PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D-1591Dampener,fluid Pressure

Hydro Mechanical Systems Inc · NSN 6685-01-582-0118 · FSC 6685 · No Item Name Available
Verified by PartsTable
NSN 6685-01-582-0118 — this item is cataloged by the U.S. Government under National Stock Number 6685-01-582-0118. Primary manufacturer part number: D-1591.
Features
  • Dampener,fluid Pressure — FSC 6685
  • 1 verified cross-reference
  • Primary manufacturer: Hydro Mechanical Systems Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Dampener,fluid Pressure, cataloged under National Stock Number 6685-01-582-0118, is classified within Federal Supply Class 6685 (No Item Name Available) of the Instruments and Laboratory Equipment group. The primary manufacturer of record is Hydro Mechanical Systems Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDampener,fluid Pressure
FSC / FSG6685 — No Item Name Available (FSG 66)
ManufacturersHydro Mechanical Systems Inc (CAGE 0L817)
Technical Specifications
ParameterValue
NSN6685-01-582-0118
Primary Part NumberD-1591
Item NameDampener,fluid Pressure
FSC / FSG6685 / 66 — No Item Name Available
ManufacturerHydro Mechanical Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
6105-00-900-8990D1591 INTERCHANGEABLE
Motor,alternating Current
Eaton Aerospace Llc Dba Eaton Inoac Div Fuel & Motion Control Systems Division
4310-01-183-0686100-D897 INTERCHANGEABLE
Crankcase,compressor
Rix Industries
4330-01-183-4768112-C733 INTERCHANGEABLE
Filter Body,fluid
Rix Industries
4310-01-184-39702JS2B-150B INTERCHANGEABLE
Compressor,reciprocating
Rix Industries
4310-01-260-8397A7-D1835 INTERCHANGEABLE
Connecting Rod,piston
Rix Industries
Cross-Reference Index
Part NumberManufacturer
D-1591 PRIMARY Hydro Mechanical Systems Inc (USA)
Related Parts
6105-00-900-8990INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
D1591
4310-01-183-0686INTERCHANGEABLE
CRANKCASE,COMPRESSOR
100-D897
4330-01-183-4768INTERCHANGEABLE
FILTER BODY,FLUID
112-C733
4310-01-184-3970INTERCHANGEABLE
COMPRESSOR,RECIPROCATING
2JS2B-150B
4310-01-260-8397INTERCHANGEABLE
CONNECTING ROD,PISTON
A7-D1835

Frequently Asked Questions

What is NSN 6685-01-582-0118?

NSN 6685-01-582-0118 is a Dampener,fluid Pressure, manufactured by Hydro Mechanical Systems Inc, classified under FSC 6685 (No Item Name Available). Status: active.

What are the part numbers for NSN 6685-01-582-0118?

NSN 6685-01-582-0118 has 1 cross-referenced part number: D-1591 (Hydro Mechanical Systems Inc).

What NSN replaces 6685-01-582-0118?

There are 5 known substitutes for 6685-01-582-0118: 6105-00-900-8990, 4310-01-183-0686, 4330-01-183-4768 and 2 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com