The Filter Element,intake Air Cleane, cataloged under National Stock Number 4310-01-499-3673, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 9 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4310-01-499-3673 |
| Primary Part Number | 470700PP1 |
| Item Name | Filter Element,intake Air Cleane |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 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 |
|---|---|
| 203C | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| 470700PP1 PRIMARY | Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions (USA) |
| Reference | Meaning |
|---|---|
| P116/PNO | 5/9 Secondary reference Falls Filtration Technologies, Inc. |
| PL12498531 PC NO 306 | 5/9 Secondary reference U.S. Government activity |
| 203C | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| PL12498531 PC NO 306 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions |
| 203C | 3/9 Design control — primary reference U.S. Government activity |
| PL12498531 PC NO 306 | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| 203C | 5/9 Secondary reference Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions |
| PL12498531 PC NO 306 | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
| 203C | 5/9 Secondary reference Siemens Energy, Inc. Dba Dresser-Rand |
NSN 4310-01-499-3673 is a Filter Element,intake Air Cleane, manufactured by Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-499-3673 has 2 manufacturer part numbers on file: 203C (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions), 470700PP1 (Curtiss-Wright Electro-Mechanical Corp Dba Steam & Air Solutions Div Curtiss-Wright Steam and Air Solutions).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-721-7494, 5840-01-721-8820. Verify interchangeability with system specifications before substitution.
Key specifications for 470700PP1: Special Features: TWO PANELS PER SILENCER; NOMINAL SIZE 4X20X25; MADE OF A WOVEN CLOTH ELEMENT; Part Name Assigned by Controlling Agency: ELEMENT,INTAKE FILTER; End Item Identification: COMPRESSOR,CENTRIFUGAL. 0 specifications are documented in the U.S. Government catalog.
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.