PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM C612 TY2CT1Insulation Felt,thermal

General Services Administration Federal Supply Service · NSN 5640-00-242-6032 · FSC 5640 · No Item Name Available
Verified by PartsTable
NSN 5640-00-242-6032 — this item is cataloged by the U.S. Government under National Stock Number 5640-00-242-6032. Primary manufacturer part number: ASTM C612 TY2CT1.
Features
  • Insulation Felt,thermal — FSC 5640
  • Width: 24.000 INCHES NOMINAL IN
  • Thickness: 1.000 INCHES NOMINAL IN
  • Length: 48.000 INCHES NOMINAL IN
  • Nondefinitive Spec/std Data: 2 TYPE AND 1 CATEGORY
  • Material: GLASS FIBER LOCATION NOT OTHERWISE SPECIFIED
  • Thread Bound Construction Feature: NOT INCLUDED
  • Environmental Attribute Code: COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - BUILDING INSULATION PRODUCTS
Applications
  • Applications requiring Glass Fiber Location Not Otherwise Specified construction
General Description

The Insulation Felt,thermal, cataloged under National Stock Number 5640-00-242-6032, is classified within Federal Supply Class 5640 (No Item Name Available) of the Construction and Building Materials group. The primary manufacturer of record is General Services Administration Federal Supply Service. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5640-00-242-6032
Primary Part NumberASTM C612 TY2CT1
Item NameInsulation Felt,thermal
FSC / FSG5640 / 56 — No Item Name Available
ManufacturerGeneral Services Administration Federal Supply Service
StatusACTIVE
Width24.000 INCHES NOMINAL IN
Thickness1.000 INCHES NOMINAL IN
Length48.000 INCHES NOMINAL IN
Nondefinitive Spec/std Data2 TYPE AND 1 CATEGORY
MaterialGLASS FIBER LOCATION NOT OTHERWISE SPECIFIED
Thread Bound Construction FeatureNOT INCLUDED
Environmental Attribute CodeCOMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - BUILDING INSULATION PRODUCTS
Maximum Thermal Conductivity0.44 AT 300 DEG FARENHEIT
Resin TreatmentNOT INCLUDED
Interwoven Construction FeatureNOT INCLUDED
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5640-00-079-3360 INTERCHANGEABLE
Insulation Board,thermal
5640-00-242-6034 INTERCHANGEABLE
Insulation Felt,thermal
5640-00-267-6768 INTERCHANGEABLE
Insulation Block,thermal
5640-00-281-6918 INTERCHANGEABLE
Insulation Board,thermal
5640-01-237-66088337040-1 INTERCHANGEABLE
Insulation Board,thermal
Warner Robins Air Logistics Center
Cross-Reference Index
Part NumberManufacturer
ASTM C612 TY2CT1 General Services Administration Federal Supply Service (USA)
ASTM C612 American Society for Testing and Materials Dba Astm International (USA)
MIL-I-15475 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ASTM C612 CL3 General Services Administration Federal Supply Service (USA)
Related Parts
5640-00-079-3360INTERCHANGEABLE
INSULATION BOARD,THERMAL
5640-00-242-6034INTERCHANGEABLE
INSULATION FELT,THERMAL
5640-00-267-6768INTERCHANGEABLE
INSULATION BLOCK,THERMAL
5640-00-281-6918INTERCHANGEABLE
INSULATION BOARD,THERMAL
5640-01-237-6608INTERCHANGEABLE
INSULATION BOARD,THERMAL
8337040-1

Frequently Asked Questions

What is NSN 5640-00-242-6032?

NSN 5640-00-242-6032 is a Insulation Felt,thermal, manufactured by General Services Administration Federal Supply Service, classified under FSC 5640 (No Item Name Available). Status: active.

What are the part numbers for NSN 5640-00-242-6032?

NSN 5640-00-242-6032 has 4 cross-referenced part numbers: ASTM C612 TY2CT1 (General Services Administration Federal Supply Service), ASTM C612 (American Society for Testing and Materials Dba Astm International), MIL-I-15475 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), ASTM C612 CL3 (General Services Administration Federal Supply Service).

What NSN replaces 5640-00-242-6032?

There are 5 known substitutes for 5640-00-242-6032: 5640-00-079-3360, 5640-00-242-6034, 5640-00-267-6768 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM C612 TY2CT1?

Key specifications for ASTM C612 TY2CT1: Width: 24.000 INCHES NOMINAL IN; Thickness: 1.000 INCHES NOMINAL IN; Length: 48.000 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 2 TYPE AND 1 CATEGORY. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com