The Dashpot, cataloged under National Stock Number 5340-01-657-4682, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. The manufacturer of record is Darchem Engineering Ltd. Government technical data includes 1 specification, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5340-01-657-4682 |
| Primary Part Number | 25506-TD1-1 |
| Item Name | Dashpot |
| FSC / FSG | 5340 / 53 — Hardware, Commercial |
| Manufacturer | Darchem Engineering Ltd |
| Status | ACTIVE |
| Unpackaged Unit Weight | 1.6 KILOGRAMS KG |
| 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 |
|---|---|
| 25506-TD1-1 | Darchem Engineering Ltd (GBR) |
| 40076040 | Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt) (GBR) |
| Reference | Meaning |
|---|---|
| HB-28-200-CC-P | 3/9 Design control — primary reference Ace Controls Inc. |
NSN 5340-01-657-4682 is a Dashpot, manufactured by Darchem Engineering Ltd, classified under FSC 5340, Hardware, Commercial. Status: active.
NSN 5340-01-657-4682 has 2 manufacturer part numbers on file: 25506-TD1-1 (Darchem Engineering Ltd), 40076040 (Ministry of Defence, Future Aircraft Carrier Ipt (cvf Ipt)).
Key specifications for 25506-TD1-1: Overall Height: 43.0 MILLIMETERS NOMINAL MM; Part Name Assigned by Controlling Agency: TORSION DAMPER TD1-1; Unpackaged Unit Weight: 1.6 KILOGRAMS KG. 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.