The Lock,valve Spring Retainer, cataloged under National Stock Number 2805-01-733-9764, is classified within Federal Supply Class 2805 (Gasoline Reciprocating Engines, Except Aircraft; and Components) of the Engines, Turbines, and Components group. The manufacturer of record is Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc. The record lists 3 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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.
| Item Name | Lock,valve Spring Retainer |
| FSC / FSG | 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components (FSG 28) |
| Manufacturers | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (CAGE 0ASY6) |
| Parameter | Value |
|---|---|
| NSN | 2805-01-733-9764 |
| Primary Part Number | M4661-CC |
| Item Name | Lock,valve Spring Retainer |
| FSC / FSG | 2805 / 28 — Gasoline Reciprocating Engines, Except Aircraft; and Components |
| Manufacturer | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc |
| Status | ACTIVE |
| 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 |
|---|---|
| M4661-CC PRIMARY | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| M4637-3079/ITEM 4 PRIMARY | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| M4637-3079-PC NO-4 PRIMARY | Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc (USA) |
| Reference | Meaning |
|---|---|
| M4637-3079 | D/9 Drawing number reference only Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc |
NSN 2805-01-733-9764 is a Lock,valve Spring Retainer, manufactured by Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc, classified under FSC 2805, Gasoline Reciprocating Engines, Except Aircraft; and Components. Status: active.
NSN 2805-01-733-9764 has 3 manufacturer part numbers on file: M4661-CC (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc), M4637-3079/ITEM 4 (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc), M4637-3079-PC NO-4 (Derbyshire Marine Products, Llc Dba Derbyshire Marine Products Llc).
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.