PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

45C729-1575Cap,pipe

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 4730-00-174-4579 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-174-4579 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-174-4579. Primary manufacturer part number: 45C729-1575.
Features
  • Cap,pipe — FSC 4730
  • Thread Direction: RIGHT-HAND INTERNAL
  • Nominal Pipe Size for Which Designed: 2.000 INCHES IN
  • Nominal Thread Size: 2.000 INCHES INTERNAL IN
  • Thread Series Designator: NPT INTERNAL
  • Material: STEEL OVERALL
  • Connection Style: PLAIN (OPTIONAL END)
  • Style Designator: CAP
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Cap,pipe, cataloged under National Stock Number 4730-00-174-4579, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-174-4579
Primary Part Number45C729-1575
Item NameCap,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusCANCELLED
Thread DirectionRIGHT-HAND INTERNAL
Nominal Pipe Size for Which Designed2.000 INCHES IN
Nominal Thread Size2.000 INCHES INTERNAL IN
Thread Series DesignatorNPT INTERNAL
MaterialSTEEL OVERALL
Connection StylePLAIN (OPTIONAL END)
Style DesignatorCAP
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
6240-00-155-8706 INTERCHANGEABLE
Lamp,incandescent
4730-00-278-876460C-5 INTERCHANGEABLE
Sleeve,compression,tube-Hose Fit
Parker-Hannifin Corp Div Fluid System Connector Division
1630-00-347-02914208 INTERCHANGEABLE
Arm Assy,brake Valv
Avox Systems Inc Dba Avox Systems Inc
5930-00-448-747540208-00 INTERCHANGEABLE
Switch,rotary
Taylor Made Environmental
6520-00-547-50104208 INTERCHANGEABLE
Wheel,abrasive
Dedeco International Sales, Inc.
3110-00-554-564800013C INTERCHANGEABLE
Bearing,ball,annular
Hyster-Yale Group, Inc. Dba Yale Materials Handling
5950-00-617-4383SM-B-157965 INTERCHANGEABLE
Transformer,radio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5985-01-097-20444208 INTERCHANGEABLE
Attenuator,fixed
Smiths Interconnect Americas, Inc.
6145-01-224-208188723 INTERCHANGEABLE
Cable,special Purpose,electrical
Belden Wire & Cable Company Llc Dba Belden Cdt Electronics Division
5985-01-412-8377AV-22 INTERCHANGEABLE
Antenna
R. a. Miller Industries, Inc. Dba R a Miller Industries Inc
Cross-Reference Index
Part NumberManufacturer
45C729-1575 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
389 2IN PRIMARY Crane Co Div Valve Div (USA)
4208 Flowserve Inc (USA)
Related Parts
6240-00-155-8706INTERCHANGEABLE
LAMP,INCANDESCENT
4730-00-278-8764INTERCHANGEABLE
SLEEVE,COMPRESSION,TUBE-HOSE FIT
60C-5
1630-00-347-0291INTERCHANGEABLE
ARM ASSY,BRAKE VALV
4208
5930-00-448-7475INTERCHANGEABLE
SWITCH,ROTARY
40208-00
6520-00-547-5010INTERCHANGEABLE
WHEEL,ABRASIVE
4208
3110-00-554-5648INTERCHANGEABLE
BEARING,BALL,ANNULAR
00013C
5950-00-617-4383INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
SM-B-157965
5985-01-097-2044INTERCHANGEABLE
ATTENUATOR,FIXED
4208
6145-01-224-2081INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
88723
5985-01-412-8377INTERCHANGEABLE
ANTENNA
AV-22
5985-01-437-7305INTERCHANGEABLE
ANTENNA ELEMENT
4208
6350-01-596-3188INTERCHANGEABLE
EXPANSION MODULE,ZONE,CONTROL-CO
4208

Frequently Asked Questions

What is NSN 4730-00-174-4579?

NSN 4730-00-174-4579 is a Cap,pipe, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-174-4579?

NSN 4730-00-174-4579 has 3 cross-referenced part numbers: 45C729-1575 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 389 2IN (Crane Co Div Valve Div), 4208 (Flowserve Inc).

What NSN replaces 4730-00-174-4579?

There are 12 known substitutes for 4730-00-174-4579: 6240-00-155-8706, 4730-00-278-8764, 1630-00-347-0291 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 45C729-1575?

Key specifications for 45C729-1575: Thread Direction: RIGHT-HAND INTERNAL; Nominal Pipe Size for Which Designed: 2.000 INCHES IN; Nominal Thread Size: 2.000 INCHES INTERNAL IN; Thread Series Designator: NPT INTERNAL. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-174-4579 still in active supply?

NSN 4730-00-174-4579 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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