is cataloged by the U.S. Government under National Stock Number 4330-01-049-5985. Primary manufacturer part number: 20-1057.
Features
  • Barrier,thermal Air — FSC 4330
  • General Characteristics Item Description: POLYTETRAFLUOROETHYLENE IMPREGNATED SHEET RAYBESTOS; 2.500 IN.O/A W; 1.500 IN.H; 0.062 IN.THK; 2 HOLES 0.312 IN.DIA,LOCATED 1.625 IN.C TO C ALONG W,1.000 IN.C TO C ALONG H IN
  • 2 verified cross-references
  • Primary manufacturer: Wintec Llc
Applications
  • Hydraulic and pneumatic systems
  • Industrial process pumping
  • Military vehicle hydraulics
General Description

The Barrier,thermal Air, cataloged under National Stock Number 4330-01-049-5985, is classified within Federal Supply Class 4330 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Wintec Llc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4330-01-049-5985
Primary Part Number20-1057
Item NameBarrier,thermal Air
FSC / FSG4330 / 43 — No Item Name Available
ManufacturerWintec Llc
StatusACTIVE
General Characteristics Item DescriptionPOLYTETRAFLUOROETHYLENE IMPREGNATED SHEET RAYBESTOS; 2.500 IN.O/A W; 1.500 IN.H; 0.062 IN.THK; 2 HOLES 0.312 IN.DIA,LOCATED 1.625 IN.C TO C ALONG W,1.000 IN.C TO C ALONG H IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5985-00-459-5586 INTERCHANGEABLE
Mixer,crystal,coaxial
2840-01-026-7087 INTERCHANGEABLE
Seal,air,aircraft Gas Turbine En
4820-01-724-4506201057 INTERCHANGEABLE
Valve,regulating,fluid Pressure
Sauer Compressors Usa, Inc.
Cross-Reference Index
Part NumberManufacturer
34228-503PC23 Wintec Llc (USA)
20-1057 PRIMARY Wintec Llc (USA)
Related Parts
5985-00-459-5586INTERCHANGEABLE
MIXER,CRYSTAL,COAXIAL
2840-01-026-7087INTERCHANGEABLE
SEAL,AIR,AIRCRAFT GAS TURBINE EN
4820-01-724-4506INTERCHANGEABLE
VALVE,REGULATING,FLUID PRESSURE
201057

Frequently Asked Questions

What is NSN 4330-01-049-5985?

NSN 4330-01-049-5985 is a Barrier,thermal Air, manufactured by Wintec Llc, classified under FSC 4330 (No Item Name Available). Status: active.

What are the part numbers for NSN 4330-01-049-5985?

NSN 4330-01-049-5985 has 2 cross-referenced part numbers: 34228-503PC23 (Wintec Llc), 20-1057 (Wintec Llc).

What NSN replaces 4330-01-049-5985?

There are 3 known substitutes for 4330-01-049-5985: 5985-00-459-5586, 2840-01-026-7087, 4820-01-724-4506. Verify interchangeability with system specifications before substitution.

What are the specifications of 20-1057?

Key specifications for 20-1057: General Characteristics Item Description: POLYTETRAFLUOROETHYLENE IMPREGNATED SHEET RAYBESTOS; 2.500 IN.O/A W; 1.500 IN.H; 0.062 IN.THK; 2 HOLES 0.312 IN.DIA,LOCATED 1.625 IN.C TO C ALONG W,1.000 IN.C TO C ALONG H IN. 1 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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