PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2476Piston,valve

Racal Panorama Inc · NSN 4820-01-273-3077 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-273-3077 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-273-3077. Primary manufacturer part number: 2476.
Features
  • Piston,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Racal Panorama Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Piston,valve, cataloged under National Stock Number 4820-01-273-3077, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Racal Panorama Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-273-3077
Primary Part Number2476
Item NamePiston,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerRacal Panorama Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5910-00-270-50712476 INTERCHANGEABLE
Capacitor,fixed,paper Dielectric
Cornell-Dubilier Marketing Inc
4920-00-708-30872476 INTERCHANGEABLE
Case,test Set
Marvel Manufacturing Co Div the Marvel Manufacturing Company
5330-00-989-69252476 INTERCHANGEABLE
Gasket
Siemens Water Technologies Corp. Div Wallace & Tiernan Products
5925-01-224-87202476 INTERCHANGEABLE
Circuit Breaker Box
Pauluhn Electric Manufacturing, Llp Dba Pauluhn Electric
5961-01-289-4239 INTERCHANGEABLE
Semiconductor Device,diode
5310-01-309-26832476 INTERCHANGEABLE
Washer,flat
Hill-Rom Canada Ltd
5340-01-324-66982476 INTERCHANGEABLE
Snap Hook
Wichard, Inc. Dba Wichard Inc
Cross-Reference Index
Part NumberManufacturer
2476 Racal Panorama Inc (USA)
Related Parts
5910-00-270-5071INTERCHANGEABLE
CAPACITOR,FIXED,PAPER DIELECTRIC
2476
4920-00-708-3087INTERCHANGEABLE
CASE,TEST SET
2476
5330-00-989-6925INTERCHANGEABLE
GASKET
2476
5925-01-224-8720INTERCHANGEABLE
CIRCUIT BREAKER BOX
2476
5961-01-289-4239INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5310-01-309-2683INTERCHANGEABLE
WASHER,FLAT
2476
5340-01-324-6698INTERCHANGEABLE
SNAP HOOK
2476

Frequently Asked Questions

What is NSN 4820-01-273-3077?

NSN 4820-01-273-3077 is a Piston,valve, manufactured by Racal Panorama Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-273-3077?

NSN 4820-01-273-3077 has 1 cross-referenced part number: 2476 (Racal Panorama Inc).

What NSN replaces 4820-01-273-3077?

There are 7 known substitutes for 4820-01-273-3077: 5910-00-270-5071, 4920-00-708-3087, 5330-00-989-6925 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2476?

Key specifications for 2476: End Item Identification: SELF CONTAINED BREATHING APPARATUS; Special Features: MATL:BRASS,NEOPRENE RUBBER,POLYTETRAFLUOROETHYLENE;C/O:1 EA PISTON,P/N 2474-2;1 EA "O" RING,P/N 1051-8;1 EA RING-BACK-UP;USED ON P/N 2855-2,CAGEC 18196,NOT STOCK LISTED;FSC APPLICATION DATA:VALVE,SAFETY RELIEF. 2 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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