The Mount,resilient,weapon System, cataloged under National Stock Number 5342-00-455-9754, is classified within Federal Supply Class 5342 (Hardware, Weapon System) of the Hardware and Abrasives group. The manufacturer of record is Dow-Elco, Inc.. Government technical data includes 12 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through both NSN and commercial part number lookups. 4 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5342-00-455-9754 |
| Primary Part Number | C749-1 |
| Item Name | Mount,resilient,weapon System |
| FSC / FSG | 5342 / 53 — Hardware, Weapon System |
| Manufacturer | Dow-Elco, Inc. |
| Status | ACTIVE |
| Flange Mounting Hole Diameter | 0.390 INCHES NOMINAL IN |
| Distance Between Mounting Hole Centers | 3.750 INCHES NOMINAL IN |
| Flange Thickness | 0.260 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN |
| Style Designator | ROUND W/FLANGED BUSHING FOUR-HOLE FLANGE |
| Material Document and Classification | AISI C1009 THRU C1030 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Flange Length | 4.800 INCHES MINIMUM AND 4.860 INCHES MAXIMUM IN |
| Shortest Distance Between Mounting Hole Centers | 3.750 INCHES NOMINAL IN |
| Height | 1.970 INCHES MINIMUM AND 2.030 INCHES MAXIMUM IN |
| Thread Size | 1/2-20 ALL THREADED PORTIONS |
| Surface Treatment | CHROMATE OVERALL |
| Flange Width | 4.800 INCHES MINIMUM AND 4.860 INCHES MAXIMUM IN |
| Material | STEEL OVERALL |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| C749-1 | Dow-Elco, Inc. (USA) |
| 2642801 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| Reference | Meaning |
|---|---|
| 29408-1 | 3/2 Design control — primary reference U.S. Government activity |
| J7781-89 | 5/9 Secondary reference Lord Corporation Dba Lord Corp |
| 2642801 | 5/9 Secondary reference Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier |
| BUWEPSDWG2642801 | 5/9 Secondary reference Lord Corporation Dba Lord Corp |
NSN 5342-00-455-9754 is a Mount,resilient,weapon System, manufactured by Dow-Elco, Inc., classified under FSC 5342, Hardware, Weapon System. Status: active.
NSN 5342-00-455-9754 has 2 manufacturer part numbers on file: C749-1 (Dow-Elco, Inc.), 2642801 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier).
Key specifications for C749-1: Flange Mounting Hole Diameter: 0.390 INCHES NOMINAL IN; Distance Between Mounting Hole Centers: 3.750 INCHES NOMINAL IN; Flange Thickness: 0.260 INCHES MINIMUM AND 0.320 INCHES MAXIMUM IN; Style Designator: ROUND W/FLANGED BUSHING FOUR-HOLE FLANGE. 12 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). 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.