PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

301596191Seat,valve

Nicholson Steam Trap Inc · NSN 4820-01-295-8540 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-295-8540 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-295-8540. Primary manufacturer part number: 301596191.
Features
  • Seat,valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Nicholson Steam Trap Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-295-8540, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Nicholson Steam Trap Inc. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-295-8540
Primary Part Number301596191
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNicholson Steam Trap Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5325-00-282-49775873 INTERCHANGEABLE
Ring,retaining
Eaton Corp Transmission Div
8010-00-348-77168010-00-348-7716 INTERCHANGEABLE
Remover,paint
General Services Administration Federal Supply Service
2805-00-364-4932005873 INTERCHANGEABLE
Dowel,end Plate
Caterpillar Inc Div Caterpillar Defense
5945-00-402-1698B07A312AC3 INTERCHANGEABLE
Relay,electromagnetic
Te Connectivity Corporation
2805-00-696-69475873 INTERCHANGEABLE
Brace,control Panel
R.h. Industries, Inc.
1650-00-829-9804DS-922331 INTERCHANGEABLE
Cylinder Block,hydraulic Motor-P
Eaton Aerospace, Llc Dba Jackson South
5950-00-936-503213217E3783 INTERCHANGEABLE
Transformer,current
Cecom Lr Center
5340-01-177-85545873-00 INTERCHANGEABLE
Bracket,solenoid Valve
Pentair Filtration Solutions, Llc
4730-01-296-2771422725 INTERCHANGEABLE
Adapter,straight,flange to Pipe
Nicholson Steam Trap Inc
3010-01-297-3534015494 INTERCHANGEABLE
Bellows,pressure
Nicholson Steam Trap Inc
Cross-Reference Index
Part NumberManufacturer
301596191 PRIMARY Nicholson Steam Trap Inc (USA)
5873 PIECE 6 AND 7 Nicholson Steam Trap Inc (USA)
5873 Nicholson Steam Trap Inc (USA)
Related Parts
5325-00-282-4977INTERCHANGEABLE
RING,RETAINING
5873
8010-00-348-7716INTERCHANGEABLE
REMOVER,PAINT
8010-00-348-7716
2805-00-364-4932INTERCHANGEABLE
DOWEL,END PLATE
005873
5945-00-402-1698INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
B07A312AC3
2805-00-696-6947INTERCHANGEABLE
BRACE,CONTROL PANEL
5873
1650-00-829-9804INTERCHANGEABLE
CYLINDER BLOCK,HYDRAULIC MOTOR-P
DS-922331
5950-00-936-5032INTERCHANGEABLE
TRANSFORMER,CURRENT
13217E3783
5340-01-177-8554INTERCHANGEABLE
BRACKET,SOLENOID VALVE
5873-00
4730-01-296-2771INTERCHANGEABLE
ADAPTER,STRAIGHT,FLANGE TO PIPE
422725
3010-01-297-3534INTERCHANGEABLE
BELLOWS,PRESSURE
015494
5950-01-443-8144INTERCHANGEABLE
TRANSFORMER,PULSE
5873
5315-01-459-5833INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
5873

Frequently Asked Questions

What is NSN 4820-01-295-8540?

NSN 4820-01-295-8540 is a Seat,valve, manufactured by Nicholson Steam Trap Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-295-8540?

NSN 4820-01-295-8540 has 3 cross-referenced part numbers: 301596191 (Nicholson Steam Trap Inc), 5873 PIECE 6 AND 7 (Nicholson Steam Trap Inc), 5873 (Nicholson Steam Trap Inc).

What NSN replaces 4820-01-295-8540?

There are 12 known substitutes for 4820-01-295-8540: 5325-00-282-4977, 8010-00-348-7716, 2805-00-364-4932 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 301596191?

Key specifications for 301596191: Special Features: WITH VALVE DISK. 1 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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