PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F101933Reducer,tube

Tld Wollard Llc · NSN 4730-01-156-9976 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-156-9976 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-156-9976. Primary manufacturer part number: F101933.
Features
  • Reducer,tube — FSC 4730
  • Seat Nominal Radius: 0.06 INCHES ALL ENDS IN
  • Media for Which Designed: OIL SECOND RESPONSE
  • Nominal Outside Diameter Tube Accommodated: 0.312 INCHES SECOND END IN
  • Material: COPPER ALLOY OVERALL
  • Nominal Thread Size: 0.500 INCHES SECOND END IN
  • Nominal Outside Diameter Tube Accommodated: 0.375 INCHES FIRST END IN
  • Media for Which Designed: FLUID FIRST RESPONSE
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Copper Alloy Overall construction
General Description

The Reducer,tube, cataloged under National Stock Number 4730-01-156-9976, 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 Tld Wollard Llc. Government technical data includes 15 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-156-9976
Primary Part NumberF101933
Item NameReducer,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerTld Wollard Llc
StatusACTIVE
Seat Nominal Radius0.06 INCHES ALL ENDS IN
Media for Which DesignedOIL SECOND RESPONSE
Nominal Outside Diameter Tube Accommodated0.312 INCHES SECOND END IN
MaterialCOPPER ALLOY OVERALL
Nominal Thread Size0.500 INCHES SECOND END IN
Nominal Outside Diameter Tube Accommodated0.375 INCHES FIRST END IN
Media for Which DesignedFLUID FIRST RESPONSE
Reducer TypeCONCENTRIC
Connection StyleCOMPRESSION (TUBE) ALL ENDS
Nominal Thread Size0.562 INCHES FIRST END IN
Thread Series DesignatorUNF ALL ENDS
Furnished Items and Quantity2 TUBE COUPLING NUT W/SLEEVE
Connection TypeTHREADED EXTERNAL TUBE ALL ENDS
Nominal Overall Length0.900 INCHES IN
Thread Class2A ALL ENDS A
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
6625-00-125-3924S32 INTERCHANGEABLE
Ammeter
Weston Aerospace Ltd Div Weston Aerospace Ltd
2030-00-390-3894S32 INTERCHANGEABLE
Control Assy,pump
Lidgerwood Manufacturing Company Dba Lidgerwood Manufacturing Co Div Lidgerwood Manufacuring Co
4510-01-106-04551000DS32 INTERCHANGEABLE
Dispenser,soap
Texas Novachem Corp
6636-01-118-6576S-32-2-2 INTERCHANGEABLE
Chamber,environmental Testing
Thermotron Industries
4930-01-261-1121S-33 INTERCHANGEABLE
Dispensing Pump,hand Driven
Stevens Instrument Company
5930-01-324-2365S32 INTERCHANGEABLE
Switch,toggle
Nkk Switches of America Inc
5120-01-434-9193 INTERCHANGEABLE
Hammer,hand
Cross-Reference Index
Part NumberManufacturer
F101933 PRIMARY Tld Wollard Llc (USA)
S32 Royal Brass Mfg Co the (USA)
Related Parts
6625-00-125-3924INTERCHANGEABLE
AMMETER
S32
2030-00-390-3894INTERCHANGEABLE
CONTROL ASSY,PUMP
S32
4510-01-106-0455INTERCHANGEABLE
DISPENSER,SOAP
1000DS32
6636-01-118-6576INTERCHANGEABLE
CHAMBER,ENVIRONMENTAL TESTING
S-32-2-2
4930-01-261-1121INTERCHANGEABLE
DISPENSING PUMP,HAND DRIVEN
S-33
5930-01-324-2365INTERCHANGEABLE
SWITCH,TOGGLE
S32
5120-01-434-9193INTERCHANGEABLE
HAMMER,HAND

Frequently Asked Questions

What is NSN 4730-01-156-9976?

NSN 4730-01-156-9976 is a Reducer,tube, manufactured by Tld Wollard Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-156-9976?

NSN 4730-01-156-9976 has 2 cross-referenced part numbers: F101933 (Tld Wollard Llc), S32 (Royal Brass Mfg Co the).

What NSN replaces 4730-01-156-9976?

There are 7 known substitutes for 4730-01-156-9976: 6625-00-125-3924, 2030-00-390-3894, 4510-01-106-0455 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of F101933?

Key specifications for F101933: Seat Nominal Radius: 0.06 INCHES ALL ENDS IN; Media for Which Designed: OIL SECOND RESPONSE; Nominal Outside Diameter Tube Accommodated: 0.312 INCHES SECOND END IN; Material: COPPER ALLOY OVERALL. 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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