The Lumber,softwood,timber, cataloged under National Stock Number 5510-00-273-6783, is classified within Federal Supply Class 5510 (Lumber and Related Basic Wood Materials) of the Lumber, Millwork, Plywood, and Veneer group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 7 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5510-00-273-6783 |
| Item Name | Lumber,softwood,timber |
| FSC / FSG | 5510 / 55 — Lumber and Related Basic Wood Materials |
| Status | ACTIVE |
| Width-Location and Measuring Method | 10.000 INCHES NOMINAL OVERALL SPECIFIED IN |
| Measuring Method and Length | 10.000 FEET MINIMUM RANDOM FT |
| Species-Grade and Grading Association | ANY ACCEPTABLE SELECT STRUCTURAL NORTHEASTERN LUMBER MANUFACTURERS ASSOCIATION OR ANY ACCEPTABLE SELECT STRUCTURAL NORTHERN HARDWOOD AND PINE MANUFACTURERS ASSOCIATION OR ANY ACCEPTABLE SELECT STRUCTURAL WEST COAST LUMBER INSPECTION BUREAU OR ANY ACCEPTABLE SELECT STRUCTURAL WESTERN WOOD PRODUCTS ASSOCIATION OR PINE, SOUTHERN NO. 1 DENSE SR SOUTHERN PINE INSPECTION BUREAU OR REDWOOD SELECT STRUCTURAL REDWOOD INSPECTION SERVICE |
| Supplementary Features | UNIT OF ISSUE-BF |
| Specification/standard Data | 81348-MM-L-751 GOVERNMENT SPECIFICATION |
| Nondefinitive Spec/std Data | III TABLE |
| Typical Wood Products Use | HIGH QUALITY BEAMS, STRINGERS, POSTS, TIMBERS, COLUMNS AND STRUTS |
| Thickness-Location and Measuring Method | 10.000 INCHES NOMINAL OVERALL SPECIFIED IN |
| Surface Condition Degree | ROUGH-UNSANDED FULL LENGTH |
| Random Length | 10 FT AND LONGER WITH A MAX OF 10PCT TO BE 10 FT AND A MIN OF 50PCT TO BE 14 FT AND LONGER FT |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Reference | Meaning |
|---|---|
| MML751 | 5/9 Secondary reference U.S. Government activity |
| PS 20-05 | 3/1 Design control — primary reference American Lumber Standard Committee Inc |
| MML751C | 4/1 Identification reference U.S. Government activity |
NSN 5510-00-273-6783 is a Lumber,softwood,timber, classified under FSC 5510, Lumber and Related Basic Wood Materials. Status: active.
7 possible matches (shared part number, not a government interchangeability claim): 5510-00-273-6784, 5510-00-273-6790, 5510-00-273-6791. Verify interchangeability with system specifications before substitution.
Key specifications for 5510-00-273-6783: Width-Location and Measuring Method: 10.000 INCHES NOMINAL OVERALL SPECIFIED IN; Measuring Method and Length: 10.000 FEET MINIMUM RANDOM FT; Species-Grade and Grading Association: ANY ACCEPTABLE SELECT STRUCTURAL NORTHEASTERN LUMBER MANUFACTURERS ASSOCIATION OR ANY ACCEPTABLE SELECT STRUCTURAL NORTHERN HARDWOOD AND PINE MANUFACTURERS ASSOCIATION OR ANY ACCEPTABLE SELECT STRUCTURAL WEST COAST LUMBER INSPECTION BUREAU OR ANY ACCEPTABLE SELECT STRUCTURAL WESTERN WOOD PRODUCTS ASSOCIATION OR PINE, SOUTHERN NO. 1 DENSE SR SOUTHERN PINE INSPECTION BUREAU OR REDWOOD SELECT STRUCTURAL REDWOOD INSPECTION SERVICE; Supplementary Features: UNIT OF ISSUE-BF. 10 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.