The Flange,connecting, cataloged under National Stock Number 4320-01-258-2731, is classified within Federal Supply Class 4320 (Power and Hand Pumps) of the Pumps and Compressors group. The manufacturer of record is Reidville Hydraulics & Mfg Inc. Government technical data includes 1 specification, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4320-01-258-2731 |
| Primary Part Number | 178 0264-001 |
| Item Name | Flange,connecting |
| FSC / FSG | 4320 / 43 — Power and Hand Pumps |
| Manufacturer | Reidville Hydraulics & Mfg Inc |
| Status | ACTIVE |
| General Characteristics Item Description | CAST IRON;8.189 IN.OD,4.815 IN. LG 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 |
|---|---|
| 178 0264-001 | Bae Systems Hagglunds Aktiebolag (SWE) |
| 178 0264-001 PRIMARY | Reidville Hydraulics & Mfg Inc (USA) |
| 178 0264-001 PRIMARY | Hagglunds Drives Inc (USA) |
| Reference | Meaning |
|---|---|
| 178 0264-001 | 5/9 Secondary reference Bae Systems Hagglunds Ab |
| 178 0264-001 | 5/9 Secondary reference Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Pump Division |
| 178 0264-001 | 5/9 Secondary reference Flodraulic Group Incorporated |
NSN 4320-01-258-2731 is a Flange,connecting, manufactured by Reidville Hydraulics & Mfg Inc, classified under FSC 4320, Power and Hand Pumps. Status: active.
NSN 4320-01-258-2731 has 3 manufacturer part numbers on file: 178 0264-001 (Bae Systems Hagglunds Aktiebolag), 178 0264-001 (Reidville Hydraulics & Mfg Inc), 178 0264-001 (Hagglunds Drives Inc).
Key specifications for 178 0264-001: General Characteristics Item Description: CAST IRON;8.189 IN.OD,4.815 IN. LG 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.