The Spacer,pump Mountng, cataloged under National Stock Number 4320-01-451-5049, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Evac North America Inc. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Item Name | Spacer,pump Mountng |
| FSC / FSG | 4320 — Power and Hand Pumps (FSG 43) |
| Manufacturers | Evac North America Inc (CAGE 47WD8) |
| Parameter | Value |
|---|---|
| NSN | 4320-01-451-5049 |
| Primary Part Number | 3500084 |
| Item Name | Spacer,pump Mountng |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Evac North America Inc |
| 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 |
|---|---|
| 3500084 PRIMARY | Evac North America Inc (USA) |
| 3900014 ITEM 87 | Evac North America Inc (USA) |
| Reference | Meaning |
|---|---|
| 3500084 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
| 390004 | D/9 Drawing number reference only Envirovac Inc Dba Monogram Systems-Rockford Div |
| 3900014 ITEM 87 | 5/9 Secondary reference Envirovac Inc Dba Monogram Systems-Rockford Div |
NSN 4320-01-451-5049 is a Spacer,pump Mountng, manufactured by Evac North America Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-451-5049 has 2 manufacturer part numbers on file: 3500084 (Evac North America Inc), 3900014 ITEM 87 (Evac North America Inc).
2 possible matches (shared part number, not a government interchangeability claim): 5935-01-498-0604, 6515-01-561-2588. 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.