The Insulation Blanket,thermal, cataloged under National Stock Number 5640-00-398-3986, 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 18 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5640-00-398-3986 |
| Primary Part Number | HH-I-558 FMBTY1CL6 |
| Item Name | Insulation Blanket,thermal |
| FSC / FSG | 5640 / 56 — No Item Name Available |
| Manufacturer | General Services Administration Federal Supply Service |
| Status | ACTIVE |
| Temp Rating | 350.0 FAHRENHEIT DEGF |
| One Side Decoration Provision | NOT PROVIDED |
| Reflective Surface Location | BOTH SIDES |
| Decorative Side Color | ANY ACCEPTABLE |
| Layer Environmental Protection | FIRE RESISTANT LOCATION NOT OTHERWISE SPECIFIED |
| Affixed Sheet | INCLUDED |
| Nondefinitive Spec/std Data | B FORM AND 1 TYPE AND 6 CLASS |
| Quilted Feature | NOT INCLUDED |
| Maximum Thermal Conductivity | 0.58 AT200 DEGREES F |
| Layer Quantity | 1 LOCATION NOT OTHERWISE SPECIFIED |
| Material | MINERAL FIBER LAYER |
| Layer Thickness | 1.000 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN |
| Material | ALUMINUM BOTH SIDES |
| Added Binder | INCLUDED |
| Environmental Protection | WATERPROOF |
| Width | 48.000 INCHES NOMINAL IN |
| Length | 1200.000 INCHES NOMINAL IN |
| Thickness | 1.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| HH-I-558 FMBTY1CL6 | General Services Administration Federal Supply Service (USA) |
| HH-I-558 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
NSN 5640-00-398-3986 is a Insulation Blanket,thermal, manufactured by General Services Administration Federal Supply Service, classified under FSC 5640 (No Item Name Available). Status: active.
NSN 5640-00-398-3986 has 2 cross-referenced part numbers: HH-I-558 FMBTY1CL6 (General Services Administration Federal Supply Service), HH-I-558 (Federal Specifications Promulgated by General Services Administration Washington DC).
There are 9 known substitutes for 5640-00-398-3986: 5640-00-079-3360, 5640-00-142-5956, 5640-00-281-6918 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for HH-I-558 FMBTY1CL6: Temp Rating: 350.0 FAHRENHEIT DEGF; One Side Decoration Provision: NOT PROVIDED; Reflective Surface Location: BOTH SIDES; Decorative Side Color: ANY ACCEPTABLE. 18 total characteristics are documented in the Federal Logistics Information System.