PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

YG-30Valve Assembly,pump

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4320-01-173-4646 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-173-4646 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-173-4646. Primary manufacturer part number: YG-30.
Features
  • Valve Assembly,pump — FSC 4320
  • General Characteristics Item Description: STEEL VALVE ROD LINK 1; BRONZE VALVE ROD LINK BUSHING 1; STEEL 0.500 IN. COLLAR 2; STEEL 0.500 IN. SPLIT NUT 2; STEEL 0.250 IN. BY 0.500 IN. SQUARE HEAD ROD POINT SET SCREW 29; STEEL 0.250 IN. BY 0.500 IN. DOG POINT HEADLESS SET SCREW 2 IN
  • 4 verified cross-references
  • Primary manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
Applications
  • Fluid transfer and circulation
  • Cooling system maintenance
  • Industrial process pumping
  • Flow control in piping systems
  • Pressure regulation
General Description

The Valve Assembly,pump, cataloged under National Stock Number 4320-01-173-4646, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 1 verified specification, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-173-4646
Primary Part NumberYG-30
Item NameValve Assembly,pump
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
General Characteristics Item DescriptionSTEEL VALVE ROD LINK 1; BRONZE VALVE ROD LINK BUSHING 1; STEEL 0.500 IN. COLLAR 2; STEEL 0.500 IN. SPLIT NUT 2; STEEL 0.250 IN. BY 0.500 IN. SQUARE HEAD ROD POINT SET SCREW 29; STEEL 0.250 IN. BY 0.500 IN. DOG POINT HEADLESS SET SCREW 2 IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
4320-01-171-7359WL-28 INTERCHANGEABLE
Connecting Rod,piston
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-173-4191VR-22 INTERCHANGEABLE
Piston Follower,pump
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-173-4192VU-8 INTERCHANGEABLE
Piston Follower,pump
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-173-4647UF-6 INTERCHANGEABLE
Lever Assembly,pump
Circor Naval Solutions Llc Dba Warren Pumps
4820-01-173-8362BS8-2326-117 INTERCHANGEABLE
Seat,valve
Euramco Safety Inc
4320-01-174-1431UA-18 INTERCHANGEABLE
Cylinder Sleeve
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-174-1434SA-47 INTERCHANGEABLE
Connecting Rod,piston
Circor Naval Solutions Llc Dba Warren Pumps
4320-01-174-1435SB-34 INTERCHANGEABLE
Connecting Rod,piston
Circor Naval Solutions Llc Dba Warren Pumps
4810-01-209-2350BS8-2326-116/118 INTERCHANGEABLE
Stem,fluid Valve
Euramco Safety Inc
4320-01-211-5578BS8-2326-104 INTERCHANGEABLE
Cylinder Sleeve
Euramco Safety Inc
Cross-Reference Index
Part NumberManufacturer
BS8-2326 PIECE 74 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS8-2326 Circor Naval Solutions Llc Dba Warren Pumps (USA)
YG-30 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
VG-30 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
4320-01-171-7359INTERCHANGEABLE
CONNECTING ROD,PISTON
WL-28
4320-01-173-4191INTERCHANGEABLE
PISTON FOLLOWER,PUMP
VR-22
4320-01-173-4192INTERCHANGEABLE
PISTON FOLLOWER,PUMP
VU-8
4320-01-173-4647INTERCHANGEABLE
LEVER ASSEMBLY,PUMP
UF-6
4820-01-173-8362INTERCHANGEABLE
SEAT,VALVE
BS8-2326-117
4320-01-174-1431INTERCHANGEABLE
CYLINDER SLEEVE
UA-18
4320-01-174-1434INTERCHANGEABLE
CONNECTING ROD,PISTON
SA-47
4320-01-174-1435INTERCHANGEABLE
CONNECTING ROD,PISTON
SB-34
4810-01-209-2350INTERCHANGEABLE
STEM,FLUID VALVE
BS8-2326-116/118
4320-01-211-5578INTERCHANGEABLE
CYLINDER SLEEVE
BS8-2326-104

Frequently Asked Questions

What is NSN 4320-01-173-4646?

NSN 4320-01-173-4646 is a Valve Assembly,pump, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-173-4646?

NSN 4320-01-173-4646 has 4 cross-referenced part numbers: BS8-2326 PIECE 74 (Circor Naval Solutions Llc Dba Warren Pumps), BS8-2326 (Circor Naval Solutions Llc Dba Warren Pumps), YG-30 (Circor Naval Solutions Llc Dba Warren Pumps), VG-30 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4320-01-173-4646?

There are 10 known substitutes for 4320-01-173-4646: 4320-01-171-7359, 4320-01-173-4191, 4320-01-173-4192 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of YG-30?

Key specifications for YG-30: General Characteristics Item Description: STEEL VALVE ROD LINK 1; BRONZE VALVE ROD LINK BUSHING 1; STEEL 0.500 IN. COLLAR 2; STEEL 0.500 IN. SPLIT NUT 2; STEEL 0.250 IN. BY 0.500 IN. SQUARE HEAD ROD POINT SET SCREW 29; STEEL 0.250 IN. BY 0.500 IN. DOG POINT HEADLESS SET SCREW 2 IN; End Item Identification: WARREN PUMPS MODEL 7X7X12 RECIPROCATING 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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