PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

STD-251-1Adapter,straight,flange to Pipe

Container Research Corp Dba Container Research Corp Div Containr Research Corporation · NSN 4730-01-515-8531 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-515-8531 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-515-8531. Primary manufacturer part number: STD-251-1.
Features
  • Adapter,straight,flange to Pipe — FSC 4730
  • Nominal Overall Length: 0.500 INCHES IN
  • Material Document and Classification: ASTM B209 6061-T651 FED STD SINGLE MATERIAL RESPONSE OVERALL
  • Connection Style: PLAIN (PIPE) FIRST END
  • Pipe Wall Thickness Designation for Which Designed: SCHEDULE STD SECOND END
  • Connection Style: PLAIN (PIPE) SECOND END
  • Connection Type: BUTT WELD PIPE SECOND END
  • Connection Type: THREADED INTERNAL PIPE FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Aluminum Alloy 6061 Overall construction
General Description

The Adapter,straight,flange to Pipe, cataloged under National Stock Number 4730-01-515-8531, 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 Container Research Corp Dba Container Research Corp Div Containr Research Corporation. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-515-8531
Primary Part NumberSTD-251-1
Item NameAdapter,straight,flange to Pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerContainer Research Corp Dba Container Research Corp Div Containr Research Corporation
StatusACTIVE
Nominal Overall Length0.500 INCHES IN
Material Document and ClassificationASTM B209 6061-T651 FED STD SINGLE MATERIAL RESPONSE OVERALL
Connection StylePLAIN (PIPE) FIRST END
Pipe Wall Thickness Designation for Which DesignedSCHEDULE STD SECOND END
Connection StylePLAIN (PIPE) SECOND END
Connection TypeBUTT WELD PIPE SECOND END
Connection TypeTHREADED INTERNAL PIPE FIRST END
Pipe Wall Thickness Designation for Which DesignedSCHEDULE STD FIRST END
Nominal Pipe Size Accommodated0.750 INCHES SECOND END IN
Thread Series DesignatorNPT FIRST END
MaterialALUMINUM ALLOY 6061 OVERALL
Nominal Thread Size0.750 INCHES FIRST END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-00-209-12182239HX INTERCHANGEABLE
Washer,lock
Oshkosh Defense Llc
Cross-Reference Index
Part NumberManufacturer
STD-251-1 PRIMARY Container Research Corp Dba Container Research Corp Div Containr Research Corporation (USA)
STD-251 Container Research Corp Dba Container Research Corp Div Containr Research Corporation (USA)
Related Parts
5310-00-209-1218INTERCHANGEABLE
WASHER,LOCK
2239HX

Frequently Asked Questions

What is NSN 4730-01-515-8531?

NSN 4730-01-515-8531 is a Adapter,straight,flange to Pipe, manufactured by Container Research Corp Dba Container Research Corp Div Containr Research Corporation, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-515-8531?

NSN 4730-01-515-8531 has 2 cross-referenced part numbers: STD-251-1 (Container Research Corp Dba Container Research Corp Div Containr Research Corporation), STD-251 (Container Research Corp Dba Container Research Corp Div Containr Research Corporation).

What NSN replaces 4730-01-515-8531?

There is 1 known substitute for 4730-01-515-8531: 5310-00-209-1218. Verify interchangeability with system specifications before substitution.

What are the specifications of STD-251-1?

Key specifications for STD-251-1: Nominal Overall Length: 0.500 INCHES IN; Material Document and Classification: ASTM B209 6061-T651 FED STD SINGLE MATERIAL RESPONSE OVERALL; Connection Style: PLAIN (PIPE) FIRST END; Pipe Wall Thickness Designation for Which Designed: SCHEDULE STD SECOND END. 15 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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