The Bracket,double Angle, cataloged under National Stock Number 5340-01-312-4977, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Trico Manufacturing Inc.. Government technical data includes 29 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-312-4977 |
| Primary Part Number | 9M671-C2R |
| Item Name | Bracket,double Angle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Trico Manufacturing Inc. |
| Status | ACTIVE |
| First Leg Distance From Edge to Hole Center Along Length | 0.250 INCHES NOMINAL IN |
| First Leg Hole Diameter | 0.220 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN |
| First Leg Angle | 90.0 DEGREES NOMINAL |
| Center Section Thickness | 0.063 INCHES NOMINAL IN |
| First Leg Distance Between Hole Centers Along Width | 0.990 INCHES MINIMUM AND 1.010 INCHES MAXIMUM IN |
| Second Leg Relationship to First Leg | NOT IDENTICAL |
| Second Leg Angle | 90.0 DEGREES NOMINAL |
| Surface Treatment Document and Classification | MIL-P-23377 MIL SPEC SINGLE TREATMENT RESPONSE |
| First Leg Corner Radius | 0.220 INCHES NOMINAL IN |
| Second Leg Width | 1.500 INCHES NOMINAL IN |
| Second Leg Length | 1.000 INCHES NOMINAL IN |
| First Leg Hole Arrangement Style | TWO HOLES |
| Center Section Width | 1.500 INCHES NOMINAL IN |
| Style Designator | ADJACENT ANGLES |
| First Leg Style | CORNER RADIUS |
| Material Document and Classification | QQ-A-250/5,T3 FED SPEC SINGLE MATERIAL RESPONSE |
| Features Provided | NUT |
| Second Leg Thickness | 0.063 INCHES NOMINAL IN |
| First Leg Distance From Edge to Hole Center Along Width | 0.240 INCHES MINIMUM AND 0.260 INCHES MAXIMUM IN |
| First Leg Thickness | 0.063 INCHES NOMINAL IN |
| First Leg Length | 0.730 INCHES MINIMUM AND 0.770 INCHES MAXIMUM IN |
| First Leg Width | 1.500 INCHES NOMINAL IN |
| Second Leg Style | CORNER RADIUS |
| Surface Treatment | PLASTIC EPOXY AND PLASTIC POLYAMIDE |
| Second Leg Corner Radius | 0.220 INCHES NOMINAL IN |
| Material | ALUMINUM ALLOY 2024 AND ALUMINUM ALLOY 1230 |
| Second Leg Hole Arrangement Style | NO HOLE |
| Center Section Height | 0.570 INCHES MINIMUM AND 0.690 INCHES MAXIMUM IN |
| Mounting Hole Type | PLAIN |
| 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 |
|---|---|
| 9M671-C2R PRIMARY | Trico Manufacturing Inc. (USA) |
| 9M671-C2R | Fastener Specialty, Inc. (USA) |
| Reference | Meaning |
|---|---|
| 10113136 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| 9M671-C2R | 5/9 Secondary reference The Boeing Company Div Defense |
NSN 5340-01-312-4977 is a Bracket,double Angle, manufactured by Trico Manufacturing Inc., classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-312-4977 has 2 manufacturer part numbers on file: 9M671-C2R (Trico Manufacturing Inc.), 9M671-C2R (Fastener Specialty, Inc.).
Key specifications for 9M671-C2R: First Leg Distance From Edge to Hole Center Along Length: 0.250 INCHES NOMINAL IN; First Leg Hole Diameter: 0.220 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN; First Leg Angle: 90.0 DEGREES NOMINAL; Center Section Thickness: 0.063 INCHES NOMINAL IN. 29 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.