PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

49-4Ring,piston

F and L Fluid Components · NSN 2805-01-305-0059 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-01-305-0059 — this item is cataloged by the U.S. Government under National Stock Number 2805-01-305-0059. Primary manufacturer part number: 49-4.
Features
  • Ring,piston — FSC 2805
  • 2 verified cross-references
  • Primary manufacturer: F and L Fluid Components
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Ring,piston, cataloged under National Stock Number 2805-01-305-0059, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is F and L Fluid Components. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRing,piston
FSC / FSG2805 — No Item Name Available (FSG 28)
ManufacturersF and L Fluid Components (CAGE 9M538); Carter Controls a Figgie Intl Co (CAGE 99682)
Technical Specifications
ParameterValue
NSN2805-01-305-0059
Primary Part Number49-4
Item NameRing,piston
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerF and L Fluid Components
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5940-00-242-062455010103-000 INTERCHANGEABLE
Terminal,lug
Dne Technologies, Inc
2920-00-244-6588494 INTERCHANGEABLE
Starter,engine,electrical
Mack Trucks Inc Parts Opn
4730-00-254-62110716-MM5-BB02 INTERCHANGEABLE
Elbow,pipe to Tube
The Shyft Group Usa, Inc Dba the Shyft Group Usa, Inc
5120-00-302-5698494 INTERCHANGEABLE
Punch Set,drive Pin
Mayhew Steel Products Inc
5950-00-473-6060722836-5REVA INTERCHANGEABLE
Transformer,pulse
Raytheon Company Div Rmd Strategic
3020-00-870-7272 INTERCHANGEABLE
Chain,silent
8030-00-926-21358030-00-926-2135 INTERCHANGEABLE
Filler,dent,metal Surface
General Services Administration Federal Supply Service
2530-01-034-30841669493C91 INTERCHANGEABLE
Brake Booster Assembly,master Cy
Navistar Intl Corp Truck Br Ohio Plant
5330-01-086-351749-4 INTERCHANGEABLE
Gasket
Rix Industries
6645-01-449-0785 INTERCHANGEABLE
Stopwatch
Cross-Reference Index
Part NumberManufacturer
49-4 PRIMARY F and L Fluid Components (USA)
BUL100J PIECE 49 Carter Controls a Figgie Intl Co (USA)
Related Parts
5940-00-242-0624INTERCHANGEABLE
TERMINAL,LUG
55010103-000
2920-00-244-6588INTERCHANGEABLE
STARTER,ENGINE,ELECTRICAL
494
4730-00-254-6211INTERCHANGEABLE
ELBOW,PIPE TO TUBE
0716-MM5-BB02
5120-00-302-5698INTERCHANGEABLE
PUNCH SET,DRIVE PIN
494
5950-00-473-6060INTERCHANGEABLE
TRANSFORMER,PULSE
722836-5REVA
3020-00-870-7272INTERCHANGEABLE
CHAIN,SILENT
8030-00-926-2135INTERCHANGEABLE
FILLER,DENT,METAL SURFACE
8030-00-926-2135
2530-01-034-3084INTERCHANGEABLE
BRAKE BOOSTER ASSEMBLY,MASTER CY
1669493C91
5330-01-086-3517INTERCHANGEABLE
GASKET
49-4
6645-01-449-0785INTERCHANGEABLE
STOPWATCH
5910-01-575-7473INTERCHANGEABLE
CAPACITOR ASSEMBLY
494

Frequently Asked Questions

What is NSN 2805-01-305-0059?

NSN 2805-01-305-0059 is a Ring,piston, manufactured by F and L Fluid Components, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-01-305-0059?

NSN 2805-01-305-0059 has 2 cross-referenced part numbers: 49-4 (F and L Fluid Components), BUL100J PIECE 49 (Carter Controls a Figgie Intl Co).

What NSN replaces 2805-01-305-0059?

There are 11 known substitutes for 2805-01-305-0059: 5940-00-242-0624, 2920-00-244-6588, 4730-00-254-6211 and 8 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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