The Bracket,angle, cataloged under National Stock Number 5340-01-031-1056, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation. Government technical data includes 23 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-031-1056 |
| Primary Part Number | S477A-1 |
| Item Name | Bracket,angle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Second Leg Distance From Edge to Hole Center Along Length | 0.320 INCHES NOMINAL IN |
| First Leg Distance From Edge to Hole Center Along Length | 0.180 INCHES NOMINAL IN |
| First Leg Hole Diameter | 0.193 INCHES NOMINAL IN |
| First Leg Angle | 30.0 DEGREES NOMINAL |
| Second Leg Relationship to First Leg | IDENTICAL |
| Second Leg Hole Diameter | 0.193 INCHES NOMINAL IN |
| Second Leg Width | 0.640 INCHES NOMINAL IN |
| Second Leg Length | 0.720 INCHES NOMINAL IN |
| First Leg Hole Arrangement Style | ONE HOLE |
| Second Leg Distance From Edge to Hole Center Along Width | 0.320 INCHES NOMINAL IN |
| Style Designator | ANGLE |
| First Leg Style | END RADIUS |
| Material Document and Classification | QQ-A-250/5,ALCLAD T3 FED SPEC SINGLE MATERIAL RESPONSE |
| Second Leg Thickness | 0.064 INCHES NOMINAL IN |
| First Leg Distance From Edge to Hole Center Along Width | 0.180 INCHES NOMINAL IN |
| First Leg Thickness | 0.064 INCHES NOMINAL IN |
| First Leg Length | 0.590 INCHES NOMINAL IN |
| First Leg Width | 0.360 INCHES NOMINAL IN |
| Second Leg Style | END RADIUS |
| Second Leg End Radius | 0.320 INCHES NOMINAL IN |
| First Leg End Radius | 0.180 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 |
| Second Leg Hole Arrangement Style | ONE HOLE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Unit of Issue | EA |
| Part Number | Manufacturer |
|---|---|
| S477A-1 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| S477-1A | 5/9 Secondary reference Northrop Grumman Systems Corporation |
NSN 5340-01-031-1056 is a Bracket,angle, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-031-1056 has 1 manufacturer part number on file: S477A-1 (Northrop Grumman Systems Corporation).
Key specifications for S477A-1: Second Leg Distance From Edge to Hole Center Along Length: 0.320 INCHES NOMINAL IN; First Leg Distance From Edge to Hole Center Along Length: 0.180 INCHES NOMINAL IN; First Leg Hole Diameter: 0.193 INCHES NOMINAL IN; First Leg Angle: 30.0 DEGREES NOMINAL. 23 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). 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.