PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-18866Nipple,tube

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4730-01-535-1488 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-535-1488 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-535-1488. Primary manufacturer part number: MIL-DTL-18866.
Features
  • Nipple,tube — FSC 4730
  • Style Designator: FLARED W/ CENTER WRENCHING FACILITY
  • Connection Style: PLAIN (TUBE) ALL ENDS
  • Nominal Overall Length: 0.657 INCHES IN
  • Surface Treatment: CADMIUM OVERALL
  • Connection Type: UNTHREADED INTERNAL TUBE ALL ENDS
  • Material: STEEL CORROSION RESISTING OVERALL
  • Nominal Outside Diameter Tube Accommodated: 0.398 INCHES ALL ENDS IN
Applications
  • Fluid conveyance
  • Hydraulic system plumbing
  • Pneumatic line routing
  • Applications requiring Steel Corrosion Resisting Overall construction
General Description

The Nipple,tube, cataloged under National Stock Number 4730-01-535-1488, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 7 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-535-1488
Primary Part NumberMIL-DTL-18866
Item NameNipple,tube
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Style DesignatorFLARED W/ CENTER WRENCHING FACILITY
Connection StylePLAIN (TUBE) ALL ENDS
Nominal Overall Length0.657 INCHES IN
Surface TreatmentCADMIUM OVERALL
Connection TypeUNTHREADED INTERNAL TUBE ALL ENDS
MaterialSTEEL CORROSION RESISTING OVERALL
Nominal Outside Diameter Tube Accommodated0.398 INCHES ALL ENDS IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4730-00-066-0142 INTERCHANGEABLE
Nipple,tube
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-18866 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS51501B8S Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
4730-00-066-0142INTERCHANGEABLE
NIPPLE,TUBE

Frequently Asked Questions

What is NSN 4730-01-535-1488?

NSN 4730-01-535-1488 is a Nipple,tube, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-535-1488?

NSN 4730-01-535-1488 has 2 cross-referenced part numbers: MIL-DTL-18866 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MS51501B8S (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 4730-01-535-1488?

There is 1 known substitute for 4730-01-535-1488: 4730-00-066-0142. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-18866?

Key specifications for MIL-DTL-18866: Special Features: FLARED 37 DEG; Style Designator: FLARED W/ CENTER WRENCHING FACILITY; Connection Style: PLAIN (TUBE) ALL ENDS; Nominal Overall Length: 0.657 INCHES IN. 8 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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