PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1781Rest,float,valve

Robert H Wager Co Inc · NSN 4820-01-257-1395 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-257-1395 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-257-1395. Primary manufacturer part number: 1781.
Features
  • Rest,float,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Robert H Wager Co Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Rest,float,valve, cataloged under National Stock Number 4820-01-257-1395, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Robert H Wager Co Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameRest,float,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersRobert H Wager Co Inc (CAGE 79128)
Technical Specifications
ParameterValue
NSN4820-01-257-1395
Primary Part Number1781
Item NameRest,float,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerRobert H Wager Co Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4820-00-036-04491781 INTERCHANGEABLE
Diaphragm,valve,flat
Imi Cash Valve Inc
5940-00-202-023717-2 INTERCHANGEABLE
Terminal Board
Cinch Connectivity Solutions Inc.
5120-00-293-0032 INTERCHANGEABLE
Pliers
3120-00-324-86581781 INTERCHANGEABLE
Bearing,sleeve
Thermo Electron Corporation Dba Iec Centrifuge Div Laboratory Equipment Divsion
6645-00-515-4348 INTERCHANGEABLE
Clock,panel
5940-00-636-60251382B INTERCHANGEABLE
Terminal Board
Birnbach Co Inc
6685-00-641-6126 INTERCHANGEABLE
Indicator,humidity,plug
4820-01-074-23973317508PC16 INTERCHANGEABLE
Stem,fluid Valve
Naval Sea Systems Command
6640-01-302-26581781 INTERCHANGEABLE
Bearing,upper,centrifuge
Becton Dickinson and Co Primary Care Diagnostics Div
6740-01-382-8549 INTERCHANGEABLE
Adapter,photographic
Cross-Reference Index
Part NumberManufacturer
1781 PRIMARY Robert H Wager Co Inc (USA)
Related Parts
4820-00-036-0449INTERCHANGEABLE
DIAPHRAGM,VALVE,FLAT
1781
5940-00-202-0237INTERCHANGEABLE
TERMINAL BOARD
17-2
5120-00-293-0032INTERCHANGEABLE
PLIERS
3120-00-324-8658INTERCHANGEABLE
BEARING,SLEEVE
1781
6645-00-515-4348INTERCHANGEABLE
CLOCK,PANEL
5940-00-636-6025INTERCHANGEABLE
TERMINAL BOARD
1382B
6685-00-641-6126INTERCHANGEABLE
INDICATOR,HUMIDITY,PLUG
4820-01-074-2397INTERCHANGEABLE
STEM,FLUID VALVE
3317508PC16
6640-01-302-2658INTERCHANGEABLE
BEARING,UPPER,CENTRIFUGE
1781
6740-01-382-8549INTERCHANGEABLE
ADAPTER,PHOTOGRAPHIC

Frequently Asked Questions

What is NSN 4820-01-257-1395?

NSN 4820-01-257-1395 is a Rest,float,valve, manufactured by Robert H Wager Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-257-1395?

NSN 4820-01-257-1395 has 1 cross-referenced part number: 1781 (Robert H Wager Co Inc).

What NSN replaces 4820-01-257-1395?

There are 10 known substitutes for 4820-01-257-1395: 4820-00-036-0449, 5940-00-202-0237, 5120-00-293-0032 and 7 more. Verify interchangeability with system specifications before substitution.

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