PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B687R-32BNipple,pipe

American Society for Testing and Materials Dba Astm International · NSN 4730-00-196-1976 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-196-1976 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-196-1976. Primary manufacturer part number: B687R-32B.
Features
  • Nipple,pipe — FSC 4730
  • Nominal Overall Length: 4.000 INCHES IN
  • Specification/standard Data: 81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Thread Series Designator: NPT ALL ENDS
  • Nominal Overall Length: 4.000 INCHES IN
  • Nominal Thread Size: 0.250 INCHES ALL ENDS IN
  • Material: COPPER ALLOY OVERALL
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 4730-00-196-1976, 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 9 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-00-196-1976
Primary Part NumberB687R-32B
Item NameNipple,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerAmerican Society for Testing and Materials Dba Astm International
StatusCANCELLED
Nominal Overall Length4.000 INCHES IN
Specification/standard Data81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD
Connection StylePLAIN (PIPE) ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Nominal Overall Length4.000 INCHES IN
Nominal Thread Size0.250 INCHES ALL ENDS IN
MaterialCOPPER ALLOY OVERALL
Connection TypeTHREADED EXTERNAL 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
Nominal Thread Size0.250 INCHES ALL ENDS IN
Thread Series DesignatorNPT ALL ENDS
Style DesignatorLONG
Material Document and ClassificationASTM B43 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
6150-01-024-3574190728 INTERCHANGEABLE
Bus,conductor
Fluke Corp
5315-01-562-0400190728 INTERCHANGEABLE
Pin,spring
Jered Llc
5935-01-646-6764190728 INTERCHANGEABLE
Connector,plug,electrical
Angelus Corp, the Div the Angelus Corporation
Cross-Reference Index
Part NumberManufacturer
ASTM-B687 American Society for Testing and Materials Dba Astm International (USA)
36636PC11 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
190728 General Motors Corp (USA)
B687R-32B PRIMARY American Society for Testing and Materials Dba Astm International (USA)
WWN351 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51846-32 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
WWP351 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MS51846-32 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
268578PC7 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
Related Parts
6150-01-024-3574INTERCHANGEABLE
BUS,CONDUCTOR
190728
5315-01-562-0400INTERCHANGEABLE
PIN,SPRING
190728
5935-01-646-6764INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
190728

Frequently Asked Questions

What is NSN 4730-00-196-1976?

NSN 4730-00-196-1976 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 4730-00-196-1976?

NSN 4730-00-196-1976 has 9 cross-referenced part numbers: ASTM-B687 (American Society for Testing and Materials Dba Astm International), 36636PC11 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 190728 (General Motors Corp), B687R-32B (American Society for Testing and Materials Dba Astm International), WWN351 (Federal Specifications Promulgated by General Services Administration Washington DC) and 4 more.

What NSN replaces 4730-00-196-1976?

There are 3 known substitutes for 4730-00-196-1976: 6150-01-024-3574, 5315-01-562-0400, 5935-01-646-6764. Verify interchangeability with system specifications before substitution.

What are the specifications of B687R-32B?

Key specifications for B687R-32B: Nominal Overall Length: 4.000 INCHES IN; Specification/standard Data: 81346-ASTM B687 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD AND 96906-MS51846 GOVERNMENT STANDARD; Connection Style: PLAIN (PIPE) ALL ENDS; Thread Series Designator: NPT ALL ENDS. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-00-196-1976 still in active supply?

NSN 4730-00-196-1976 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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