The Bracket,angle, cataloged under National Stock Number 5340-00-075-4899, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney. Government technical data includes 27 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-00-075-4899 |
| Primary Part Number | 487990 |
| Item Name | Bracket,angle |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney |
| Status | ACTIVE |
| Second Leg Distance From Edge to Hole Center Along Length | 0.374 INCHES NOMINAL IN |
| First Leg Distance From Edge to Hole Center Along Length | 0.375 INCHES NOMINAL IN |
| First Leg Hole Diameter | 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN |
| First Leg Angle | 159.0 DEGREES NOMINAL |
| Second Leg Relationship to First Leg | NOT IDENTICAL |
| Second Leg Hole Diameter | 0.339 INCHES MINIMUM AND 0.349 INCHES MAXIMUM IN |
| Surface Treatment Document and Classification | AMS 2400 ASSN STD SINGLE TREATMENT RESPONSE |
| Second Leg Width | 1.300 INCHES NOMINAL IN |
| Second Leg Length | 1.631 INCHES NOMINAL IN |
| First Leg Hole Arrangement Style | ONE HOLE |
| Second Leg Distance From Edge to Hole Center Along Width | 0.884 INCHES NOMINAL IN |
| Style Designator | ANGLE |
| First Leg Style | END RADIUS |
| Material Document and Classification | AMS 6350 ASSN STD 1ST MATERIAL RESPONSE OR AMS 6355 ASSN STD 2ND MATERIAL RESPONSE |
| Second Leg Distance Between First and Second Hole Centers Along Width | 0.857 INCHES NOMINAL IN |
| Second Leg Thickness | 0.160 INCHES NOMINAL IN |
| First Leg Distance From Edge to Hole Center Along Width | 0.375 INCHES NOMINAL IN |
| First Leg Thickness | 0.160 INCHES NOMINAL IN |
| First Leg Length | 0.900 INCHES NOMINAL IN |
| First Leg Width | 0.750 INCHES NOMINAL IN |
| Second Leg Style | CORNER RADIUS |
| Second Leg End Radius | 0.380 INCHES NOMINAL IN |
| Surface Treatment | CADMIUM |
| Second Leg Corner Radius | 0.281 INCHES NOMINAL IN |
| First Leg End Radius | 0.375 INCHES NOMINAL IN |
| Material | STEEL COMP 4130 OR STEEL COMP 8630 |
| Second Leg Hole Arrangement Style | THREE HOLES |
| 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 |
|---|---|
| 487990 PRIMARY | Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA) |
| 487990 | Paradigm Manchester Inc. Dba Pursuit Aerospace (USA) |
| Reference | Meaning |
|---|---|
| 3P50004-131 | 5/2 Secondary reference U.S. Government activity |
| 487990 | 5/9 Secondary reference Gould E a and Co |
| 487990 | 5/9 Secondary reference Dynamic Gunver Technologies Llc |
NSN 5340-00-075-4899 is a Bracket,angle, manufactured by Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-00-075-4899 has 2 manufacturer part numbers on file: 487990 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 487990 (Paradigm Manchester Inc. Dba Pursuit Aerospace).
1 possible match (shared part number, not a government interchangeability claim): 5120-01-663-8653. Verify interchangeability with system specifications before substitution.
Key specifications for 487990: Second Leg Distance From Edge to Hole Center Along Length: 0.374 INCHES NOMINAL IN; First Leg Distance From Edge to Hole Center Along Length: 0.375 INCHES NOMINAL IN; First Leg Hole Diameter: 0.276 INCHES MINIMUM AND 0.286 INCHES MAXIMUM IN; First Leg Angle: 159.0 DEGREES NOMINAL. 27 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.