PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

102690Mast Section

Burch Company Inc, the · NSN 5985-01-678-4450 · FSC 5985 · No Item Name Available
Verified by PartsTable
NSN 5985-01-678-4450 — this item is cataloged by the U.S. Government under National Stock Number 5985-01-678-4450. Primary manufacturer part number: 102690.
Features
  • Mast Section — FSC 5985
  • 1 verified cross-reference
  • Primary manufacturer: Burch Company Inc, the
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mast Section, cataloged under National Stock Number 5985-01-678-4450, is classified within Federal Supply Class 5985 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Burch Company Inc, the. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5985-01-678-4450
Primary Part Number102690
Item NameMast Section
FSC / FSG5985 / 59 — No Item Name Available
ManufacturerBurch Company Inc, the
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5999-00-610-0483 INTERCHANGEABLE
Wire Mesh,knitted
6320-01-093-554310-1507 TYPE 2 INTERCHANGEABLE
Indicator,engine or
L3 Technologies, Inc.
5840-01-111-8189102690 INTERCHANGEABLE
Gear Train Assembly
Aimtron Systems, Llc
2920-01-437-475810-2690 INTERCHANGEABLE
Friction Assy,contr
L3 Technologies, Inc.
3040-01-437-5861 INTERCHANGEABLE
Lining,friction
2990-01-437-8397 INTERCHANGEABLE
Plate,friction
Cross-Reference Index
Part NumberManufacturer
102690 PRIMARY Burch Company Inc, the (USA)
Related Parts
5999-00-610-0483INTERCHANGEABLE
WIRE MESH,KNITTED
6320-01-093-5543INTERCHANGEABLE
INDICATOR,ENGINE OR
10-1507 TYPE 2
5840-01-111-8189INTERCHANGEABLE
GEAR TRAIN ASSEMBLY
102690
2920-01-437-4758INTERCHANGEABLE
FRICTION ASSY,CONTR
10-2690
3040-01-437-5861INTERCHANGEABLE
LINING,FRICTION
2990-01-437-8397INTERCHANGEABLE
PLATE,FRICTION

Frequently Asked Questions

What is NSN 5985-01-678-4450?

NSN 5985-01-678-4450 is a Mast Section, manufactured by Burch Company Inc, the, classified under FSC 5985 (No Item Name Available). Status: active.

What are the part numbers for NSN 5985-01-678-4450?

NSN 5985-01-678-4450 has 1 cross-referenced part number: 102690 (Burch Company Inc, the).

What NSN replaces 5985-01-678-4450?

There are 6 known substitutes for 5985-01-678-4450: 5999-00-610-0483, 6320-01-093-5543, 5840-01-111-8189 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 102690?

Key specifications for 102690: Part Name Assigned by Controlling Agency: TACAN MAST SYSTEM. 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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