The Concrete Masonry Unit,hollow, cataloged under National Stock Number 5620-00-297-5378, is classified within Federal Supply Class 5620 (No Item Name Available) of the Construction and Building Materials group. The primary manufacturer of record is Federal Specifications Promulgated by General Services Administration Washington DC. Government technical data includes 10 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5620-00-297-5378 |
| Primary Part Number | SS-C-621 |
| Item Name | Concrete Masonry Unit,hollow |
| FSC / FSG | 5620 / 56 — No Item Name Available |
| Manufacturer | Federal Specifications Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| Shell Thickness at Side | 1.312 INCHES NOMINAL IN |
| Style Designator | CORNER HEADER (THREE CELL) |
| Length | 16.000 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 1 TYPE AND N GRADE |
| Cell Length | 4.000 INCHES NOMINAL IN |
| Width | 8.000 INCHES NOMINAL IN |
| Cell Width | 5.125 INCHES NOMINAL IN |
| Height | 8.000 INCHES NOMINAL IN |
| Shell Thickness at Exposed Corner End | 1.312 INCHES NOMINAL IN |
| Web Thickness | 1.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
NSN 5620-00-297-5378 is a Concrete Masonry Unit,hollow, manufactured by Federal Specifications Promulgated by General Services Administration Washington DC, classified under FSC 5620 (No Item Name Available). Status: active.
NSN 5620-00-297-5378 has 2 cross-referenced part numbers: SS-C-621 (Federal Specifications Promulgated by General Services Administration Washington DC), ASTM C90 (American Society for Testing and Materials Dba Astm International).
There are 3 known substitutes for 5620-00-297-5378: 5620-01-126-5471, 5620-01-126-5472, 5620-01-679-0338. Verify interchangeability with system specifications before substitution.
Key specifications for SS-C-621: Shell Thickness at Side: 1.312 INCHES NOMINAL IN; Style Designator: CORNER HEADER (THREE CELL); Length: 16.000 INCHES NOMINAL IN; Nondefinitive Spec/std Data: 1 TYPE AND N GRADE. 10 total characteristics are documented in the Federal Logistics Information System.