PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILP18174Elbow,pipe

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-249-3948 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-249-3948 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-249-3948. Primary manufacturer part number: MILP18174.
Features
  • Elbow,pipe — FSC 4730
  • Nominal Thread Size: 0.750 INCHES ALL ENDS IN
  • Flow Angle: 45.0 DEGREES
  • Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
  • Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Nominal Pipe Size Accommodated: 0.750 INCHES ALL ENDS IN
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-00-249-3948, 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 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 7 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
NSN4730-00-249-3948
Primary Part NumberMILP18174
Item NameElbow,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Nominal Thread Size0.750 INCHES ALL ENDS IN
Flow Angle45.0 DEGREES
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Nominal Pipe Size Accommodated0.750 INCHES ALL ENDS IN
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Maximum Operating Temp37.8 CELSIUS SINGLE RESPONSE DEGC
Leg Length1.125 INCHES NOMINAL ALL ENDS IN
Connection StylePLAIN (PIPE) ALL ENDS
MaterialSTEEL OVERALL
Thread Series DesignatorNPT ALL ENDS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4730-00-014-6694 INTERCHANGEABLE
Bushing,pipe
5920-00-080-58273823-4 INTERCHANGEABLE
Fuseholder,block
Cooper Bussmann, Llc Dba Cooper Industries
4730-00-187-7570 INTERCHANGEABLE
Coupling,pipe
4730-00-187-7575 INTERCHANGEABLE
Coupling,pipe
4730-00-249-3945 INTERCHANGEABLE
Elbow,pipe
4730-00-249-3947 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
Cross-Reference Index
Part NumberManufacturer
MILP18174 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
BM11370-30 Demarkus Corp Refrigeration Engineering Corp (USA)
MS14303-5ATV Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
382 Crane Co Div Valve Div (USA)
4253-142-4 Consolidated Welding and Engineering Co (USA)
MS14303 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
980400 Terex Corp (USA)
MS14303-1E12 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
382-3-4 Crane Co Div Valve Div (USA)
ASME-B16.11 The American Society of Mechanical Engineers (USA)
BM11616-78 Demarkus Corp Refrigeration Engineering Corp (USA)
Related Parts
4730-00-014-6694INTERCHANGEABLE
BUSHING,PIPE
5920-00-080-5827INTERCHANGEABLE
FUSEHOLDER,BLOCK
3823-4
4730-00-187-7570INTERCHANGEABLE
COUPLING,PIPE
4730-00-187-7575INTERCHANGEABLE
COUPLING,PIPE
4730-00-249-3945INTERCHANGEABLE
ELBOW,PIPE
4730-00-249-3947INTERCHANGEABLE
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

Frequently Asked Questions

What is NSN 4730-00-249-3948?

NSN 4730-00-249-3948 is a Elbow,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: cancelled.

What are the part numbers for NSN 4730-00-249-3948?

NSN 4730-00-249-3948 has 11 cross-referenced part numbers: MILP18174 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), BM11370-30 (Demarkus Corp Refrigeration Engineering Corp), MS14303-5ATV (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 382 (Crane Co Div Valve Div), 4253-142-4 (Consolidated Welding and Engineering Co) and 6 more.

What NSN replaces 4730-00-249-3948?

There are 12 known substitutes for 4730-00-249-3948: 4730-00-014-6694, 5920-00-080-5827, 4730-00-187-7570 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MILP18174?

Key specifications for MILP18174: Nominal Thread Size: 0.750 INCHES ALL ENDS IN; Flow Angle: 45.0 DEGREES; Operating Pressure: 3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS; Nondefinitive Spec/std Data: 1 TYPE AND 2 CLASS. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-249-3948 still in active supply?

NSN 4730-00-249-3948 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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