PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILP18174Elbow,pipe

Esco Inc · NSN 4730-00-249-3947 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-249-3947 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-249-3947. Primary manufacturer part number: MILP18174.
Features
  • Elbow,pipe — FSC 4730
  • Nominal Thread Size: 0.500 INCHES ALL ENDS IN
  • Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Thread Series Designator: NPT ALL ENDS
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Flow Angle: 45.0 DEGREES
  • Maximum Operating Temp: 100.0 FAHRENHEIT SINGLE RESPONSE DEGF
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-00-249-3947, 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 Esco Inc. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 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
NSN4730-00-249-3947
Primary Part NumberMILP18174
Item NameElbow,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerEsco Inc
StatusACTIVE
Nominal Thread Size0.500 INCHES ALL ENDS IN
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorNPT ALL ENDS
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Flow Angle45.0 DEGREES
Maximum Operating Temp100.0 FAHRENHEIT SINGLE RESPONSE DEGF
Leg Length0.980 INCHES MINIMUM AND 1.020 INCHES MAXIMUM ALL ENDS IN
Nominal Pipe Size Accommodated0.500 INCHES ALL ENDS IN
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDS
MaterialSTEEL OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
4730-00-014-6694 INTERCHANGEABLE
Bushing,pipe
4730-00-187-7570 INTERCHANGEABLE
Coupling,pipe
4730-00-187-7575 INTERCHANGEABLE
Coupling,pipe
4730-00-249-3945 INTERCHANGEABLE
Elbow,pipe
4730-00-249-3948 INTERCHANGEABLE
Elbow,pipe
4730-00-249-3950 INTERCHANGEABLE
Elbow,pipe
4730-00-249-3951 INTERCHANGEABLE
Elbow,pipe
4730-00-249-3952 INTERCHANGEABLE
Elbow,pipe
4730-00-253-4426 INTERCHANGEABLE
Elbow,pipe
4730-00-253-4427 INTERCHANGEABLE
Elbow,pipe
Cross-Reference Index
Part NumberManufacturer
MILP18174 Esco Inc (USA)
MS14303 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS14303-4ATV Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MILP18174 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS14303-1E08 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
ASME-B16.11 The American Society of Mechanical Engineers (USA)
Related Parts
4730-00-014-6694INTERCHANGEABLE
BUSHING,PIPE
4730-00-187-7570INTERCHANGEABLE
COUPLING,PIPE
4730-00-187-7575INTERCHANGEABLE
COUPLING,PIPE
4730-00-249-3945INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-3948INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-3950INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-3951INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-3952INTERCHANGEABLE
ELBOW,PIPE
4730-00-253-4426INTERCHANGEABLE
ELBOW,PIPE
4730-00-253-4427INTERCHANGEABLE
ELBOW,PIPE
4730-00-253-4430INTERCHANGEABLE
ELBOW,PIPE
4730-00-253-4431INTERCHANGEABLE
ELBOW,PIPE

Frequently Asked Questions

What is NSN 4730-00-249-3947?

NSN 4730-00-249-3947 is a Elbow,pipe, manufactured by Esco Inc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-249-3947?

NSN 4730-00-249-3947 has 6 cross-referenced part numbers: MILP18174 (Esco Inc), MS14303 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS14303-4ATV (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MILP18174 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS14303-1E08 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 4730-00-249-3947?

There are 12 known substitutes for 4730-00-249-3947: 4730-00-014-6694, 4730-00-187-7570, 4730-00-187-7575 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILP18174?

Key specifications for MILP18174: Nominal Thread Size: 0.500 INCHES ALL ENDS IN; Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Thread Series Designator: NPT ALL ENDS. 12 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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