The Element,inlet Filter, cataloged under National Stock Number 4310-01-072-3492, is classified within Federal Supply Class 4310 (Compressors and Vacuum Pumps) of the Pumps and Compressors group. The manufacturer of record is Leroi International Inc Dba Compair Leroi. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 1 manufacturer part number 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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 | 4310-01-072-3492 |
| Primary Part Number | 55776 |
| Item Name | Element,inlet Filter |
| FSC / FSG | 4310 / 43 — Compressors and Vacuum Pumps |
| Manufacturer | Leroi International Inc Dba Compair Leroi |
| Status | ACTIVE |
| General Characteristics Item Description | 8.150 IN. W. OUTSIDE,5.750 IN. W. INSIDE,2.160 IN. THK,PART OF 17 PUM HYDRO VANE AIR COMPRESSOR P/N 639AS2778,USED ON GCU-26/E GUIDED MISSILE RE CHARG UNIT P/N 639AS2775 IN |
| 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 |
|---|---|
| 55776 PRIMARY | Leroi International Inc Dba Compair Leroi (USA) |
| Reference | Meaning |
|---|---|
| 55776 | 3/9 Design control — primary reference Compair Kellogg Div of Robertshaw Controls Co |
NSN 4310-01-072-3492 is a Element,inlet Filter, manufactured by Leroi International Inc Dba Compair Leroi, classified under FSC 4310, Compressors and Vacuum Pumps. Status: active.
NSN 4310-01-072-3492 has 1 manufacturer part number on file: 55776 (Leroi International Inc Dba Compair Leroi).
Key specifications for 55776: General Characteristics Item Description: 8.150 IN. W. OUTSIDE,5.750 IN. W. INSIDE,2.160 IN. THK,PART OF 17 PUM HYDRO VANE AIR COMPRESSOR P/N 639AS2778,USED ON GCU-26/E GUIDED MISSILE RE CHARG UNIT P/N 639AS2775 IN; End Item Identification: AIM-9L MISSILE,RAYTHEON CORP,639AS999. 1 specification is 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.