PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

134-9Diaphragm,regulator

Dockson Corporation · NSN 4820-00-357-9339 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-357-9339 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-357-9339. Primary manufacturer part number: 134-9.
Features
  • Diaphragm,regulator — FSC 4820
  • 2 verified cross-references
  • Primary manufacturer: Dockson Corporation
Applications
  • Flow control in piping systems
  • Water treatment infrastructure
  • Industrial process control
General Description

The Diaphragm,regulator, cataloged under National Stock Number 4820-00-357-9339, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Dockson Corporation. This item has 2 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
NSN4820-00-357-9339
Primary Part Number134-9
Item NameDiaphragm,regulator
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerDockson Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6625-00-107-810110155 INTERCHANGEABLE
Voltmeter
Simpson Electric Company, Inc.
5365-00-271-73901349 INTERCHANGEABLE
Shim
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
4320-00-339-24151349 INTERCHANGEABLE
Impeller,pump,centrifugal
Curtiss-Wright Electro-Mechanical Corporation Div Epd
3110-00-413-74631349 INTERCHANGEABLE
Retainer
Lockheed Martin Corporation Div Rms - Mitchel Field
5310-00-462-4569808020 INTERCHANGEABLE
Washer,flat
Ldi Industries, Inc. Dba Ldi Industries Inc
2805-00-516-7219140136 INTERCHANGEABLE
Valve,poppet,engine
Dresser, Llc
3040-00-536-9698 INTERCHANGEABLE
Lining,friction
5815-00-976-1219 INTERCHANGEABLE
Retainer
5310-01-085-0985 INTERCHANGEABLE
Nut,plain,hexagon
4310-01-135-5569104798 INTERCHANGEABLE
Vacuum Pump Unit,rotary
Lockheed Martin Corp Electronics and Missiles Div
Cross-Reference Index
Part NumberManufacturer
34-9 Dockson Corporation (USA)
134-9 PRIMARY Dockson Corporation (USA)
Related Parts
6625-00-107-8101INTERCHANGEABLE
VOLTMETER
10155
5365-00-271-7390INTERCHANGEABLE
SHIM
1349
4320-00-339-2415INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
1349
3110-00-413-7463INTERCHANGEABLE
RETAINER
1349
5310-00-462-4569INTERCHANGEABLE
WASHER,FLAT
808020
2805-00-516-7219INTERCHANGEABLE
VALVE,POPPET,ENGINE
140136
3040-00-536-9698INTERCHANGEABLE
LINING,FRICTION
5815-00-976-1219INTERCHANGEABLE
RETAINER
5310-01-085-0985INTERCHANGEABLE
NUT,PLAIN,HEXAGON
4310-01-135-5569INTERCHANGEABLE
VACUUM PUMP UNIT,ROTARY
104798
5305-01-175-3589INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
1349
5910-01-210-5322INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR

Frequently Asked Questions

What is NSN 4820-00-357-9339?

NSN 4820-00-357-9339 is a Diaphragm,regulator, manufactured by Dockson Corporation, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-357-9339?

NSN 4820-00-357-9339 has 2 cross-referenced part numbers: 34-9 (Dockson Corporation), 134-9 (Dockson Corporation).

What NSN replaces 4820-00-357-9339?

There are 12 known substitutes for 4820-00-357-9339: 6625-00-107-8101, 5365-00-271-7390, 4320-00-339-2415 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 134-9?

Key specifications for 134-9: End Item Identification: DOCKSON MODEL 134 REGULATOR. 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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