The Block,displacement,fluid, cataloged under National Stock Number 4320-00-407-0655, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Us Army Aviation and Missile Command. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers 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through both NSN and commercial part number lookups. 2 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-00-407-0655 |
| Primary Part Number | 10178245 |
| Item Name | Block,displacement,fluid |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Us Army Aviation and Missile Command |
| Status | ACTIVE |
| General Characteristics Item Description | 5.620 IN. LG,5.250 IN. W,1.000 IN. THK 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 |
|---|---|
| 10178245 | Raytheon Company (USA) |
| 10178245 | Raytheon Company Dba Raytheon Co (USA) |
| FRE10178245 | Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc (USA) |
| 10178245 PRIMARY | Us Army Aviation and Missile Command (USA) |
| 10178245 | Precision Specialty Corp (USA) |
| 10178245 | Spencer Industries Inc (USA) |
| Reference | Meaning |
|---|---|
| 10178245 | 5/9 Secondary reference American Poly-Therm Co., Inc. |
| 10178245 | 5/9 Secondary reference Raytheon Company Div Corp |
NSN 4320-00-407-0655 is a Block,displacement,fluid, manufactured by Us Army Aviation and Missile Command, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-00-407-0655 has 6 manufacturer part numbers on file: 10178245 (Raytheon Company), 10178245 (Raytheon Company Dba Raytheon Co), FRE10178245 (Freehold Manufacturing Assembly Company, Inc. Dba Freehold Manufacturing Assembly Co Inc), 10178245 (Us Army Aviation and Missile Command), 10178245 (Precision Specialty Corp) and 1 more.
Key specifications for 10178245: General Characteristics Item Description: 5.620 IN. LG,5.250 IN. W,1.000 IN. THK 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.