PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS14303Elbow,pipe

Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-00-253-4428 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-253-4428 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-253-4428. Primary manufacturer part number: MS14303.
Features
  • Elbow,pipe — FSC 4730
  • Thread Series Designator: NPT ALL ENDS
  • Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Material: STEEL COMP 1035 OVERALL
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Nominal Pipe Size Accommodated: 0.500 INCHES ALL ENDS IN
  • Leg Length: 1.312 INCHES NOMINAL ALL ENDS IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Comp 1035 Overall construction
General Description

The Elbow,pipe, cataloged under National Stock Number 4730-00-253-4428, 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 Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-253-4428
Primary Part NumberMS14303
Item NameElbow,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Thread Series DesignatorNPT ALL ENDS
Material Document and Classification66 FED STD SINGLE MATERIAL RESPONSE OVERALL
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
MaterialSTEEL COMP 1035 OVERALL
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Nominal Pipe Size Accommodated0.500 INCHES ALL ENDS IN
Leg Length1.312 INCHES NOMINAL ALL ENDS IN
Maximum Operating Temp37.8 CELSIUS SINGLE RESPONSE DEGC
Connection StylePLAIN (PIPE) ALL ENDS
Operating Pressure3000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Nominal Thread Size0.600 INCHES ALL ENDS IN
Flow Angle90.0 DEGREES
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
4730-00-249-3949 INTERCHANGEABLE
Elbow,pipe
4730-00-253-4429 INTERCHANGEABLE
Elbow,pipe
Cross-Reference Index
Part NumberManufacturer
MS14303 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS14303-1J08 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS14303-4AQV 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)
MILP18174TYPE1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
380 Crane Co Div Valve Div (USA)
75460A Air Products & Chemicals, Inc (USA)
5740 1-2IN The Walworth Company (USA)
Related Parts
4730-00-249-3949INTERCHANGEABLE
ELBOW,PIPE
4730-00-253-4429INTERCHANGEABLE
ELBOW,PIPE

Frequently Asked Questions

What is NSN 4730-00-253-4428?

NSN 4730-00-253-4428 is a Elbow,pipe, manufactured by Military Standards Promulgated by Military Departments 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 4730-00-253-4428?

NSN 4730-00-253-4428 has 8 cross-referenced part numbers: MS14303 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS14303-1J08 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), MS14303-4AQV (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), ASME-B16.11 (The American Society of Mechanical Engineers), MILP18174TYPE1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 4730-00-253-4428?

There are 2 known substitutes for 4730-00-253-4428: 4730-00-249-3949, 4730-00-253-4429. Verify interchangeability with system specifications before substitution.

What are the specifications of MS14303?

Key specifications for MS14303: Thread Series Designator: NPT ALL ENDS; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL; Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE; Material: STEEL COMP 1035 OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-253-4428 still in active supply?

NSN 4730-00-253-4428 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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