PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ED8980Union,pipe

Mobile Drilling Company Inc Dba Foremost-Mobile · NSN 4730-00-277-5501 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-277-5501 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-277-5501. Primary manufacturer part number: ED8980.
Features
  • Union,pipe — FSC 4730
  • Material: IRON OVERALL
  • Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE
  • Nominal Overall Length: 1.625 INCHES IN
  • Surface Treatment: CADMIUM OVERALL
  • Material Document and Classification: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: NPT FIRST END
  • Connection Style: PLAIN (PIPE) SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Overall construction
General Description

The Union,pipe, cataloged under National Stock Number 4730-00-277-5501, 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 Mobile Drilling Company Inc Dba Foremost-Mobile. Government technical data includes 18 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-00-277-5501
Primary Part NumberED8980
Item NameUnion,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMobile Drilling Company Inc Dba Foremost-Mobile
StatusACTIVE
MaterialIRON OVERALL
Media for Which DesignedWATER-OIL-GAS SINGLE RESPONSE
Nominal Overall Length1.625 INCHES IN
Surface TreatmentCADMIUM OVERALL
Material Document and ClassificationASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorNPT FIRST END
Connection StylePLAIN (PIPE) SECOND END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Maximum Operating Temp37.8 CELSIUS SINGLE RESPONSE DEGC
Nominal Thread Size0.250 INCHES SECOND END IN
Seat TypeBEVELED
Connection TypeTHREADED INTERNAL PIPE SECOND END
Connection StylePLAIN (PIPE) FIRST END
Nominal Pipe Size Accommodated0.250 INCHES SECOND END IN
Nominal Thread Size0.250 INCHES FIRST END IN
Nominal Pipe Size Accommodated0.250 INCHES FIRST END IN
Operating Pressure20000.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Thread Series DesignatorNPT SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4730-00-277-5505250H3-4IN INTERCHANGEABLE
Union,pipe
Crane Co Div Valve Div
6625-00-543-948125A INTERCHANGEABLE
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
6625-00-954-2784250H INTERCHANGEABLE
Detecting Element,directional Co
Bird Electronic Corporation Div Bird Electronic Corp
5360-01-129-0346250H INTERCHANGEABLE
Spring,helical,compression
Anderson Greenwood Lp Dba Anderson Greenwood Crosby
Cross-Reference Index
Part NumberManufacturer
ED8980 PRIMARY Mobile Drilling Company Inc Dba Foremost-Mobile (USA)
250H PRIMARY Crane Co Div Valve Div (USA)
Related Parts
4730-00-277-5505INTERCHANGEABLE
UNION,PIPE
250H3-4IN
6625-00-543-9481INTERCHANGEABLE
DETECTING ELEMENT,DIRECTIONAL CO
25A
6625-00-954-2784INTERCHANGEABLE
DETECTING ELEMENT,DIRECTIONAL CO
250H
5360-01-129-0346INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
250H

Frequently Asked Questions

What is NSN 4730-00-277-5501?

NSN 4730-00-277-5501 is a Union,pipe, manufactured by Mobile Drilling Company Inc Dba Foremost-Mobile, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-277-5501?

NSN 4730-00-277-5501 has 2 cross-referenced part numbers: ED8980 (Mobile Drilling Company Inc Dba Foremost-Mobile), 250H (Crane Co Div Valve Div).

What NSN replaces 4730-00-277-5501?

There are 4 known substitutes for 4730-00-277-5501: 4730-00-277-5505, 6625-00-543-9481, 6625-00-954-2784 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ED8980?

Key specifications for ED8980: Material: IRON OVERALL; Media for Which Designed: WATER-OIL-GAS SINGLE RESPONSE; Nominal Overall Length: 1.625 INCHES IN; Surface Treatment: CADMIUM OVERALL. 18 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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