The Insulation Board,thermal, cataloged under National Stock Number 5640-00-281-6918, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 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 | 5640-00-281-6918 |
| Primary Part Number | ASTM C612 TY1A |
| Item Name | Insulation Board,thermal |
| FSC / FSG | 5640 / 56 — No Item Name Available |
| Manufacturer | General Services Administration Federal Supply Service |
| Status | ACTIVE |
| Maximum Thermal Conductivity | 0.25 AT 50 DEG. F MEAN TEMP. |
| Coverage Width | 24.000 INCHES NOMINAL IN |
| Water Repellent Coated Surface | NOT PROVIDED |
| Nondefinitive Spec/std Data | 1A TYPE A |
| Material | MINERAL FIBER LOCATION NOT OTHERWISE SPECIFIED |
| Overall Thickness | 3.000 INCHES NOMINAL IN |
| Temp Rating | 450.0 FAHRENHEIT DEGF |
| One Side Decoration Provision | NOT PROVIDED |
| Coverage Length | 48.000 INCHES NOMINAL IN |
| Flameproof Feature | NOT INCLUDED |
| Long Edge Joint Style | BUTT JOINT |
| Short Edge Joint Style | BUTT JOINT |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| ASTM C612 TY1A | General Services Administration Federal Supply Service (USA) |
| HH-I-558 FMACL1 | General Services Administration Federal Supply Service (USA) |
| ASTM C612 | American Society for Testing and Materials Dba Astm International (USA) |
| HH-I-558 | Federal Specifications Promulgated by General Services Administration Washington DC (USA) |
| ASTM C612 CL1 | General Services Administration Federal Supply Service (USA) |
NSN 5640-00-281-6918 is a Insulation Board,thermal, manufactured by General Services Administration Federal Supply Service, classified under FSC 5640 (No Item Name Available). Status: active.
NSN 5640-00-281-6918 has 5 cross-referenced part numbers: ASTM C612 TY1A (General Services Administration Federal Supply Service), HH-I-558 FMACL1 (General Services Administration Federal Supply Service), ASTM C612 (American Society for Testing and Materials Dba Astm International), HH-I-558 (Federal Specifications Promulgated by General Services Administration Washington DC), ASTM C612 CL1 (General Services Administration Federal Supply Service).
There are 12 known substitutes for 5640-00-281-6918: 5640-00-079-3360, 5640-00-142-5956, 5640-00-242-6032 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for ASTM C612 TY1A: Maximum Thermal Conductivity: 0.25 AT 50 DEG. F MEAN TEMP.; Coverage Width: 24.000 INCHES NOMINAL IN; Overall Width: 24.000 INCHES NOMINAL IN; Water Repellent Coated Surface: NOT PROVIDED. 15 total characteristics are documented in the Federal Logistics Information System.