The Condensing Unit,refrigerating, cataloged under National Stock Number 4130-00-391-9457, is classified within Federal Supply Class 4130 (Refrigeration and Air Conditioning Components) of the Refrigeration, AC, and Air Circulating Equipment group. The manufacturer of record is Carrier Corp. Government technical data includes 27 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government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 | 4130-00-391-9457 |
| Primary Part Number | 53MRD1301N3 |
| Item Name | Condensing Unit,refrigerating |
| FSC / FSG | 4130 / 41 — Refrigeration and Air Conditioning Components |
| Manufacturer | Carrier Corp |
| Status | ACTIVE |
| Refrigeration Flow Rate in Tons Per Hour | 1.200 |
| Phase | THREE |
| Condenser Heat Transfer Area | 19.000 SQUARE FEET |
| Separate Liquid Receiver Capacity | 1.250 CUBIC FEET |
| Frequency in Hertz | 60.0 |
| Drive Type | DIRECT |
| Compressing Unit Design Type | OPEN |
| Compressing Unit Cylinder Quantity | 2 |
| Discharge Pressure | 126.2 POUNDS PER SQUARE INCH GAGE LBS |
| Compressing Unit Type | RECIPROCATING |
| Compressing Unit Stroke Length | 2.000 INCHES IN |
| Compressor Speed at Rated Capacity in RPM | 1750.0 |
| Compressing Unit Cylinder Bore Diameter | 2.5000 INCHES NOMINAL IN |
| Prime Mover Horsepower Rating | 5.0 |
| Electric Motor Quantity | 1 |
| Condenser Cooling Medium | WATER |
| Ambient Temp | 110.0 FAHRENHEIT DEGF |
| Component for Which Designed | COMPRESSOR |
| Suction Pressure | ERR-060 |
| Condenser Shell Outside Diameter | 6.625 INCHES NOMINAL IN |
| Compressor Cooling Medium | AIR |
| Operating Speed at Rated Capacity in RPM | 1750.0 |
| Water for Which Designed | SALT |
| Condenser Type | SHELL OR TUBE |
| Condenser Overall Length | 71.188 INCHES NOMINAL IN |
| Prime Mover Type | ELECTRIC MOTOR |
| Media for Which Designed | FREON 12 USE REFRIGERANT R-12 |
| 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 |
|---|---|
| 53MRD1301N3 PRIMARY | Carrier Corp (USA) |
| Reference | Meaning |
|---|---|
| MILR16743 | 4/1 Identification reference U.S. Government activity |
| S5901-1434128 | 5/2 Secondary reference U.S. Government activity |
NSN 4130-00-391-9457 is a Condensing Unit,refrigerating, manufactured by Carrier Corp, classified under FSC 4130, Refrigeration and Air Conditioning Components. Status: active.
NSN 4130-00-391-9457 has 1 manufacturer part number on file: 53MRD1301N3 (Carrier Corp).
4 possible matches (shared part number, not a government interchangeability claim): 4130-00-555-1499, 4820-00-752-9809, 4820-00-946-2700. Verify interchangeability with system specifications before substitution.
Key specifications for 53MRD1301N3: Refrigeration Flow Rate in Tons Per Hour: 1.200; Phase: THREE; Condenser Heat Transfer Area: 19.000 SQUARE FEET; Separate Liquid Receiver Capacity: 1.250 CUBIC FEET. 27 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.