PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

202220-4-4SAdapter,straight,tube to Boss

Danfoss Power Solutions II, Llc · NSN 4730-01-157-7964 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-157-7964 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-157-7964. Primary manufacturer part number: 202220-4-4S.
Features
  • Adapter,straight,tube to Boss — FSC 4730
  • Thread Class: 2A ALL ENDS A
  • Connection Type: THREADED EXTERNAL TUBE FIRST END
  • Seat Angle: 37.0 DEGREES FIRST END
  • Material: STEEL OVERALL
  • Nominal Outside Diameter Tube Accommodated: 0.250 INCHES FIRST END IN
  • Nominal Thread Size: 0.438 INCHES ALL ENDS IN
  • Connection Type: THREADED EXTERNAL BOSS SECOND END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Overall construction
General Description

The Adapter,straight,tube to Boss, cataloged under National Stock Number 4730-01-157-7964, 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 Danfoss Power Solutions II, Llc. Government technical data includes 11 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: Active.

Technical Specifications
ParameterValue
NSN4730-01-157-7964
Primary Part Number202220-4-4S
Item NameAdapter,straight,tube to Boss
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerDanfoss Power Solutions II, Llc
StatusACTIVE
Thread Class2A ALL ENDS A
Connection TypeTHREADED EXTERNAL TUBE FIRST END
Seat Angle37.0 DEGREES FIRST END
MaterialSTEEL OVERALL
Nominal Outside Diameter Tube Accommodated0.250 INCHES FIRST END IN
Nominal Thread Size0.438 INCHES ALL ENDS IN
Connection TypeTHREADED EXTERNAL BOSS SECOND END
Thread Series DesignatorUNF ALL ENDS
Nominal Overall Length1.040 INCHES IN
Connection StyleFLARED (TUBE) FIRST END
Connection StyleEXTERNAL SEAT FOR GASKET SEAL (BOSS) SECOND END
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6930-00-346-7188267057 INTERCHANGEABLE
Accelermeter
Cae Usa Inc.
4730-00-477-5072A16447 INTERCHANGEABLE
Cap,tube
Mueller Brass Co.
4730-01-157-7963 INTERCHANGEABLE
Adapter,straight,tube to Boss
4730-01-178-8461 INTERCHANGEABLE
Tee,tube
4730-01-178-8462 INTERCHANGEABLE
Tee,tube
4730-01-178-8463 INTERCHANGEABLE
Tee,tube
4730-01-178-8465 INTERCHANGEABLE
Reducer,tube
4730-01-178-8466202220-8-8S INTERCHANGEABLE
Adapter,straight,tube to Boss
Danfoss Power Solutions II, Llc
4730-01-179-2910 INTERCHANGEABLE
Reducer,tube
4730-01-179-5470 INTERCHANGEABLE
Coupling Half,self-Sealing
Cross-Reference Index
Part NumberManufacturer
202220-4-4S PRIMARY Danfoss Power Solutions II, Llc (USA)
4556027 Naval Ship Systems Command (USA)
2670-57 PIECE 87 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
2670-57 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
202220-4-4S Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution (USA)
Related Parts
6930-00-346-7188INTERCHANGEABLE
ACCELERMETER
267057
4730-00-477-5072INTERCHANGEABLE
CAP,TUBE
A16447
4730-01-157-7963INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
4730-01-178-8461INTERCHANGEABLE
TEE,TUBE
4730-01-178-8462INTERCHANGEABLE
TEE,TUBE
4730-01-178-8463INTERCHANGEABLE
TEE,TUBE
4730-01-178-8465INTERCHANGEABLE
REDUCER,TUBE
4730-01-178-8466INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO BOSS
202220-8-8S
4730-01-179-2910INTERCHANGEABLE
REDUCER,TUBE
4730-01-179-5470INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
4730-01-179-5471INTERCHANGEABLE
COUPLING HALF,SELF-SEALING
4730-01-180-0926INTERCHANGEABLE
COUPLING HALF,SELF-SEALING

Frequently Asked Questions

What is NSN 4730-01-157-7964?

NSN 4730-01-157-7964 is a Adapter,straight,tube to Boss, manufactured by Danfoss Power Solutions II, Llc, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-157-7964?

NSN 4730-01-157-7964 has 5 cross-referenced part numbers: 202220-4-4S (Danfoss Power Solutions II, Llc), 4556027 (Naval Ship Systems Command), 2670-57 PIECE 87 (Huntington Ingalls Inc Div Newport News Shipbuilding), 2670-57 (Huntington Ingalls Inc Div Newport News Shipbuilding), 202220-4-4S (Eaton Aeroquip Llc Dba Jackson North 1 Div Fluid and Electrical Distribution).

What NSN replaces 4730-01-157-7964?

There are 12 known substitutes for 4730-01-157-7964: 6930-00-346-7188, 4730-00-477-5072, 4730-01-157-7963 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 202220-4-4S?

Key specifications for 202220-4-4S: Thread Class: 2A ALL ENDS A; Connection Type: THREADED EXTERNAL TUBE FIRST END; Seat Angle: 37.0 DEGREES FIRST END; Material: STEEL OVERALL. 11 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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