PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

89-1Mtg Base,alignscope

Brunson Instrument Company Dba Brunson Instrument Co · NSN 2040-01-139-2551 · FSC 2040 · No Item Name Available
Verified by PartsTable
NSN 2040-01-139-2551 — this item is cataloged by the U.S. Government under National Stock Number 2040-01-139-2551. Primary manufacturer part number: 89-1.
Features
  • Mtg Base,alignscope — FSC 2040
  • 2 verified cross-references
  • Primary manufacturer: Brunson Instrument Company Dba Brunson Instrument Co
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mtg Base,alignscope, cataloged under National Stock Number 2040-01-139-2551, is classified within Federal Supply Class 2040 (No Item Name Available) of the Ship and Marine Equipment group. The primary manufacturer of record is Brunson Instrument Company Dba Brunson Instrument Co. This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2040-01-139-2551
Primary Part Number89-1
Item NameMtg Base,alignscope
FSC / FSG2040 / 20 — No Item Name Available
ManufacturerBrunson Instrument Company Dba Brunson Instrument Co
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3110-00-100-61820283 INTERCHANGEABLE
Ball,bearing
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5975-00-223-1835 INTERCHANGEABLE
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3030-00-294-98401070289 INTERCHANGEABLE
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6730-00-356-5931 INTERCHANGEABLE
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5120-00-398-3538HS7627 INTERCHANGEABLE
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Hamilton Sundstrand Corporation Dba Collins Aerospace
4820-00-990-9008891-01-01-D INTERCHANGEABLE
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Elkhart Brass Manufacturing Company, Llc Div Elkhart Brass Manufacturing Company
2990-01-027-221421508 INTERCHANGEABLE
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6680-01-160-4236 INTERCHANGEABLE
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5940-01-215-7287891 INTERCHANGEABLE
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6850-01-371-8042891 INTERCHANGEABLE
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Cross-Reference Index
Part NumberManufacturer
89-1 PRIMARY Brunson Instrument Company Dba Brunson Instrument Co (USA)
SSB0673 Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance (USA)
Related Parts
3110-00-100-6182INTERCHANGEABLE
BALL,BEARING
0283
5975-00-223-1835INTERCHANGEABLE
HANGER,CABLE
3030-00-294-9840INTERCHANGEABLE
BELT,V
1070289
6730-00-356-5931INTERCHANGEABLE
SHAFT
5120-00-398-3538INTERCHANGEABLE
WRENCH,SOCKET,PROPE
HS7627
4820-00-990-9008INTERCHANGEABLE
VALVE,BALL
891-01-01-D
2990-01-027-2214INTERCHANGEABLE
MUFFLER,EXHAUST
21508
6680-01-160-4236INTERCHANGEABLE
METER,FLOW RATE INDICATING
5940-01-215-7287INTERCHANGEABLE
TERMINAL,LUG
891
6850-01-371-8042INTERCHANGEABLE
SKIN PROTECTIVE COMPOUND,CHEMICA
891
5365-01-437-6330INTERCHANGEABLE
SPACER,SLEEVE
5365-01-470-3080INTERCHANGEABLE
SPACER,SLEEVE

Frequently Asked Questions

What is NSN 2040-01-139-2551?

NSN 2040-01-139-2551 is a Mtg Base,alignscope, manufactured by Brunson Instrument Company Dba Brunson Instrument Co, classified under FSC 2040 (No Item Name Available). Status: active.

What are the part numbers for NSN 2040-01-139-2551?

NSN 2040-01-139-2551 has 2 cross-referenced part numbers: 89-1 (Brunson Instrument Company Dba Brunson Instrument Co), SSB0673 (Naval Ship Engineering Center Philadelphia Division Submarine Antenna Quality Assurance).

What NSN replaces 2040-01-139-2551?

There are 12 known substitutes for 2040-01-139-2551: 3110-00-100-6182, 5975-00-223-1835, 3030-00-294-9840 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 89-1?

Key specifications for 89-1: End Item Identification: MARINE HARDWARE AND HULL ITEMS. 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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