The Beam,structural, cataloged under National Stock Number 9520-00-277-5980, is classified within Federal Supply Class 9520 (Structural Shapes) of the Metal Bars, Sheets, and Shapes group. Government technical data includes 22 specifications, cited from the U.S. Government catalog. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 9520-00-277-5980 |
| Item Name | Beam,structural |
| FSC / FSG | 9520 / 95 — Structural Shapes |
| Status | ACTIVE |
| Right Top Inner Face to Outer Face Angle | 90.0 DEGREES NOMINAL |
| Right Side Top Flange Thickness | 0.312 INCHES NOMINAL IN |
| Length | 20.000 FEET MINIMUM AND 30.000 FEET MAXIMUM FT |
| Left Side Top Flange Distance to Center of Both Flanges | 2.000 INCHES NOMINAL IN |
| Right Side Top Flange Tip Thickness | 0.250 INCHES NOMINAL IN |
| Heat Treatment | AS FABRICATED |
| Fillet Radius Where Top Right Flange Joins Web Flange/leg | 0.250 INCHES NOMINAL IN |
| Material Document and Classification | MIL-S-22698, GRADE A MIL SPEC SINGLE MATERIAL RESPONSE |
| Fillet Radius Where Top Left Flange Joins Web Flange/leg | 0.250 INCHES NOMINAL IN |
| Basic Shape Style | T SHAPE |
| Weight Per Unit Measure | 8.250 POUNDS PER LINEAR FOOT LBS |
| Nondefinitive Spec/std Data | A GRADE |
| Left Top Inner Face to Outer Face Angle | 90.0 DEGREES NOMINAL |
| Top Flange Width | 4.000 INCHES NOMINAL IN |
| Left Side Top Flange Tip Thickness | 0.250 INCHES NOMINAL IN |
| Third Tip Relationship to Preceding Tips | IDENTICAL W/FIRST TIP |
| Material | STEEL UNS K02102 |
| Leg Thickness | 0.230 INCHES NOMINAL IN |
| First Tip Style | SQUARE END |
| Left Side Top Flange Thickness | 0.312 INCHES NOMINAL IN |
| Second Tip Relationship to First Tip | IDENTICAL |
| Right Side Top Flange Distance to Center of Both Flanges | 2.000 INCHES NOMINAL IN |
| 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 |
|---|---|
| MIL-S-22698 | 4/1 Identification reference U.S. Government activity |
| ABS RULES | 5/9 Secondary reference American Bureau of Shipping |
NSN 9520-00-277-5980 is a Beam,structural, classified under FSC 9520, Structural Shapes. Status: active.
Key specifications for 9520-00-277-5980: Right Top Inner Face to Outer Face Angle: 90.0 DEGREES NOMINAL; Overall Height: 6.000 INCHES NOMINAL IN; Right Side Top Flange Thickness: 0.312 INCHES NOMINAL IN; Length: 20.000 FEET MINIMUM AND 30.000 FEET MAXIMUM FT. 22 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.