PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-I-3158Cord,fibrous

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 4020-01-390-3026 · FSC 4020 · No Item Name Available
Verified by PartsTable
NSN 4020-01-390-3026 — this item is cataloged by the U.S. Government under National Stock Number 4020-01-390-3026. Primary manufacturer part number: MIL-I-3158.
Features
  • Cord,fibrous — FSC 4020
  • Criticality Code Justification: ZZZW
  • Departure From Cited Document: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cord,fibrous, cataloged under National Stock Number 4020-01-390-3026, is classified within Federal Supply Class 4020 (No Item Name Available) of the Rope, Cable, Chain, 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 2 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4020-01-390-3026
Primary Part NumberMIL-I-3158
Item NameCord,fibrous
FSC / FSG4020 / 40 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Criticality Code JustificationZZZW
Departure From Cited DocumentMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
4020-00-240-2167 INTERCHANGEABLE
Cord,fibrous
4020-00-240-2168 INTERCHANGEABLE
Cord,fibrous
4020-00-240-2169 INTERCHANGEABLE
Cord,fibrous
4020-00-240-2170 INTERCHANGEABLE
Cord,fibrous
4020-00-240-2171 INTERCHANGEABLE
Cord,fibrous
4020-00-240-2172 INTERCHANGEABLE
Cord,fibrous
5970-01-013-9172 INTERCHANGEABLE
Insulation Cord,electrical
5970-01-013-9173 INTERCHANGEABLE
Insulation Cord,electrical
5970-01-327-3087 INTERCHANGEABLE
Insulation Cord,electrical
Cross-Reference Index
Part NumberManufacturer
MIL-I-3158 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-I-3158,TYPESR-4.5 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
4020-00-240-2167INTERCHANGEABLE
CORD,FIBROUS
4020-00-240-2168INTERCHANGEABLE
CORD,FIBROUS
4020-00-240-2169INTERCHANGEABLE
CORD,FIBROUS
4020-00-240-2170INTERCHANGEABLE
CORD,FIBROUS
4020-00-240-2171INTERCHANGEABLE
CORD,FIBROUS
4020-00-240-2172INTERCHANGEABLE
CORD,FIBROUS
5970-01-013-9172INTERCHANGEABLE
INSULATION CORD,ELECTRICAL
5970-01-013-9173INTERCHANGEABLE
INSULATION CORD,ELECTRICAL
5970-01-327-3087INTERCHANGEABLE
INSULATION CORD,ELECTRICAL

Frequently Asked Questions

What is NSN 4020-01-390-3026?

NSN 4020-01-390-3026 is a Cord,fibrous, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 4020 (No Item Name Available). Status: active.

What are the part numbers for NSN 4020-01-390-3026?

NSN 4020-01-390-3026 has 2 cross-referenced part numbers: MIL-I-3158 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-I-3158,TYPESR-4.5 (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 4020-01-390-3026?

There are 9 known substitutes for 4020-01-390-3026: 4020-00-240-2167, 4020-00-240-2168, 4020-00-240-2169 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-I-3158?

Key specifications for MIL-I-3158: Criticality Code Justification: ZZZW; Departure From Cited Document: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS. 2 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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