PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B687R-126BNipple,pipe

American Society for Testing and Materials Dba Astm International · NSN 4730-00-196-2021 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-196-2021 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-196-2021. Primary manufacturer part number: B687R-126B.
Features
  • Nipple,pipe — FSC 4730
  • Nominal Thread Size: 1.250 INCHES ALL ENDS IN
  • Specification/standard Data: 81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
  • Style Designator: LONG
  • Thread Series Designator: NPT ALL ENDS
  • Material Document and Classification: ASTM B43 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Thread Series Designator: NPT ALL ENDS
  • Connection Style: PLAIN (PIPE) ALL ENDS
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Nipple,pipe, cataloged under National Stock Number 4730-00-196-2021, 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 American Society for Testing and Materials Dba Astm International. Government technical data includes 16 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-196-2021
Primary Part NumberB687R-126B
Item NameNipple,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusCANCELLED
Nominal Thread Size1.250 INCHES ALL ENDS IN
Specification/standard Data81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
Style DesignatorLONG
Thread Series DesignatorNPT ALL ENDS
Material Document and ClassificationASTM B43 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Thread Series DesignatorNPT ALL ENDS
Connection StylePLAIN (PIPE) ALL ENDS
Material Document and ClassificationASTM B43 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Specification/standard Data81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
Style DesignatorLONG
Connection TypeTHREADED EXTERNAL PIPE ALL ENDS
Nominal Overall Length6.000 INCHES IN
Nominal Thread Size1.250 INCHES ALL ENDS IN
MaterialCOPPER ALLOY OVERALL
MaterialCOPPER ALLOY OVERALL
Nominal Overall Length6.000 INCHES IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4730-00-050-1989 INTERCHANGEABLE
Nipple,pipe
4730-00-193-2716B687R-99B INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
3020-00-244-0298140-2CL INTERCHANGEABLE
Link,roller Chain
Emerson Power Transmission Corporation Div Ept
3120-00-287-687011-144 INTERCHANGEABLE
Bearing,sleeve
Dresser, Llc
4730-00-684-4206B687XS-96B INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
4730-00-825-7781B687XS-60B INTERCHANGEABLE
Nipple,pipe
American Society for Testing and Materials Dba Astm International
5905-01-197-2510B-687 INTERCHANGEABLE
Resistor,fixed,wire Wound
Kurz & Root Generator Company, Llc
Cross-Reference Index
Part NumberManufacturer
WWN351 Ga Pipe Inc Dba Trenton Pipe Nipple Co (USA)
13275A Hercules Engine Co Inc (USA)
ASTM-B687 American Society for Testing and Materials Dba Astm International (USA)
13275A Brinkley Technology Group Llc Dba Hercules Manufacturing (USA)
WWN351 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
B687R-126B PRIMARY American Society for Testing and Materials Dba Astm International (USA)
B687 American Society for Testing and Materials Dba Astm International (USA)
MS51846-126 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-050-1989INTERCHANGEABLE
NIPPLE,PIPE
4730-00-193-2716INTERCHANGEABLE
NIPPLE,PIPE
B687R-99B
3020-00-244-0298INTERCHANGEABLE
LINK,ROLLER CHAIN
140-2CL
3120-00-287-6870INTERCHANGEABLE
BEARING,SLEEVE
11-144
4730-00-684-4206INTERCHANGEABLE
NIPPLE,PIPE
B687XS-96B
4730-00-825-7781INTERCHANGEABLE
NIPPLE,PIPE
B687XS-60B
5905-01-197-2510INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
B-687

Frequently Asked Questions

What is NSN 4730-00-196-2021?

NSN 4730-00-196-2021 is a Nipple,pipe, manufactured by American Society for Testing and Materials Dba Astm International, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-00-196-2021?

NSN 4730-00-196-2021 has 8 cross-referenced part numbers: WWN351 (Ga Pipe Inc Dba Trenton Pipe Nipple Co), 13275A (Hercules Engine Co Inc), ASTM-B687 (American Society for Testing and Materials Dba Astm International), 13275A (Brinkley Technology Group Llc Dba Hercules Manufacturing), WWN351 (Federal Specifications Promulgated by General Services Administration Washington DC) and 3 more.

What NSN replaces 4730-00-196-2021?

There are 7 known substitutes for 4730-00-196-2021: 4730-00-050-1989, 4730-00-193-2716, 3020-00-244-0298 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B687R-126B?

Key specifications for B687R-126B: End Item Identification: MULTI APPLICATION; Nominal Thread Size: 1.250 INCHES ALL ENDS IN; Specification/standard Data: 81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD; Style Designator: LONG. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-196-2021 still in active supply?

NSN 4730-00-196-2021 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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