PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AA59477-1Reducer,tube

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 4730-00-278-6136 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-278-6136 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-278-6136. Primary manufacturer part number: AA59477-1.
Features
  • Reducer,tube — FSC 4730
  • Connection Style: SOCKET (TUBE) ALL ENDS
  • Nominal Overall Length: 0.125 INCHES IN
  • Nominal Outside Diameter Tube Accommodated: 0.375 INCHES FIRST END IN
  • Tubing Wall Nominal Thickness for Which Designed: 0.026 INCHES FIRST END IN
  • Material Document and Classification: ASTM B88-66 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES SECOND END IN
  • Tubing Wall Nominal Thickness for Which Designed: 0.022 INCHES SECOND END IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-00-278-6136, 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 Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-278-6136
Primary Part NumberAA59477-1
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusCANCELLED
Connection StyleSOCKET (TUBE) ALL ENDS
Nominal Overall Length0.125 INCHES IN
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Tubing Wall Nominal Thickness for Which Designed0.026 INCHES FIRST END IN
Material Document and ClassificationASTM B88-66 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Nominal Outside Diameter Tube Accommodated0.250 INCHES SECOND END IN
Tubing Wall Nominal Thickness for Which Designed0.022 INCHES SECOND END IN
MaterialCOPPER ALLOY OVERALL
Specification/standard Data96906-MS35923 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
Reducer TypeCONCENTRIC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
6640-00-176-5245 INTERCHANGEABLE
Pipetting Machine,semi-Automatic
5310-00-185-6344 INTERCHANGEABLE
Nut,plain,round
3020-00-192-679940A1S4 INTERCHANGEABLE
Link,roller Chain
Jeffrey Chain L.p.
5930-00-419-7328010-1802 INTERCHANGEABLE
Switch,thermostatic
Ranco Inc Ranco Controls Div
4730-00-950-3590 INTERCHANGEABLE
Reducer,tube
4730-00-950-3592 INTERCHANGEABLE
Reducer,tube
5340-01-161-6112401R INTERCHANGEABLE
Latch Set,rim
Southern Folger Detention Equipment Company, Llc
6140-01-284-6351A19460-1 INTERCHANGEABLE
Battery Assembly
Power-Sonic Corporation
4820-01-432-5974 INTERCHANGEABLE
Cap,valve
Cross-Reference Index
Part NumberManufacturer
AA59477-1 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
401R Kennecott Corp Chase Extrusions Div (USA)
A19460-1 Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies (USA)
A1375 Mueller Brass Co. (USA)
A-A-59477 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)
AA59447-1 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
W1011 Mueller Brass Co. (USA)
AN15 Castle a M and Co (USA)
MS35923-1 Mindeco Corp (USA)
MS35923-1 Allied Plumbing Sales Co Inc (USA)
MS35923-1 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
6640-00-176-5245INTERCHANGEABLE
PIPETTING MACHINE,SEMI-AUTOMATIC
5310-00-185-6344INTERCHANGEABLE
NUT,PLAIN,ROUND
3020-00-192-6799INTERCHANGEABLE
LINK,ROLLER CHAIN
40A1S4
5930-00-419-7328INTERCHANGEABLE
SWITCH,THERMOSTATIC
010-1802
4730-00-950-3590INTERCHANGEABLE
REDUCER,TUBE
4730-00-950-3592INTERCHANGEABLE
REDUCER,TUBE
5340-01-161-6112INTERCHANGEABLE
LATCH SET,RIM
401R
6140-01-284-6351INTERCHANGEABLE
BATTERY ASSEMBLY
A19460-1
4820-01-432-5974INTERCHANGEABLE
CAP,VALVE

Frequently Asked Questions

What is NSN 4730-00-278-6136?

NSN 4730-00-278-6136 is a Reducer,tube, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-278-6136?

NSN 4730-00-278-6136 has 12 cross-referenced part numbers: AA59477-1 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), 401R (Kennecott Corp Chase Extrusions Div), A19460-1 (Spx Corporation Dba Dielectric Communications Div Spx Communication Technologies), A1375 (Mueller Brass Co.), A-A-59477 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC) and 7 more.

What NSN replaces 4730-00-278-6136?

There are 9 known substitutes for 4730-00-278-6136: 6640-00-176-5245, 5310-00-185-6344, 3020-00-192-6799 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of AA59477-1?

Key specifications for AA59477-1: Connection Style: SOCKET (TUBE) ALL ENDS; Nominal Overall Length: 0.125 INCHES IN; Nominal Outside Diameter Tube Accommodated: 0.375 INCHES FIRST END IN; Tubing Wall Nominal Thickness for Which Designed: 0.026 INCHES FIRST END IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-278-6136 still in active supply?

NSN 4730-00-278-6136 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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