The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-407-3547, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc.. Government technical data includes 2 specifications, 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 1 item shares a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-407-3547 |
| Primary Part Number | 79947 |
| Item Name | Valve,bleeder,hydraulic System |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc. |
| Status | ACTIVE |
| Operating Pressure | 3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS |
| Media for Which Designed | FUEL/OIL, HYDROCARBON SINGLE RESPONSE |
| 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 |
|---|---|
| 79947 PRIMARY | Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc. (USA) |
| 33674 | Amz Alabama Inc. (USA) |
| 33674 | Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc (USA) |
| Reference | Meaning |
|---|---|
| 33674 | 5/9 Secondary reference Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc. |
NSN 4820-01-407-3547 is a Valve,bleeder,hydraulic System, manufactured by Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc., classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-407-3547 has 3 manufacturer part numbers on file: 79947 (Hampton Hydraulics, Llc. Dba Great Bend Industries Div Hampton Hydraulics, Llc.), 33674 (Amz Alabama Inc.), 33674 (Bae Systems Tactical Vehicle Systems Lp Dba Data Systems International Inc).
1 possible match (shared part number, not a government interchangeability claim): 4240-01-586-3400. Verify interchangeability with system specifications before substitution.
Key specifications for 79947: Operating Pressure: 3500.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Special Features: COUNTER BALANCE VALVE, "SUN" CBCA-LHN, TORQUE 30.0-35.0 FT.LBS FT; Media for Which Designed: FUEL/OIL, HYDROCARBON SINGLE RESPONSE; End Item Identification: WEAPON SYSTEM CODE XE, TRUCK, FAMILY OF MEDIUM TACTICLE VEHICLE (FMTV); 2320-01-354-4528. 2 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.