PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILF1184Plug,pipe

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-187-4230 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-187-4230 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-187-4230. Primary manufacturer part number: MILF1184.
Features
  • Plug,pipe — FSC 4730
  • Material: COPPER OVERALL
  • Connection Style: PLAIN
  • Drive End Style: RAISED SQUARE
  • Nominal Thread Size: 1.250 INCHES EXTERNAL IN
  • Body Type: CORED
  • Head Type: CORED
  • Thread Series Designator: NPT EXTERNAL
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Overall construction
General Description

The Plug,pipe, cataloged under National Stock Number 4730-00-187-4230, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 9 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-187-4230
Primary Part NumberMILF1184
Item NamePlug,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
MaterialCOPPER OVERALL
Connection StylePLAIN
Drive End StyleRAISED SQUARE
Nominal Thread Size1.250 INCHES EXTERNAL IN
Body TypeCORED
Head TypeCORED
Thread Series DesignatorNPT EXTERNAL
Nominal Pipe Size for Which Designed1.250 INCHES IN
Thread DirectionRIGHT-HAND EXTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
4730-00-011-31750901782-3 INTERCHANGEABLE
Plug,pipe
Kalmar AC Inc
4730-00-187-4232 INTERCHANGEABLE
Plug,pipe
4730-00-187-4235 INTERCHANGEABLE
Plug,pipe
4730-00-277-8632 INTERCHANGEABLE
Plug,pipe
4730-00-541-7686267639PC9 INTERCHANGEABLE
Plug,pipe
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Cross-Reference Index
Part NumberManufacturer
MILF1184 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
BRASSPLUGPIPE Crane Co Div Valve Div (USA)
Related Parts
4730-00-011-3175INTERCHANGEABLE
PLUG,PIPE
0901782-3
4730-00-187-4232INTERCHANGEABLE
PLUG,PIPE
4730-00-187-4235INTERCHANGEABLE
PLUG,PIPE
4730-00-277-8632INTERCHANGEABLE
PLUG,PIPE
4730-00-541-7686INTERCHANGEABLE
PLUG,PIPE
267639PC9

Frequently Asked Questions

What is NSN 4730-00-187-4230?

NSN 4730-00-187-4230 is a Plug,pipe, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-187-4230?

NSN 4730-00-187-4230 has 2 cross-referenced part numbers: MILF1184 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), BRASSPLUGPIPE (Crane Co Div Valve Div).

What NSN replaces 4730-00-187-4230?

There are 5 known substitutes for 4730-00-187-4230: 4730-00-011-3175, 4730-00-187-4232, 4730-00-187-4235 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILF1184?

Key specifications for MILF1184: Material: COPPER OVERALL; Connection Style: PLAIN; Drive End Style: RAISED SQUARE; Nominal Thread Size: 1.250 INCHES EXTERNAL IN. 9 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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