PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-2802Flange,pipe

Mueller Brass Co. · NSN 4730-01-178-9713 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-178-9713 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-178-9713. Primary manufacturer part number: A-2802.
Features
  • Flange,pipe — FSC 4730
  • Socket Diameter: 3.130 INCHES NOMINAL IN
  • Style Designator: ROUND, ONE BOLT HOLE CIRCLE
  • Material: COPPER ALLOY
  • Nominal Pipe Size for Which Designed: 3.000 INCHES IN
  • Flange Diameter: 7.500 INCHES NOMINAL IN
  • Bolt Circle Diameter: 6.000 INCHES NOMINAL IN
  • Socket Depth: 1.656 INCHES NOMINAL IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy construction
General Description

The Flange,pipe, cataloged under National Stock Number 4730-01-178-9713, 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 Mueller Brass Co.. Government technical data includes 11 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-178-9713
Primary Part NumberA-2802
Item NameFlange,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMueller Brass Co.
StatusACTIVE
Socket Diameter3.130 INCHES NOMINAL IN
Style DesignatorROUND, ONE BOLT HOLE CIRCLE
MaterialCOPPER ALLOY
Nominal Pipe Size for Which Designed3.000 INCHES IN
Flange Diameter7.500 INCHES NOMINAL IN
Bolt Circle Diameter6.000 INCHES NOMINAL IN
Socket Depth1.656 INCHES NOMINAL IN
Flange Section StylePLAIN FACE, SOCKET NECK
Face Seating Surface ConditionGROUND
Bolt Hole Quantity4
Bolt Hole Diameter0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5961-00-911-3461 INTERCHANGEABLE
Retainer,semiconductor Device
Cross-Reference Index
Part NumberManufacturer
A-2802 Mueller Brass Co. (USA)
4429K558 Mcmaster-Carr Supply Co (USA)
Related Parts
5961-00-911-3461INTERCHANGEABLE
RETAINER,SEMICONDUCTOR DEVICE

Frequently Asked Questions

What is NSN 4730-01-178-9713?

NSN 4730-01-178-9713 is a Flange,pipe, manufactured by Mueller Brass Co., classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-178-9713?

NSN 4730-01-178-9713 has 2 cross-referenced part numbers: A-2802 (Mueller Brass Co.), 4429K558 (Mcmaster-Carr Supply Co).

What NSN replaces 4730-01-178-9713?

There is 1 known substitute for 4730-01-178-9713: 5961-00-911-3461. Verify interchangeability with system specifications before substitution.

What are the specifications of A-2802?

Key specifications for A-2802: Socket Diameter: 3.130 INCHES NOMINAL IN; Style Designator: ROUND, ONE BOLT HOLE CIRCLE; Material: COPPER ALLOY; Nominal Pipe Size for Which Designed: 3.000 INCHES IN. 11 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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