The Mount,resilient,utility, cataloged under National Stock Number 5340-01-642-9275, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is California Dynamics Corp Dba Caldyn Los Angeles Ca. Government technical data includes 10 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. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 5340-01-642-9275 |
| Primary Part Number | RM-280B |
| Item Name | Mount,resilient,utility |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | California Dynamics Corp Dba Caldyn Los Angeles Ca |
| Status | ACTIVE |
| Flange Mounting Hole Diameter | 0.344 INCHES NOMINAL IN |
| Load Rating | 280.0 POUNDS MAXIMUM LBS |
| Distance Between Mounting Hole Centers | 3.000 INCHES NOMINAL IN |
| Flange Thickness | 0.219 INCHES NOMINAL IN |
| Style Designator | SQUARE W/INTERNALLY THREADED FLANGE TWO-HOLE FLANGE |
| Flange Length | 3.875 INCHES NOMINAL IN |
| Height | 1.250 INCHES NOMINAL IN |
| Thread Size | 0.375 FIRST THREADED PORTION |
| Flange Width | 2.375 INCHES NOMINAL IN |
| Material | RUBBER SYNTHETIC OVERALL |
| 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 |
|---|---|
| RM-280B PRIMARY | California Dynamics Corp Dba Caldyn Los Angeles Ca (USA) |
NSN 5340-01-642-9275 is a Mount,resilient,utility, manufactured by California Dynamics Corp Dba Caldyn Los Angeles Ca, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-642-9275 has 1 manufacturer part number on file: RM-280B (California Dynamics Corp Dba Caldyn Los Angeles Ca).
Key specifications for RM-280B: Flange Mounting Hole Diameter: 0.344 INCHES NOMINAL IN; Load Rating: 280.0 POUNDS MAXIMUM LBS; Distance Between Mounting Hole Centers: 3.000 INCHES NOMINAL IN; Flange Thickness: 0.219 INCHES NOMINAL IN. 10 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.