PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N730PC4Diaphragm,valve,flat

Grove Valve Operations · NSN 4820-00-950-1781 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-950-1781 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-950-1781. Primary manufacturer part number: N730PC4.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 6 verified cross-references
  • Primary manufacturer: Grove Valve Operations
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-950-1781, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Grove Valve Operations. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references 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.

Technical Specifications
ParameterValue
NSN4820-00-950-1781
Primary Part NumberN730PC4
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGrove Valve Operations
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
2010-00-036-2716 INTERCHANGEABLE
Shaft,coupling
4810-00-878-0385090-03008 INTERCHANGEABLE
Diaphragm,actuator Valve,special
Grove Valve Operations
4810-00-926-4241 INTERCHANGEABLE
Seat,valve
4820-00-935-9410 INTERCHANGEABLE
Stem,fluid Valve
5330-00-989-1377 INTERCHANGEABLE
Gasket
5360-00-989-1381 INTERCHANGEABLE
Spring,helical,compression
5365-01-065-6737 INTERCHANGEABLE
Bushing,machine Thread
5120-01-101-3874N-790 INTERCHANGEABLE
Screwdriver,cross Tip
Neuses P K Inc
4820-01-146-1413 INTERCHANGEABLE
Bushing,valve Seat
5330-01-229-2242 INTERCHANGEABLE
Gasket
Cross-Reference Index
Part NumberManufacturer
N730PC4 Grove Valve Operations (USA)
N-790 Grove Valve Operations (USA)
N-656 PC 16 Grove Valve Operations (USA)
090-03008 Grove Valve Operations (USA)
82286 SPCLN Grove Valve Operations (USA)
N790PC16 Grove Valve Operations (USA)
Related Parts
2010-00-036-2716INTERCHANGEABLE
SHAFT,COUPLING
4810-00-878-0385INTERCHANGEABLE
DIAPHRAGM,ACTUATOR VALVE,SPECIAL
090-03008
4810-00-926-4241INTERCHANGEABLE
SEAT,VALVE
4820-00-935-9410INTERCHANGEABLE
STEM,FLUID VALVE
5330-00-989-1377INTERCHANGEABLE
GASKET
5360-00-989-1381INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
5365-01-065-6737INTERCHANGEABLE
BUSHING,MACHINE THREAD
5120-01-101-3874INTERCHANGEABLE
SCREWDRIVER,CROSS TIP
N-790
4820-01-146-1413INTERCHANGEABLE
BUSHING,VALVE SEAT
5330-01-229-2242INTERCHANGEABLE
GASKET

Frequently Asked Questions

What is NSN 4820-00-950-1781?

NSN 4820-00-950-1781 is a Diaphragm,valve,flat, manufactured by Grove Valve Operations, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-950-1781?

NSN 4820-00-950-1781 has 6 cross-referenced part numbers: N730PC4 (Grove Valve Operations), N-790 (Grove Valve Operations), N-656 PC 16 (Grove Valve Operations), 090-03008 (Grove Valve Operations), 82286 SPCLN (Grove Valve Operations) and 1 more.

What NSN replaces 4820-00-950-1781?

There are 10 known substitutes for 4820-00-950-1781: 2010-00-036-2716, 4810-00-878-0385, 4810-00-926-4241 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N730PC4?

Key specifications for N730PC4: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 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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