PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

B16.3Coupling,pipe

The American Society of Mechanical Engineers · NSN 4730-01-111-4695 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-111-4695 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-111-4695. Primary manufacturer part number: B16.3.
Features
  • Coupling,pipe — FSC 4730
  • Surface Treatment: ZINC OVERALL
  • Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE
  • Material Document and Classification: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Connection Style: PLAIN (PIPE) ALL ENDS
  • Thread Series Designator: NPT ALL ENDS
  • Connection Type: THREADED INTERNAL PIPE ALL ENDS
  • Style Designator: PLAIN W/CONCAVE SIDES
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Iron Malleable Overall construction
General Description

The Coupling,pipe, cataloged under National Stock Number 4730-01-111-4695, 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 The American Society of Mechanical Engineers. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4730-01-111-4695
Primary Part NumberB16.3
Item NameCoupling,pipe
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerThe American Society of Mechanical Engineers
StatusCANCELLED
Surface TreatmentZINC OVERALL
Media for Which DesignedWATER-OIL-GAS SECOND RESPONSE
Material Document and ClassificationASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Connection StylePLAIN (PIPE) ALL ENDS
Thread Series DesignatorNPT ALL ENDS
Connection TypeTHREADED INTERNAL PIPE ALL ENDS
Style DesignatorPLAIN W/CONCAVE SIDES
MaterialIRON MALLEABLE OVERALL
Maximum Operating Temp150.0 FAHRENHEIT SECOND RESPONSE DEGF
Media for Which DesignedSTEAM FIRST RESPONSE
Nominal Overall Length2.530 INCHES IN
Maximum Operating Temp500.0 FAHRENHEIT FIRST RESPONSE DEGF
Nominal Thread Size2.000 INCHES ALL ENDS IN
Operating Pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
Surface Treatment Document and ClassificationASTM A153 ASSN STD SINGLE TREATMENT RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-012-0214 INTERCHANGEABLE
Washer,lock
4310-00-363-69863444X INTERCHANGEABLE
Valve,control
Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
5930-00-406-61432-47314 INTERCHANGEABLE
Switch,thermostatic
Chromalox Inc Dba Chromalox Precision Heat and Control, Inc
3020-00-423-08003444 INTERCHANGEABLE
Gear,spur
Clark Material Handling Company
3040-00-723-1968DS-932475 INTERCHANGEABLE
Cam,control
Eaton Aerospace, Llc Dba Jackson South
5342-00-737-1174 INTERCHANGEABLE
Clip,spring
6625-00-991-51793444 INTERCHANGEABLE
Test Set,electron Tube
Triplett (bluffton) Corporation Dba Lfe Instruments
5975-00-995-8168ST45100 INTERCHANGEABLE
Box Connector,electrical
Egs Electrical Group Appleton Div
6610-01-025-82833444 INTERCHANGEABLE
Shaft Assembly
Kearflex Engineering Company
4510-01-045-4029111-1405 INTERCHANGEABLE
Bowl,water Closet
Wallace-Murray Corp Eljer Plumbingware Div Vitreous China Plant
Cross-Reference Index
Part NumberManufacturer
B16.3 The American Society of Mechanical Engineers (USA)
MS39233-9 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
3444 Windham Lifts Inc (USA)
WWP521 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
ASME B16.3 The American Society of Mechanical Engineers (USA)
Related Parts
5310-00-012-0214INTERCHANGEABLE
WASHER,LOCK
4310-00-363-6986INTERCHANGEABLE
VALVE,CONTROL
3444X
5930-00-406-6143INTERCHANGEABLE
SWITCH,THERMOSTATIC
2-47314
3020-00-423-0800INTERCHANGEABLE
GEAR,SPUR
3444
3040-00-723-1968INTERCHANGEABLE
CAM,CONTROL
DS-932475
5342-00-737-1174INTERCHANGEABLE
CLIP,SPRING
6625-00-991-5179INTERCHANGEABLE
TEST SET,ELECTRON TUBE
3444
5975-00-995-8168INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
ST45100
6610-01-025-8283INTERCHANGEABLE
SHAFT ASSEMBLY
3444
4510-01-045-4029INTERCHANGEABLE
BOWL,WATER CLOSET
111-1405
6750-01-066-9914INTERCHANGEABLE
PLATE,PHOTOGRAPHIC
3444
6515-01-326-1611INTERCHANGEABLE
BLADE,ARTHROSCOPIC,SURGICAL
3444

Frequently Asked Questions

What is NSN 4730-01-111-4695?

NSN 4730-01-111-4695 is a Coupling,pipe, manufactured by The American Society of Mechanical Engineers, classified under FSC 4730 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4730-01-111-4695?

NSN 4730-01-111-4695 has 5 cross-referenced part numbers: B16.3 (The American Society of Mechanical Engineers), MS39233-9 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 3444 (Windham Lifts Inc), WWP521 (Federal Specifications Promulgated by General Services Administration Washington DC), ASME B16.3 (The American Society of Mechanical Engineers).

What NSN replaces 4730-01-111-4695?

There are 12 known substitutes for 4730-01-111-4695: 5310-00-012-0214, 4310-00-363-6986, 5930-00-406-6143 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of B16.3?

Key specifications for B16.3: Surface Treatment: ZINC OVERALL; Media for Which Designed: WATER-OIL-GAS SECOND RESPONSE; Material Document and Classification: ASTM A197 ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Connection Style: PLAIN (PIPE) ALL ENDS. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4730-01-111-4695 still in active supply?

NSN 4730-01-111-4695 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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