PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

J100Insulator,strain

Joslyn Corp · NSN 5970-00-144-1581 · FSC 5970 · No Item Name Available
Verified by PartsTable
NSN 5970-00-144-1581 — this item is cataloged by the U.S. Government under National Stock Number 5970-00-144-1581. Primary manufacturer part number: J100.
Features
  • Insulator,strain — FSC 5970
  • Identification Code Color: BROWN
  • Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S)
  • Radial Groove Radius: 0.500 INCHES NOMINAL IN
  • Style Designator: SPOOL
  • Mounting Hole Diameter: 0.531 INCHES NOMINAL IN
  • Material: PORCELAIN OVERALL
  • Outside Diameter: 2.250 INCHES NOMINAL IN
Applications
  • Applications requiring Porcelain Overall construction
General Description

The Insulator,strain, cataloged under National Stock Number 5970-00-144-1581, is classified within Federal Supply Class 5970 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Joslyn Corp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5970-00-144-1581
Primary Part NumberJ100
Item NameInsulator,strain
FSC / FSG5970 / 59 — No Item Name Available
ManufacturerJoslyn Corp
StatusACTIVE
Identification Code ColorBROWN
Mounting Facility Type and Quantity1 UNTHREADED HOLE(S)
Radial Groove Radius0.500 INCHES NOMINAL IN
Style DesignatorSPOOL
Mounting Hole Diameter0.531 INCHES NOMINAL IN
MaterialPORCELAIN OVERALL
Outside Diameter2.250 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
6660-00-151-7772KCI-100R INTERCHANGEABLE
Balloon,meteorological
Kaymont Consolidated Industries, Inc.
6660-00-151-7773KCI-100B INTERCHANGEABLE
Balloon,meteorological
Kaymont Consolidated Industries, Inc.
5930-00-552-1721SMD209454-1 INTERCHANGEABLE
Switch,push
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6660-00-663-8154KCI-100N INTERCHANGEABLE
Balloon,meteorological
Kaymont Consolidated Industries, Inc.
3433-01-006-5240WH250 INTERCHANGEABLE
Handle,welding Torch
Uniweld Products, Inc. Dba Uniweld Products Inc
2520-01-072-4435J100 INTERCHANGEABLE
Universal Joint,vehicular
Altra Industrial Motion Corp.
5120-01-293-2826J100 INTERCHANGEABLE
Screwdriver,flat Tip
The Stanley Works Dba Stanley Proto
8030-01-552-3635J100 INTERCHANGEABLE
Sealing Compound
Penray Companies Inc
6505-01-562-0122NDC00407-0690-10 INTERCHANGEABLE
Gadodiamide Injection
Ge Healthcare
6625-01-566-2759 INTERCHANGEABLE
Blackbody Source
Cross-Reference Index
Part NumberManufacturer
J100 PRIMARY Joslyn Corp (USA)
Related Parts
6660-00-151-7772INTERCHANGEABLE
BALLOON,METEOROLOGICAL
KCI-100R
6660-00-151-7773INTERCHANGEABLE
BALLOON,METEOROLOGICAL
KCI-100B
5930-00-552-1721INTERCHANGEABLE
SWITCH,PUSH
SMD209454-1
6660-00-663-8154INTERCHANGEABLE
BALLOON,METEOROLOGICAL
KCI-100N
3433-01-006-5240INTERCHANGEABLE
HANDLE,WELDING TORCH
WH250
2520-01-072-4435INTERCHANGEABLE
UNIVERSAL JOINT,VEHICULAR
J100
5120-01-293-2826INTERCHANGEABLE
SCREWDRIVER,FLAT TIP
J100
8030-01-552-3635INTERCHANGEABLE
SEALING COMPOUND
J100
6505-01-562-0122INTERCHANGEABLE
GADODIAMIDE INJECTION
NDC00407-0690-10
6625-01-566-2759INTERCHANGEABLE
BLACKBODY SOURCE

Frequently Asked Questions

What is NSN 5970-00-144-1581?

NSN 5970-00-144-1581 is a Insulator,strain, manufactured by Joslyn Corp, classified under FSC 5970 (No Item Name Available). Status: active.

What are the part numbers for NSN 5970-00-144-1581?

NSN 5970-00-144-1581 has 1 cross-referenced part number: J100 (Joslyn Corp).

What NSN replaces 5970-00-144-1581?

There are 10 known substitutes for 5970-00-144-1581: 6660-00-151-7772, 6660-00-151-7773, 5930-00-552-1721 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of J100?

Key specifications for J100: Overall Height: 2.125 INCHES NOMINAL IN; Identification Code Color: BROWN; Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S); Radial Groove Radius: 0.500 INCHES NOMINAL 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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