The Insulation Sleeving,thermal, cataloged under National Stock Number 5640-01-307-4721, is classified within Federal Supply Class 5640 (No Item Name Available) of the Construction and Building Materials group. The primary manufacturer of record is Ethyl Corp Commercial Development Div. Government technical data includes 9 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5640-01-307-4721 |
| Primary Part Number | 6153 |
| Item Name | Insulation Sleeving,thermal |
| FSC / FSG | 5640 / 56 — No Item Name Available |
| Manufacturer | Ethyl Corp Commercial Development Div |
| Status | ACTIVE |
| Inside Diameter | 1.625 INCHES NOMINAL IN |
| Length | 72.000 INCHES NOMINAL IN |
| Flexibility | FLEXIBLE |
| Fabrication Method | EXPANDED |
| Material | POLYPHOSPHAZENE FOAM LOCATION NOT OTHERWISE SPECIFIED |
| Nondefinitive Spec/std Data | T FORM |
| Design Form | FULL ROUND |
| Layer Quantity | 1 |
| Insulation Thickness | 0.750 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 6153 | Ethyl Corp Commercial Development Div (USA) |
| MIL-I-24703 | Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M |
| MIL-I-24703 FMT | General Services Administration Federal Supply Service (USA) |
NSN 5640-01-307-4721 is a Insulation Sleeving,thermal, manufactured by Ethyl Corp Commercial Development Div, classified under FSC 5640 (No Item Name Available). Status: active.
NSN 5640-01-307-4721 has 3 cross-referenced part numbers: 6153 (Ethyl Corp Commercial Development Div), MIL-I-24703 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-I-24703 FMT (General Services Administration Federal Supply Service).
There are 12 known substitutes for 5640-01-307-4721: 5940-00-058-4208, 5950-00-080-1377, 2825-00-146-9072 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 6153: Inside Diameter: 1.625 INCHES NOMINAL IN; Length: 72.000 INCHES NOMINAL IN; Flexibility: FLEXIBLE; Special Features: CONTAINS NO HALOGEN; CLOSED CELL;OIL RESISTANT; LOW WATER VAPOR PERMEABILITY; EXCELLENT THERMAL INSULATION; NO SEPARATE MOISTURE BARRIER NEEDED. 10 total characteristics are documented in the Federal Logistics Information System.