The Gun,flushing,radiator and Engine, cataloged under National Stock Number 4910-00-449-6790, is classified within Federal Supply Class 4910 (Motor Vehicle Maintenance and Repair Shop Specialized Equipment) of the Maintenance and Repair Shop Equipment group. The manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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.
| Parameter | Value |
|---|---|
| NSN | 4910-00-449-6790 |
| Primary Part Number | A-A-50311 |
| Item Name | Gun,flushing,radiator and Engine |
| FSC / FSG | 4910 / 49 — Motor Vehicle Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Federal Commercial Item Description Promulgated by General Services Administration Washington DC |
| Status | ACTIVE |
| General Characteristics Item Description | ADAPTER DATA 1.000 IN. ID THROUGH 2.250 IN. ID RANGE+ W/HEATER HOSE ADAPTER+ CONNECTION THD DATA 1/4-18 NPT FEMALE AIR CONNECTION; 3/4-11-1/2 NH FEMALE WATER CONNECTION 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 |
|---|---|
| A-A-50311 | Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA) |
| Reference | Meaning |
|---|---|
| 1348-00 | 5/9 Secondary reference Therm Processes Inc |
| MILG14562 | 5/9 Secondary reference U.S. Government activity |
| C3514 | 5/9 Secondary reference U.S. Government activity |
NSN 4910-00-449-6790 is a Gun,flushing,radiator and Engine, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4910, Motor Vehicle Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4910-00-449-6790 has 1 manufacturer part number on file: A-A-50311 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC).
2 possible matches (shared part number, not a government interchangeability claim): 4820-01-377-4219, 5331-01-501-7522. Verify interchangeability with system specifications before substitution.
Key specifications for A-A-50311: General Characteristics Item Description: ADAPTER DATA 1.000 IN. ID THROUGH 2.250 IN. ID RANGE+ W/HEATER HOSE ADAPTER+ CONNECTION THD DATA 1/4-18 NPT FEMALE AIR CONNECTION; 3/4-11-1/2 NH FEMALE WATER CONNECTION IN. 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.