PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ASTM-F-439Reducer,pipe

American Society for Testing and Materials Dba Astm International · NSN 4730-01-280-4763 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-280-4763 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-280-4763. Primary manufacturer part number: ASTM-F-439.
Features
  • Reducer,pipe — FSC 4730
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: American Society for Testing and Materials Dba Astm International
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
General Description

The Reducer,pipe, cataloged under National Stock Number 4730-01-280-4763, 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 American Society for Testing and Materials Dba Astm International. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, 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
NSN4730-01-280-4763
Primary Part NumberASTM-F-439
Item NameReducer,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-052-3429801-007CPVC INTERCHANGEABLE
Tee,pipe
George Fischer Sloane, Inc.
4730-00-247-919013221E8311-8 INTERCHANGEABLE
Elbow,pipe
Cecom Lr Center
4730-00-476-585912341585 INTERCHANGEABLE
Coupling,pipe
U S Army Tank Automotive Command Amsta-Im-Mm
4730-00-495-26141837-249 INTERCHANGEABLE
Reducer,pipe
Nibco Inc Chemtrol Div
4730-00-497-720805027007 INTERCHANGEABLE
Coupling,pipe
Nibco Inc Chemtrol Div
4730-01-069-4954002120-040 INTERCHANGEABLE
Tee,pipe
Cleveland Service Center
4730-01-074-090605217012 INTERCHANGEABLE
Coupling,pipe
Nibco Inc Chemtrol Div
4730-01-140-115705001009 INTERCHANGEABLE
Elbow,pipe
Nibco Inc Chemtrol Div
4730-01-152-7049 INTERCHANGEABLE
Cap,pipe
4730-01-153-0323 INTERCHANGEABLE
Flange,pipe
Cross-Reference Index
Part NumberManufacturer
ASTM-F-439 American Society for Testing and Materials Dba Astm International (USA)
508-6280728PC1 Naval Sea Systems Command (USA)
Related Parts
4730-00-052-3429INTERCHANGEABLE
TEE,PIPE
801-007CPVC
4730-00-247-9190INTERCHANGEABLE
ELBOW,PIPE
13221E8311-8
4730-00-476-5859INTERCHANGEABLE
COUPLING,PIPE
12341585
4730-00-495-2614INTERCHANGEABLE
REDUCER,PIPE
1837-249
4730-00-497-7208INTERCHANGEABLE
COUPLING,PIPE
05027007
4730-01-069-4954INTERCHANGEABLE
TEE,PIPE
002120-040
4730-01-074-0906INTERCHANGEABLE
COUPLING,PIPE
05217012
4730-01-140-1157INTERCHANGEABLE
ELBOW,PIPE
05001009
4730-01-152-7049INTERCHANGEABLE
CAP,PIPE
4730-01-153-0323INTERCHANGEABLE
FLANGE,PIPE
4730-01-154-2075INTERCHANGEABLE
TEE,PIPE
4730-01-280-4768INTERCHANGEABLE
FLANGE,PIPE

Frequently Asked Questions

What is NSN 4730-01-280-4763?

NSN 4730-01-280-4763 is a Reducer,pipe, manufactured by American Society for Testing and Materials Dba Astm International, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-280-4763?

NSN 4730-01-280-4763 has 2 cross-referenced part numbers: ASTM-F-439 (American Society for Testing and Materials Dba Astm International), 508-6280728PC1 (Naval Sea Systems Command).

What NSN replaces 4730-01-280-4763?

There are 12 known substitutes for 4730-01-280-4763: 4730-00-052-3429, 4730-00-247-9190, 4730-00-476-5859 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ASTM-F-439?

Key specifications for ASTM-F-439: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com