PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

118-5849Seat,valve

Caterpillar Inc Div Caterpillar Defense · NSN 4820-01-547-2542 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-547-2542 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-547-2542. Primary manufacturer part number: 118-5849.
Features
  • Seat,valve — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Caterpillar Inc Div Caterpillar Defense
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-547-2542, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Caterpillar Inc Div Caterpillar Defense. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-547-2542
Primary Part Number118-5849
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCaterpillar Inc Div Caterpillar Defense
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3110-00-227-360770241 INTERCHANGEABLE
Retainer and Rollers,bearing
Hamilton Sundstrand Corporation Dba Collins Aerospace
5999-00-740-7078022-22992 INTERCHANGEABLE
Pole Piece,magnet
Moog Inc
5930-01-008-4693 INTERCHANGEABLE
Switch,rotary
5120-01-434-9592 INTERCHANGEABLE
Punch,center,solid
1660-01-444-893670241 INTERCHANGEABLE
Diffuser,air,aircraft Heating an
Technical Heaters, Inc. Dba Technical Heaters Inc
Cross-Reference Index
Part NumberManufacturer
118-5849 PRIMARY Caterpillar Inc Div Caterpillar Defense (USA)
70241 Paccar Winch Inc Dba Paccar Winch Division (USA)
Related Parts
3110-00-227-3607INTERCHANGEABLE
RETAINER AND ROLLERS,BEARING
70241
5999-00-740-7078INTERCHANGEABLE
POLE PIECE,MAGNET
022-22992
5930-01-008-4693INTERCHANGEABLE
SWITCH,ROTARY
5120-01-434-9592INTERCHANGEABLE
PUNCH,CENTER,SOLID
1660-01-444-8936INTERCHANGEABLE
DIFFUSER,AIR,AIRCRAFT HEATING AN
70241

Frequently Asked Questions

What is NSN 4820-01-547-2542?

NSN 4820-01-547-2542 is a Seat,valve, manufactured by Caterpillar Inc Div Caterpillar Defense, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-547-2542?

NSN 4820-01-547-2542 has 2 cross-referenced part numbers: 118-5849 (Caterpillar Inc Div Caterpillar Defense), 70241 (Paccar Winch Inc Dba Paccar Winch Division).

What NSN replaces 4820-01-547-2542?

There are 5 known substitutes for 4820-01-547-2542: 3110-00-227-3607, 5999-00-740-7078, 5930-01-008-4693 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 118-5849?

Key specifications for 118-5849: End Item Identification: 3830-01-538-1421, WINCH ATTACHMENT, SINGLE DRUM, MODEL PA80; Part Name Assigned by Controlling Agency: SEAT, CHECK VALVE; Special Features: NHA IS CLUTCH ASSEMBLY. 3 total characteristics are documented in the Federal Logistics Information System.

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