PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

77917-34X1PC18Adapter,straight,tube to Hose

Electric Boat Corporation Div General Dynamics Electric Boat · NSN 4730-00-070-1263 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-00-070-1263 — this item is cataloged by the U.S. Government under National Stock Number 4730-00-070-1263. Primary manufacturer part number: 77917-34X1PC18.
Features
  • Adapter,straight,tube to Hose — FSC 4730
  • Nominal Thread Size: 1.312 INCHES FIRST END IN
  • Criticality Code Justification: ZZZY
  • Nominal Outside Diameter Tube Accommodated: 1.000 INCHES FIRST END IN
  • Thread Quantity Per Inch: 12 FIRST END
  • Furnished Items and Quantity: 1 SOCKET
  • Nominal Overall Length: 2.800 INCHES IN
  • Thread Series Designator: UN FIRST END
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Nickel Alloy Overall construction
General Description

The Adapter,straight,tube to Hose, cataloged under National Stock Number 4730-00-070-1263, 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 Electric Boat Corporation Div General Dynamics Electric Boat. Government technical data includes 14 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: Active.

Technical Specifications
ParameterValue
NSN4730-00-070-1263
Primary Part Number77917-34X1PC18
Item NameAdapter,straight,tube to Hose
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerElectric Boat Corporation Div General Dynamics Electric Boat
StatusACTIVE
Nominal Thread Size1.312 INCHES FIRST END IN
Criticality Code JustificationZZZY
Nominal Outside Diameter Tube Accommodated1.000 INCHES FIRST END IN
Thread Quantity Per Inch12 FIRST END
Furnished Items and Quantity1 SOCKET
Nominal Overall Length2.800 INCHES IN
Thread Series DesignatorUN FIRST END
Reference Number Differentiating CharacteristicsMATERIAL CONTROLLED IAW NAVSEA 0948-LP-045-7010 MATERIAL CONTROL STANDARD FOR LEVEL I ITEMS
Nominal Inside Diameter Hose Accommodated0.875 INCHES SECOND END IN
Nominal Outside Diameter Hose Accommodated1.234 INCHES SECOND END IN
Thread Class2B FIRST END
Seat Angle37.0 DEGREES FIRST END
MaterialNICKEL ALLOY OVERALL
Material Document and ClassificationQQ-N-281,CL A FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3110-00-019-0401441-116 INTERCHANGEABLE
Bearing,roller,track Roller
The Raymond Corp Dba Raymond Sales Corp Div the Raymond Corporation
4730-00-052-48344-411-16 INTERCHANGEABLE
Adapter,straight,tube to Hose
Hydrasearch Company, Llc
4730-01-505-1131 INTERCHANGEABLE
Adapter,straight,tube to Hose
Cross-Reference Index
Part NumberManufacturer
77917-34X1PC18 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
4-411-16L1 Naval Inventory Control Point Mechanicsburg (USA)
77917-34X1PC18L1 Naval Inventory Control Point Mechanicsburg (USA)
20622-16-16NA Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division (USA)
20622-16-16M Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
20622-16-16ML1 Naval Inventory Control Point Mechanicsburg (USA)
4-411-16 Danfoss Power Solutions II, Llc (USA)
20622-16-16NAL1 Naval Inventory Control Point Mechanicsburg (USA)
20622-16-16NA Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division (USA)
Related Parts
3110-00-019-0401INTERCHANGEABLE
BEARING,ROLLER,TRACK ROLLER
441-116
4730-00-052-4834INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE
4-411-16
4730-01-505-1131INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE

Frequently Asked Questions

What is NSN 4730-00-070-1263?

NSN 4730-00-070-1263 is a Adapter,straight,tube to Hose, manufactured by Electric Boat Corporation Div General Dynamics Electric Boat, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-00-070-1263?

NSN 4730-00-070-1263 has 9 cross-referenced part numbers: 77917-34X1PC18 (Electric Boat Corporation Div General Dynamics Electric Boat), 4-411-16L1 (Naval Inventory Control Point Mechanicsburg), 77917-34X1PC18L1 (Naval Inventory Control Point Mechanicsburg), 20622-16-16NA (Parker-Hannifin Corporation Dba Pneutronics Div Hose Products Division), 20622-16-16M (Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division) and 4 more.

What NSN replaces 4730-00-070-1263?

There are 3 known substitutes for 4730-00-070-1263: 3110-00-019-0401, 4730-00-052-4834, 4730-01-505-1131. Verify interchangeability with system specifications before substitution.

What are the specifications of 77917-34X1PC18?

Key specifications for 77917-34X1PC18: Nominal Thread Size: 1.312 INCHES FIRST END IN; Criticality Code Justification: ZZZY; Nominal Outside Diameter Tube Accommodated: 1.000 INCHES FIRST END IN; Thread Quantity Per Inch: 12 FIRST END. 14 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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