PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B1284Insulation Blanket,thermal

Johns Manville Intl · NSN 5640-01-674-2924 · FSC 5640 · No Item Name Available
Verified by PartsTable
NSN 5640-01-674-2924 — this item is cataloged by the U.S. Government under National Stock Number 5640-01-674-2924. Primary manufacturer part number: B1284.
Features
  • Insulation Blanket,thermal — FSC 5640
  • Length: 32.00 INCHES NOMINAL IN
  • Total Recovered Materials Percentage: 30.0
  • Thickness: 3.50 INCHES NOMINAL IN
  • Environmental Attribute Code: COMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - BUILDING INSULATION PRODUCTS
  • Width: 15.00 INCHES NOMINAL IN
  • 2 verified cross-references
  • Primary manufacturer: Johns Manville Intl
Applications
  • Building construction and repair
  • Infrastructure development
  • Road and bridge materials
General Description

The Insulation Blanket,thermal, cataloged under National Stock Number 5640-01-674-2924, is classified within Federal Supply Class 5640 (No Item Name Available) of the Construction and Building Materials group. The primary manufacturer of record is Johns Manville Intl. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5640-01-674-2924
Primary Part NumberB1284
Item NameInsulation Blanket,thermal
FSC / FSG5640 / 56 — No Item Name Available
ManufacturerJohns Manville Intl
StatusACTIVE
Length32.00 INCHES NOMINAL IN
Total Recovered Materials Percentage30.0
Thickness3.50 INCHES NOMINAL IN
Environmental Attribute CodeCOMPREHENSIVE PROCUREMENT GUIDELINE - CONSTRUCTION PRODUCTS - BUILDING INSULATION PRODUCTS
Width15.00 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5940-00-197-977231116 INTERCHANGEABLE
Terminal,lug
Bulova Technologies L.l.c. Dba Environmental Systems & Svcs
5136-00-239-2768401178 INTERCHANGEABLE
Die,thread Cutting
Greenfield Industries Inc
5950-00-251-714931116 INTERCHANGEABLE
Transformer,radio Frequency
Pax Mfg Corp Hammarlund Mfg Co Div
6210-00-299-406331-116 INTERCHANGEABLE
Lens,light
Dialight Corporation
3825-00-562-10084041250 INTERCHANGEABLE
Arm,clutch Rotation
Agco Corp Parts Opn
3030-00-640-4355 INTERCHANGEABLE
Belts,v,matched Set
4810-01-021-974331116 INTERCHANGEABLE
Cage,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5340-01-106-187231116 INTERCHANGEABLE
Buckle
Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution
5360-01-178-1728 INTERCHANGEABLE
Spring,helical,compression
5330-01-236-919731116 INTERCHANGEABLE
Gasket
Mcneil Ohio Corp
Cross-Reference Index
Part NumberManufacturer
31116 Lowes of Huntsville (USA)
B1284 PRIMARY Johns Manville Intl (USA)
Related Parts
5940-00-197-9772INTERCHANGEABLE
TERMINAL,LUG
31116
5136-00-239-2768INTERCHANGEABLE
DIE,THREAD CUTTING
401178
5950-00-251-7149INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
31116
6210-00-299-4063INTERCHANGEABLE
LENS,LIGHT
31-116
3825-00-562-1008INTERCHANGEABLE
ARM,CLUTCH ROTATION
4041250
3030-00-640-4355INTERCHANGEABLE
BELTS,V,MATCHED SET
4810-01-021-9743INTERCHANGEABLE
CAGE,VALVE
31116
5340-01-106-1872INTERCHANGEABLE
BUCKLE
31116
5360-01-178-1728INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5330-01-236-9197INTERCHANGEABLE
GASKET
31116
4820-01-239-9924INTERCHANGEABLE
SEAT,VALVE
31116
6105-01-343-1504INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
31-116

Frequently Asked Questions

What is NSN 5640-01-674-2924?

NSN 5640-01-674-2924 is a Insulation Blanket,thermal, manufactured by Johns Manville Intl, classified under FSC 5640 (No Item Name Available). Status: active.

What are the part numbers for NSN 5640-01-674-2924?

NSN 5640-01-674-2924 has 2 cross-referenced part numbers: 31116 (Lowes of Huntsville), B1284 (Johns Manville Intl).

What NSN replaces 5640-01-674-2924?

There are 12 known substitutes for 5640-01-674-2924: 5940-00-197-9772, 5136-00-239-2768, 5950-00-251-7149 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B1284?

Key specifications for B1284: Length: 32.00 INCHES NOMINAL IN; Special Features: KRAFT FACED; FIBERGLASS; R13; 40 SQ FT; Total Recovered Materials Percentage: 30.0; Thickness: 3.50 INCHES NOMINAL IN. 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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