PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS35923-5Reducer,tube

Nibco Inc · NSN 4730-00-264-9171 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-264-9171 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-264-9171. Primary manufacturer part number: MS35923-5.
Features
  • Reducer,tube — FSC 4730
  • 7 verified cross-references
  • Primary manufacturer: Nibco Inc
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Reducer,tube, cataloged under National Stock Number 4730-00-264-9171, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Nibco Inc. This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameReducer,tube
FSC / FSG4730 — No Item Name Available (FSG 47)
ManufacturersNibco Inc (CAGE 12168); Castle a M and Co (CAGE 77075); Federal Commercial Item Description Promulgated by General Services Administration Washington DC (CAGE 58536); Mueller Brass Co. (CAGE 41947); Imperial (CAGE 30327)
Technical Specifications
ParameterValue
NSN4730-00-264-9171
Primary Part NumberMS35923-5
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNibco Inc
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5310-00-185-6375 INTERCHANGEABLE
Nut,plain,round
6680-00-458-2295AN20 INTERCHANGEABLE
Transmitter,rate of Flow
Ametek Inc Schutte and Koerting Div
7690-01-300-5022 INTERCHANGEABLE
Label
6515-01-559-0649AN20 INTERCHANGEABLE
Tube,duodenal,surgical
Andersen Products, Inc.
Cross-Reference Index
Part NumberManufacturer
MS35923-5 Nibco Inc (USA)
AN20 Castle a M and Co (USA)
AA59447-5 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-59447 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
MS35923-5 Mueller Brass Co. (USA)
MS35923-5 Imperial (USA)
MS35923-5 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-185-6375INTERCHANGEABLE
NUT,PLAIN,ROUND
6680-00-458-2295INTERCHANGEABLE
TRANSMITTER,RATE OF FLOW
AN20
7690-01-300-5022INTERCHANGEABLE
LABEL
6515-01-559-0649INTERCHANGEABLE
TUBE,DUODENAL,SURGICAL
AN20

Frequently Asked Questions

What is NSN 4730-00-264-9171?

NSN 4730-00-264-9171 is a Reducer,tube, manufactured by Nibco Inc, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-264-9171?

NSN 4730-00-264-9171 has 7 cross-referenced part numbers: MS35923-5 (Nibco Inc), AN20 (Castle a M and Co), AA59447-5 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-59447 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), MS35923-5 (Mueller Brass Co.) and 2 more.

What NSN replaces 4730-00-264-9171?

There are 4 known substitutes for 4730-00-264-9171: 5310-00-185-6375, 6680-00-458-2295, 7690-01-300-5022 and 1 more. Verify interchangeability with system specifications before substitution.

Is NSN 4730-00-264-9171 still in active supply?

NSN 4730-00-264-9171 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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