PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4780Valve Unit,discharge

Durabla Mfg Co · NSN 4320-00-602-3970 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-602-3970 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-602-3970. Primary manufacturer part number: 4780.
Features
  • Valve Unit,discharge — FSC 4320
  • General Characteristics Item Description: CRES O/A; 3.600 IN. OD; 5.725 IN. O/A LG; SPRING LOADED,ADJUSTABLE,ONE WAY FLOW IN
  • 3 verified cross-references
  • Primary manufacturer: Durabla Mfg Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve Unit,discharge, cataloged under National Stock Number 4320-00-602-3970, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Durabla Mfg Co. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-00-602-3970
Primary Part Number4780
Item NameValve Unit,discharge
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerDurabla Mfg Co
StatusACTIVE
General Characteristics Item DescriptionCRES O/A; 3.600 IN. OD; 5.725 IN. O/A LG; SPRING LOADED,ADJUSTABLE,ONE WAY FLOW IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
7025-00-280-07822748B INTERCHANGEABLE
Reader,punched Tape
Hewlett-Packard Company Dba HP
5905-00-483-746890J50R INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5935-00-763-75334780 INTERCHANGEABLE
Connector,plug,electrical
Hubbell Incorporated (delaware) Dba Wiring Device-Kellems Division
5905-00-842-2616 INTERCHANGEABLE
Resistor,fixed,wire Wound,induct
6680-01-131-2471A4780 INTERCHANGEABLE
Counter,electrical
Ai-Tek Instruments Llc Dba Ai-Tek Instruments Llc
5120-01-335-0758 INTERCHANGEABLE
Handle,socket Wrench
5330-01-498-52164780 INTERCHANGEABLE
Gasket
Amw Cuyuna Engine Co. Inc Dba Two Stroke International
6515-01-555-788010315 INTERCHANGEABLE
Cartridge,stunner,veterinary
Hantover, Inc.
Cross-Reference Index
Part NumberManufacturer
4780 PRIMARY Durabla Mfg Co (USA)
S316H642C Durabla Mfg Co (USA)
2748-B Durabla Mfg Co (USA)
Related Parts
7025-00-280-0782INTERCHANGEABLE
READER,PUNCHED TAPE
2748B
5905-00-483-7468INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
90J50R
5935-00-763-7533INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
4780
5905-00-842-2616INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,INDUCT
6680-01-131-2471INTERCHANGEABLE
COUNTER,ELECTRICAL
A4780
5120-01-335-0758INTERCHANGEABLE
HANDLE,SOCKET WRENCH
5330-01-498-5216INTERCHANGEABLE
GASKET
4780
6515-01-555-7880INTERCHANGEABLE
CARTRIDGE,STUNNER,VETERINARY
10315

Frequently Asked Questions

What is NSN 4320-00-602-3970?

NSN 4320-00-602-3970 is a Valve Unit,discharge, manufactured by Durabla Mfg Co, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-00-602-3970?

NSN 4320-00-602-3970 has 3 cross-referenced part numbers: 4780 (Durabla Mfg Co), S316H642C (Durabla Mfg Co), 2748-B (Durabla Mfg Co).

What NSN replaces 4320-00-602-3970?

There are 8 known substitutes for 4320-00-602-3970: 7025-00-280-0782, 5905-00-483-7468, 5935-00-763-7533 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4780?

Key specifications for 4780: General Characteristics Item Description: CRES O/A; 3.600 IN. OD; 5.725 IN. O/A LG; SPRING LOADED,ADJUSTABLE,ONE WAY FLOW IN; End Item Identification: WARREN 6X9X12 VERTICAL SINGLE FIRE AND BILGE PUMP. 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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