The Retainer,helical Compression Spr, cataloged under National Stock Number 5340-01-649-3658, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Cat Pumps Corp. Government technical data includes 1 specification, 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.
| Parameter | Value |
|---|---|
| NSN | 5340-01-649-3658 |
| Primary Part Number | 44728 |
| Item Name | Retainer,helical Compression Spr |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Cat Pumps Corp |
| Status | ACTIVE |
| Material | PLASTIC |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| 44728 PRIMARY | Cat Pumps Corp (USA) |
NSN 5340-01-649-3658 is a Retainer,helical Compression Spr, manufactured by Cat Pumps Corp, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-649-3658 has 1 manufacturer part number on file: 44728 (Cat Pumps Corp).
Key specifications for 44728: Part Name Assigned by Controlling Agency: RETAINER, SPRING; Material: PLASTIC. 1 specification is 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.