PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

204012Insulation Sleeving,thermal

Heatshield Products, Inc · NSN 5640-01-706-5689 · FSC 5640 · No Item Name Available
Verified by PartsTable
NSN 5640-01-706-5689 — this item is cataloged by the U.S. Government under National Stock Number 5640-01-706-5689. Primary manufacturer part number: 204012.
Features
  • Insulation Sleeving,thermal — FSC 5640
  • Length: 120.0 INCHES NOMINAL IN
  • Inside Diameter: 0.50 INCHES NOMINAL IN
  • Temp Rating: 1100.0 FAHRENHEIT NOMINAL DEGF
  • Flammability Rating: INCOMBUSTIBLE
  • Flexibility: FLEXIBLE
  • 1 verified cross-reference
  • Primary manufacturer: Heatshield Products, Inc
Applications
  • Building construction and repair
  • Infrastructure development
  • Road and bridge materials
General Description

The Insulation Sleeving,thermal, cataloged under National Stock Number 5640-01-706-5689, is classified within Federal Supply Class 5640 (No Item Name Available) of the Construction and Building Materials group. The primary manufacturer of record is Heatshield Products, Inc. Government technical data includes 5 verified specifications, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5640-01-706-5689
Primary Part Number204012
Item NameInsulation Sleeving,thermal
FSC / FSG5640 / 56 — No Item Name Available
ManufacturerHeatshield Products, Inc
StatusACTIVE
Length120.0 INCHES NOMINAL IN
Inside Diameter0.50 INCHES NOMINAL IN
Temp Rating1100.0 FAHRENHEIT NOMINAL DEGF
Flammability RatingINCOMBUSTIBLE
FlexibilityFLEXIBLE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
1660-00-168-556120401-2 INTERCHANGEABLE
Parts Kit,valve
Hamilton Sundstrand Corporation Dba Collins Aerospace
6515-00-451-260500-2040-012-00 INTERCHANGEABLE
Stockings,anti-Embolism
Zimmer, Inc. Dba Z Hotel
4320-00-461-3142 INTERCHANGEABLE
Housing,front
5961-00-930-5326 INTERCHANGEABLE
Transistor
6685-01-111-646620401-2 INTERCHANGEABLE
Controller,temperat
General Dynamics Ots (aerospace), Inc. Dba General Dynamics Ordinance and Tactical Systems Div Seattle Operations
3510-01-140-86992-4012 INTERCHANGEABLE
Repair Kit,mounting Stem
Maytag Corporation Dba Maytag Appliancessales
6515-01-210-9529204.012 INTERCHANGEABLE
Screw,bone
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
3120-01-273-1571204012 INTERCHANGEABLE
Bushing,sleeve
Dutton-Lainson Company
5935-01-487-2813204012-1 INTERCHANGEABLE
Connector Assembly,electrical
Frontier Electronic Systems Corp
4320-01-562-1708204-012 INTERCHANGEABLE
Repair Kit,pumping Assembly
Globe Trailer Manufacturing, Inc.
Cross-Reference Index
Part NumberManufacturer
204012 PRIMARY Heatshield Products, Inc (USA)
Related Parts
1660-00-168-5561INTERCHANGEABLE
PARTS KIT,VALVE
20401-2
6515-00-451-2605INTERCHANGEABLE
STOCKINGS,ANTI-EMBOLISM
00-2040-012-00
4320-00-461-3142INTERCHANGEABLE
HOUSING,FRONT
5961-00-930-5326INTERCHANGEABLE
TRANSISTOR
6685-01-111-6466INTERCHANGEABLE
CONTROLLER,TEMPERAT
20401-2
3510-01-140-8699INTERCHANGEABLE
REPAIR KIT,MOUNTING STEM
2-4012
6515-01-210-9529INTERCHANGEABLE
SCREW,BONE
204.012
3120-01-273-1571INTERCHANGEABLE
BUSHING,SLEEVE
204012
5935-01-487-2813INTERCHANGEABLE
CONNECTOR ASSEMBLY,ELECTRICAL
204012-1
4320-01-562-1708INTERCHANGEABLE
REPAIR KIT,PUMPING ASSEMBLY
204-012

Frequently Asked Questions

What is NSN 5640-01-706-5689?

NSN 5640-01-706-5689 is a Insulation Sleeving,thermal, manufactured by Heatshield Products, Inc, classified under FSC 5640 (No Item Name Available). Status: active.

What are the part numbers for NSN 5640-01-706-5689?

NSN 5640-01-706-5689 has 1 cross-referenced part number: 204012 (Heatshield Products, Inc).

What NSN replaces 5640-01-706-5689?

There are 10 known substitutes for 5640-01-706-5689: 1660-00-168-5561, 6515-00-451-2605, 4320-00-461-3142 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 204012?

Key specifications for 204012: Length: 120.0 INCHES NOMINAL IN; Inside Diameter: 0.50 INCHES NOMINAL IN; Part Name Assigned by Controlling Agency: HEAT SHIELD SLEEVING; Temp Rating: 1100.0 FAHRENHEIT NOMINAL DEGF. 6 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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