The Catch,clamping, cataloged under National Stock Number 5340-01-055-1923, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Seal Dynamics Limited. Government technical data includes 19 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-055-1923 |
| Primary Part Number | H2490-1-110-280 |
| Item Name | Catch,clamping |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Seal Dynamics Limited |
| Status | ACTIVE |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BRACKET |
| Surface Treatment Document and Classification | MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE BOLT |
| Surface Treatment Document and Classification | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE RIVET |
| Surface Treatment Document and Classification | QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES SPRING |
| Criticality Code Justification | FEAT |
| Material Document and Classification | QQ-W-470 FED SPEC SINGLE MATERIAL RESPONSE SPRING |
| Material Document and Classification | MIL-S-5059 MIL SPEC SINGLE MATERIAL RESPONSE BRACKET |
| Material Document and Classification | MIL-S-7720 MIL SPEC SINGLE MATERIAL RESPONSE RIVET |
| Material Document and Classification | QQ-A-200/3,T3511 FED SPEC SINGLE MATERIAL RESPONSE BOLT |
| Surface Treatment | ANODIZE BOLT |
| Surface Treatment | CADMIUM AND CHROMATE SPRING |
| Surface Treatment | PASSIVATE RIVET |
| Surface Treatment | PASSIVATE BRACKET |
| Material | STEEL UNS K08500 SPRING |
| Material | ALUMINUM ALLOY 2024 BOLT |
| Material | STEEL COMP 302 BRACKET |
| Material | STEEL COMP 302 RIVET |
| Hole Quantity | 6 |
| Hole Diameter | 0.1285 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | Y |
| Part Number | Manufacturer |
|---|---|
| H2490-1-110-280 | Seal Dynamics Limited (GBR) |
| Reference | Meaning |
|---|---|
| H2490-1-110-280 | 3/2 Design control — primary reference U.S. Government activity |
| H2490-1-110-280 | 5/9 Secondary reference Tecnotec Sarl |
NSN 5340-01-055-1923 is a Catch,clamping, manufactured by Seal Dynamics Limited, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-055-1923 has 1 manufacturer part number on file: H2490-1-110-280 (Seal Dynamics Limited).
Key specifications for H2490-1-110-280: Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE BRACKET; Surface Treatment Document and Classification: MIL-A-8625,TYPE 1 MIL SPEC SINGLE TREATMENT RESPONSE BOLT; Surface Treatment Document and Classification: QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE RIVET; Surface Treatment Document and Classification: QQ-P-416,TYPE 2,CLASS 2 FED SPEC ALL TREATMENT RESPONSES SPRING. 19 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.