The Diaphragm,fuel Pump, cataloged under National Stock Number 4940-00-355-2821, is classified within Federal Supply Class 4940 (Miscellaneous Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Clayton Manufacturing Company. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Diaphragm,fuel Pump |
| FSC / FSG | 4940 — Miscellaneous Maintenance and Repair Shop Specialized Equipment (FSG 49) |
| Manufacturers | Clayton Manufacturing Company (CAGE 12736) |
| Parameter | Value |
|---|---|
| NSN | 4940-00-355-2821 |
| Primary Part Number | K5091 |
| Item Name | Diaphragm,fuel Pump |
| FSC / FSG | 4940 / 49 — Miscellaneous Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Clayton Manufacturing Company |
| Status | ACTIVE |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Part Number | Manufacturer |
|---|---|
| K5091 PRIMARY | Clayton Manufacturing Company (USA) |
NSN 4940-00-355-2821 is a Diaphragm,fuel Pump, manufactured by Clayton Manufacturing Company, classified under FSC 4940, Miscellaneous Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4940-00-355-2821 has 1 manufacturer part number on file: K5091 (Clayton Manufacturing Company).
1 possible match (shared part number, not a government interchangeability claim): 5120-00-449-8244. Verify interchangeability with system specifications before substitution.
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.