The Hook,support, cataloged under National Stock Number 5340-01-499-4679, 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 9 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 5340-01-499-4679 |
| Primary Part Number | 1228SME49344-19 |
| Item Name | Hook,support |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Northrop Grumman Systems Corporation |
| Status | ACTIVE |
| Mounting Hole Quantity | 4 |
| Surface Treatment Document and Classification | MIL-C-5541, CLASS 3 MIL SPEC 1ST TREATMENT RESPONSE |
| Material Document and Classification | QQ-A-250/11, T651 FED SPEC SINGLE MATERIAL RESPONSE |
| Mounting Hole Diameter | 0.156 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Material Thickness | 0.500 INCHES NOMINAL IN |
| Material Width | 2.000 INCHES NOMINAL IN |
| Overall Length From Mounting Surface | 10.575 INCHES NOMINAL IN |
| Surface Treatment | CHROMATE |
| Material | ALUMINUM ALLOY 6061 |
| 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 |
|---|---|
| 1228SME49344-19 PRIMARY | Northrop Grumman Systems Corporation (USA) |
| Reference | Meaning |
|---|---|
| 1128SME49344-19 | 5/9 Secondary reference Navy, United States Department of the Dba Naval Surface Warfare Center Div Naval Surface Warfare Center Crane Division |
NSN 5340-01-499-4679 is a Hook,support, manufactured by Northrop Grumman Systems Corporation, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-499-4679 has 1 manufacturer part number on file: 1228SME49344-19 (Northrop Grumman Systems Corporation).
Key specifications for 1228SME49344-19: Mounting Hole Quantity: 4; Overall Height: 13.450 INCHES NOMINAL IN; Surface Treatment Document and Classification: MIL-C-5541, CLASS 3 MIL SPEC 1ST TREATMENT RESPONSE; Material Document and Classification: QQ-A-250/11, T651 FED SPEC SINGLE MATERIAL RESPONSE. 9 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.