PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

X31913PC11Diaphragm,valve,flat

Spx Flow Us, Llc Dba Spx Valves & Controls · NSN 4820-00-773-6914 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-773-6914 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-773-6914. Primary manufacturer part number: X31913PC11.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Material Thickness: 0.115 INCHES NOMINAL IN
  • Style Designator: FLAT
  • Outside Diameter: 6.400 INCHES NOMINAL IN
  • Material: RUBBER SYNTHETIC
  • Center Hole Diameter: 0.500 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Spx Flow Us, Llc Dba Spx Valves & Controls
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Rubber Synthetic construction
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-773-6914, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Spx Flow Us, Llc Dba Spx Valves & Controls. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-773-6914
Primary Part NumberX31913PC11
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSpx Flow Us, Llc Dba Spx Valves & Controls
StatusCANCELLED
Material Thickness0.115 INCHES NOMINAL IN
Style DesignatorFLAT
Outside Diameter6.400 INCHES NOMINAL IN
MaterialRUBBER SYNTHETIC
Center Hole Diameter0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
5355-00-133-2104109080 INTERCHANGEABLE
Pointer,dial
Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace
5360-00-209-8113212A1004 INTERCHANGEABLE
Spring,spiral,torsion
Cummins Power Generation Inc.
5930-00-239-366811A406A INTERCHANGEABLE
Switch,push
Fwd Seagrave Holdings Lp
3040-01-039-3501108341-1 INTERCHANGEABLE
Connecting Link,rigid
L3harris Technologies, Inc. Div Space and Airborne Systems
5331-01-085-1676109080 INTERCHANGEABLE
O-Ring
Cummins Inc.
4935-01-216-8340 INTERCHANGEABLE
Fixture,guided Missile Maintenan
Cross-Reference Index
Part NumberManufacturer
X31913PC11 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
X72329PC11 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
108341 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
109080 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
Related Parts
5355-00-133-2104INTERCHANGEABLE
POINTER,DIAL
109080
5360-00-209-8113INTERCHANGEABLE
SPRING,SPIRAL,TORSION
212A1004
5930-00-239-3668INTERCHANGEABLE
SWITCH,PUSH
11A406A
3040-01-039-3501INTERCHANGEABLE
CONNECTING LINK,RIGID
108341-1
5331-01-085-1676INTERCHANGEABLE
O-RING
109080
4935-01-216-8340INTERCHANGEABLE
FIXTURE,GUIDED MISSILE MAINTENAN

Frequently Asked Questions

What is NSN 4820-00-773-6914?

NSN 4820-00-773-6914 is a Diaphragm,valve,flat, manufactured by Spx Flow Us, Llc Dba Spx Valves & Controls, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-773-6914?

NSN 4820-00-773-6914 has 4 cross-referenced part numbers: X31913PC11 (Spx Flow Us, Llc Dba Spx Valves & Controls), X72329PC11 (Spx Flow Us, Llc Dba Spx Valves & Controls), 108341 (Spx Flow Us, Llc Dba Spx Valves & Controls), 109080 (Spx Flow Us, Llc Dba Spx Valves & Controls).

What NSN replaces 4820-00-773-6914?

There are 6 known substitutes for 4820-00-773-6914: 5355-00-133-2104, 5360-00-209-8113, 5930-00-239-3668 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of X31913PC11?

Key specifications for X31913PC11: Material Thickness: 0.115 INCHES NOMINAL IN; Style Designator: FLAT; Outside Diameter: 6.400 INCHES NOMINAL IN; Material: RUBBER SYNTHETIC. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-773-6914 still in active supply?

NSN 4820-00-773-6914 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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