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NSN 4730-01-415-6374Government record, cited
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Manifold Assembly, Hydraulic4730-01-415-6374

NSN 4730-01-415-6374 · NIIN 014156374 · Part number 558-6406591-MPAD-ASSY-A
Naval Sea Systems Command · FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings · FSG 47 — Pipe, Tubing, Hose, and Fittings · CAGE 53711
Government record, cited
NSN 4730-01-415-6374 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-415-6374. Manufacturer of record part number: 558-6406591-MPAD-ASSY-A.
Also searched as  4730-01-415-6374 · 4730014156374 · NIIN 014156374 · 01-415-6374 · FSC 4730 Hose, Pipe, Tube, Lubrication, and Railing Fittings · CAGE 53711 · 558-6406591-MPAD-ASSY-A · 6406591 · 211059841 · 556-6406591-MPA · 6406591-ASSY A
Nearby stock numbers  ·
HOSE FITTING
4730-01-415-6374 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
  • Manifold Assembly,hydraulic — FSC 4730
  • Furnished Items and Quantity: 2 VALVE
  • End Item Design Control Activity: 96169
  • End Connection Quantity: 4
  • End Item Identification Designator: SEAWOLF CLASS SSN
  • 2 manufacturer part numbers on file
  • Manufacturer of record: Naval Sea Systems Command
Identification
  • NSN: 4730-01-415-6374
  • NIIN: 014156374
  • FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
  • FSG: 47 — Pipe, Tubing, Hose, and Fittings
  • Primary part number: 558-6406591-MPAD-ASSY-A
  • Manufacturer: Naval Sea Systems Command
General Description

The Manifold Assembly,hydraulic, cataloged under National Stock Number 4730-01-415-6374, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Naval Sea Systems Command. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 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through both NSN and commercial part number lookups. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 11 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-415-6374
Primary Part Number558-6406591-MPAD-ASSY-A
Item NameManifold Assembly,hydraulic
FSC / FSG4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
ManufacturerNaval Sea Systems Command
StatusACTIVE
Furnished Items and Quantity2 VALVE
End Item Design Control Activity96169
End Connection Quantity4
End Item Identification DesignatorSEAWOLF CLASS SSN
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
⇄ Related Items 11
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
4820-01-415-6660218016108 POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-6661218016109 POSSIBLE MATCH
SEAT,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-6662218015792 POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-6664218015975 POSSIBLE MATCH
DISK,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-6665218015791 POSSIBLE MATCH
STEM,FLUID VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-6666218015781 POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-7423218015780 POSSIBLE MATCH
CAP,VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-7428218015988 AND 218016108 POSSIBLE MATCH
PARTS KIT,BALL VALVE
Possible match (shared part number)Naval Sea Systems Command
4820-01-415-7431218012892 AND 218016109 POSSIBLE MATCH
PARTS KIT,BALL VALVE
Possible match (shared part number)Naval Sea Systems Command
4730-01-417-86856406591-ASSY-C POSSIBLE MATCH
MANIFOLD ASSEMBLY,HYDRAULIC
Possible match (shared part number)Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
558-6406591-MPAD-ASSY-A Naval Sea Systems Command (USA)
6406591-ASSY A Naval Sea Systems Command (USA)
Reference documents
ReferenceMeaning
6406591 D/9 Drawing number reference only
Naval Sea Systems Command
211059841 3/2 Design control — primary reference
U.S. Government activity
556-6406591-MPA C/1 Advisory reference — outside the item-of-supply concept
Naval Sea Systems Command
Related Parts
4820-01-415-6660POSSIBLE MATCH
SEAT,VALVE
218016108
4820-01-415-6661POSSIBLE MATCH
SEAT,VALVE
218016109
4820-01-415-6662POSSIBLE MATCH
STEM,FLUID VALVE
218015792
4820-01-415-6664POSSIBLE MATCH
DISK,VALVE
218015975
4820-01-415-6665POSSIBLE MATCH
STEM,FLUID VALVE
218015791
4820-01-415-6666POSSIBLE MATCH
CAP,VALVE
218015781
4820-01-415-7423POSSIBLE MATCH
CAP,VALVE
218015780
4820-01-415-7428POSSIBLE MATCH
PARTS KIT,BALL VALVE
218015988 AND 218016108
4820-01-415-7431POSSIBLE MATCH
PARTS KIT,BALL VALVE
218012892 AND 218016109
4730-01-417-8685POSSIBLE MATCH
MANIFOLD ASSEMBLY,HYDRAULIC
6406591-ASSY-C
4730-01-417-9063POSSIBLE MATCH
MANIFOLD ASSEMBLY,HYDRAULIC
6406591-ASSY-D

Frequently Asked Questions

What is NSN 4730-01-415-6374?

NSN 4730-01-415-6374 is a Manifold Assembly,hydraulic, manufactured by Naval Sea Systems Command, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.

What part numbers are listed for NSN 4730-01-415-6374?

NSN 4730-01-415-6374 has 2 manufacturer part numbers on file: 558-6406591-MPAD-ASSY-A (Naval Sea Systems Command), 6406591-ASSY A (Naval Sea Systems Command).

What NSN replaces 4730-01-415-6374?

11 possible matches (shared part number, not a government interchangeability claim): 4820-01-415-6660, 4820-01-415-6661, 4820-01-415-6662. Verify interchangeability with system specifications before substitution.

What are the specifications of 558-6406591-MPAD-ASSY-A?

Key specifications for 558-6406591-MPAD-ASSY-A: Furnished Items and Quantity: 2 VALVE; End Item Design Control Activity: 96169; End Connection Quantity: 4; End Item Identification Designator: SEAWOLF CLASS SSN. 4 specifications are documented in the U.S. Government catalog.

Is NSN 4730-01-415-6374 hazardous material?

No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

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.

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✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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