The Angle,structural, cataloged under National Stock Number 9540-00-417-6078, is classified within Federal Supply Class 9540 (Structural Shapes, Nonferrous Base Metal) of the Metal Bars, Sheets, and Shapes group. The manufacturer of record is Aluminum Co of America. Government technical data includes 14 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 7 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government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 | 9540-00-417-6078 |
| Primary Part Number | 81877 |
| Item Name | Angle,structural |
| FSC / FSG | 9540 / 95 — Structural Shapes, Nonferrous Base Metal |
| Manufacturer | Aluminum Co of America |
| Status | ACTIVE |
| Length | 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT |
| Base Flange Thickness | 0.070 INCHES NOMINAL IN |
| Heat Treatment | T-6511 SOLUTION HEAT TREATED |
| Material Document and Classification | AMS-Q-A-200/13 FED SPEC SINGLE MATERIAL RESPONSE |
| Left Side Flange Thickness | 0.120 INCHES NOMINAL IN |
| Basic Shape Style | ANGLE |
| Weight Per Unit Measure | 0.540 POUNDS PER LINEAR FOOT LBS |
| Fillet Radius Where Left Flange Joins Base Flange | 0.125 INCHES NOMINAL IN |
| Nondefinitive Spec/std Data | 7178 ALLOY AND T6511 TEMPER |
| Left Inside Angle | 90.0 DEGREES NOMINAL |
| Material | ALUMINUM ALLOY 7178 |
| Fabrication Method | EXTRUDED |
| First Tip Style | SQUARE END |
| Second Tip Relationship to First Tip | IDENTICAL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 81877 | Aluminum Co of America (USA) |
| 60-6347 | Transtar Metals Corp (USA) |
| 38419 | Alcoa/reynolds Metals Company (USA) |
| Reference | Meaning |
|---|---|
| AMS-QQ-A-200/13 | 5/9 Secondary reference U.S. Government activity |
| 1M2446 | 5/9 Secondary reference The Boeing Company Div Defense |
| AMS-QQ-A-200/13 | 3/1 Design control — primary reference Sae International Dba Sae International |
| QQ-A-200/13 | 5/9 Secondary reference U.S. Government activity |
| 81877 | 5/9 Secondary reference Aluminum Co of America Vernon Works Div |
| ASTM B221 | 5/9 Secondary reference U.S. Government activity |
| PA20556 | 5/9 Secondary reference Transtar Metals Corp |
NSN 9540-00-417-6078 is a Angle,structural, manufactured by Aluminum Co of America, classified under FSC 9540, Structural Shapes, Nonferrous Base Metal. Status: active.
NSN 9540-00-417-6078 has 3 manufacturer part numbers on file: 81877 (Aluminum Co of America), 60-6347 (Transtar Metals Corp), 38419 (Alcoa/reynolds Metals Company).
3 possible matches (shared part number, not a government interchangeability claim): 2590-00-478-2772, 6680-01-179-0230, 5133-01-199-0395. Verify interchangeability with system specifications before substitution.
Key specifications for 81877: Overall Height: 1.460 INCHES NOMINAL IN; Length: 10.000 FEET MINIMUM AND 12.000 FEET MAXIMUM FT; Base Flange Thickness: 0.070 INCHES NOMINAL IN; Heat Treatment: T-6511 SOLUTION HEAT TREATED. 14 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.