The Cleaner,steam,pressure Jet,trail, cataloged under National Stock Number 4940-00-396-1660, 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. Government technical data includes 30 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 2 items share a part number with this NSN in the catalog (possible match — not a government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 | 4940-00-396-1660 |
| Primary Part Number | HRMAC |
| Item Name | Cleaner,steam,pressure Jet,trail |
| FSC / FSG | 4940 / 49 — Miscellaneous Maintenance and Repair Shop Specialized Equipment |
| Manufacturer | Clayton Manufacturing Company |
| Status | ACTIVE |
| Tire Type | PNEUMATIC |
| Nozzle Adjustability | NONADJUSTABLE |
| Cleaning Solution Maximum Discharge Rate | 150.0 GALLONS PER HOUR |
| Tire Size | ANY ACCEPTABLE |
| Capacity | 1.0 GALLONS |
| Steam Generator | INCLUDED |
| Hazard Protection Feature | NONMAGNETIC |
| Outside Water Source | NOT REQUIRED |
| Power Source | GASOLINE ENGINE |
| Hose Connection Quantity | 2 |
| Quantity | 1 |
| Cooling Method | AIR |
| Pump Quantity | 1 |
| Stored Material | FUEL AND SOAP CONCENTRATE AND WATER |
| Wheel Quantity | 4 |
| Wheel Arrangement Style | FRONT AND REAR, SINGLE |
| Maximum Liquid Jet Pressure Rating | 150.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Nondefinitive Spec/std Data | 1 TYPE |
| Power Source Horsepower Rating | 3.5 |
| Maximum Liquid Discharge Rate | 275.0 GALLONS PER HOUR |
| Pump Capacity | 275.0 GALLONS PER HOUR NOMINAL |
| Cylinder Quantity | 1 |
| Cleaning Gun Quantity | 2 |
| Storage Tank Quantity | 4 |
| Heating Method | GAS OR OIL |
| Maximum Cleaning Solution Jet Pressure Rating | 90.0 POUNDS PER SQUARE INCH (PSI) LBS |
| Mounting Type | TRAILER |
| Outside Steam Source | NOT REQUIRED |
| Furnished Items and Quantity | HOSE,ACID 1; HOSE,RINSE,25 FT 1; HOSE,RINSE,50 FT 1; HOSE,SUCTION 1; HOSE,VAPOR CLEANING,25 FT 1; HOSE,VAPOR CLEANING,50 FT 1; HOSE,WATER INLET 1; GUN,RINSE 1; GUN,VAPOR 1; ROPE,ENGINE STARTING 1; NOZZLE,FLAT,2 IN. 1; NOZZLE,FLAT,4 IN. 1; NOZZLE,ROUND 1; WRENCH,CHECK VALVE CAP 1 IN |
| Retractable Support Feature | NOT INCLUDED |
| 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 |
|---|---|
| HRMAC PRIMARY | Clayton Manufacturing Company (USA) |
| Reference | Meaning |
|---|---|
| MIL-C-4036 | 4/1 Identification reference U.S. Government activity |
NSN 4940-00-396-1660 is a Cleaner,steam,pressure Jet,trail, manufactured by Clayton Manufacturing Company, classified under FSC 4940, Miscellaneous Maintenance and Repair Shop Specialized Equipment. Status: active.
NSN 4940-00-396-1660 has 1 manufacturer part number on file: HRMAC (Clayton Manufacturing Company).
2 possible matches (shared part number, not a government interchangeability claim): 4940-00-977-9908, 4940-01-141-6139. Verify interchangeability with system specifications before substitution.
Key specifications for HRMAC: Tire Type: PNEUMATIC; Nozzle Adjustability: NONADJUSTABLE; Cleaning Solution Maximum Discharge Rate: 150.0 GALLONS PER HOUR; Tire Size: ANY ACCEPTABLE. 30 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.