The Valve,bleeder,hydraulic System, cataloged under National Stock Number 4820-01-181-3752, is classified within Federal Supply Class 4820 (Valves, Nonpowered) of the Valves group. The manufacturer of record is Milwaukee Cylinder Inc. Government technical data includes 3 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. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-181-3752 |
| Primary Part Number | A-6601-N |
| Item Name | Valve,bleeder,hydraulic System |
| FSC / FSG | 4820 / 48 — Valves, Nonpowered |
| Manufacturer | Milwaukee Cylinder Inc |
| Status | ACTIVE |
| Media for Which Designed | HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE |
| Material | STEEL COMP 316 BODY |
| Valve Operation Method | MANUALMANUAL |
| 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 |
|---|---|
| C-6601PC24 | Milwaukee Cylinder Inc (USA) |
| A-6601-N PRIMARY | Milwaukee Cylinder Inc (USA) |
| D-6600 ITEM 24 | Milwaukee Cylinder Inc (USA) |
NSN 4820-01-181-3752 is a Valve,bleeder,hydraulic System, manufactured by Milwaukee Cylinder Inc, classified under FSC 4820, Valves, Nonpowered. Status: active.
NSN 4820-01-181-3752 has 3 manufacturer part numbers on file: C-6601PC24 (Milwaukee Cylinder Inc), A-6601-N (Milwaukee Cylinder Inc), D-6600 ITEM 24 (Milwaukee Cylinder Inc).
Key specifications for A-6601-N: Special Features: PURGE VALVE ON A HYDRAULIC PUMP UNIT; SS4P-4 OR 1/2-20 ST. THD; CRES; AISI 316; NUPRO W/O "O"-RINGPURGE VALVE ON A HYDRAULIC PUMP UNIT; SS4P-4 OR 1/2-20 ST. THD; CRES; AISI 316; NUPRO W/O "O"-RING; Media for Which Designed: HYDRAULIC FLUID, PETROLEUM BASE SINGLE RESPONSE; Part Name Assigned by Controlling Agency: PURGE VALVEPURGE VALVE; End Item Identification: SSGN CLASS SUBMARINE; SUBMARINE HULL STRUCTURE; VIRGINIA CLASS SUBMARINE, SSN-774; SUBMARINE HYDRAULIC SYSTEMS; SUBMARINE AUXILLARY AND MISCELLANEOUS SYSTEMS; TOWED ARRAY HANDLING EQUIPMENT; LOS ANGELES CLASS SSN (688); SUBMARINE SHIP CONTROL AND NAVIGATION SYSTEMSSSGN CLASS SUBMARINE; SUBMARINE HULL STRUCTURE; VIRGINIA CLASS SUBMARINE, SSN-774; SUBMARINE HYDRAULIC SYSTEMS; SUBMARINE AUXILLARY AND MISCELLANEOUS SYSTEMS; TOWED ARRAY HANDLING EQUIPMENT; LOS ANGELES CLASS SSN (688); SUBMARINE SHIP CONTROL AND NAVIGATION SYSTEMS. 3 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.