PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

103781Collar Assembly

Scott Huber Essick a Co of Figgie International Inc · NSN 2520-00-128-0800 · FSC 2520 · No Item Name Available
Verified by PartsTable
NSN 2520-00-128-0800 — this item is cataloged by the U.S. Government under National Stock Number 2520-00-128-0800. Primary manufacturer part number: 103781.
Features
  • Collar Assembly — FSC 2520
  • General Characteristics Item Description: BRASS; 4.500 IN. OD; 2.125 IN. ID; 0.812 IN. THK; 0.312 IN W INTERNAL GROOVE; W/TWO 0.625 IN. DIA BY 0.656 IN. LG LUGS ON OPPOSITE SIDES OF OD IN
  • 1 verified cross-reference
  • Primary manufacturer: Scott Huber Essick a Co of Figgie International Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Collar Assembly, cataloged under National Stock Number 2520-00-128-0800, is classified within Federal Supply Class 2520 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Scott Huber Essick a Co of Figgie International Inc. Government technical data includes 1 verified specification, 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2520-00-128-0800
Primary Part Number103781
Item NameCollar Assembly
FSC / FSG2520 / 25 — No Item Name Available
ManufacturerScott Huber Essick a Co of Figgie International Inc
StatusACTIVE
General Characteristics Item DescriptionBRASS; 4.500 IN. OD; 2.125 IN. ID; 0.812 IN. THK; 0.312 IN W INTERNAL GROOVE; W/TWO 0.625 IN. DIA BY 0.656 IN. LG LUGS ON OPPOSITE SIDES OF OD IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5120-00-132-1961 INTERCHANGEABLE
Inserter,electrical Contact
5935-00-570-61191251-0218 INTERCHANGEABLE
Retainer,electrical Connector
Keysight Technologies Inc
4920-00-626-389010378-1 INTERCHANGEABLE
Adapter,nipple
Elbitamerica, Inc.
6515-01-169-1014 INTERCHANGEABLE
Suture,nonabsorbable,surgical
5999-01-381-3576103781 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Lockhart Industries Inc
Cross-Reference Index
Part NumberManufacturer
103781 Scott Huber Essick a Co of Figgie International Inc (USA)
Related Parts
5120-00-132-1961INTERCHANGEABLE
INSERTER,ELECTRICAL CONTACT
5935-00-570-6119INTERCHANGEABLE
RETAINER,ELECTRICAL CONNECTOR
1251-0218
4920-00-626-3890INTERCHANGEABLE
ADAPTER,NIPPLE
10378-1
6515-01-169-1014INTERCHANGEABLE
SUTURE,NONABSORBABLE,SURGICAL
5999-01-381-3576INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
103781

Frequently Asked Questions

What is NSN 2520-00-128-0800?

NSN 2520-00-128-0800 is a Collar Assembly, manufactured by Scott Huber Essick a Co of Figgie International Inc, classified under FSC 2520 (No Item Name Available). Status: active.

What are the part numbers for NSN 2520-00-128-0800?

NSN 2520-00-128-0800 has 1 cross-referenced part number: 103781 (Scott Huber Essick a Co of Figgie International Inc).

What NSN replaces 2520-00-128-0800?

There are 5 known substitutes for 2520-00-128-0800: 5120-00-132-1961, 5935-00-570-6119, 4920-00-626-3890 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 103781?

Key specifications for 103781: General Characteristics Item Description: BRASS; 4.500 IN. OD; 2.125 IN. ID; 0.812 IN. THK; 0.312 IN W INTERNAL GROOVE; W/TWO 0.625 IN. DIA BY 0.656 IN. LG LUGS ON OPPOSITE SIDES OF OD IN. 1 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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