PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

125621Mount,detector,autocollimator

Lockheed Martin Corp Electronics and Missiles Div · NSN 1240-01-086-1263 · FSC 1240 · No Item Name Available
Verified by PartsTable
NSN 1240-01-086-1263 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-086-1263. Primary manufacturer part number: 125621.
Features
  • Mount,detector,autocollimator — FSC 1240
  • FSC Application Data: FIRE CONTROL OPTICAL ASSEMBLY
  • General Characteristics Item Description: ITEM CONSISTS OF WIDTH 0.270 PORM 0.005 IN.,MINIMUM DIA 0.598 IN.,MAXIMUM DIA 0.600 IN.,MATL PHENOLIC ROD,FORM R,TYPE FBE OR FBG PER MIL-P-79 IN
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corp Electronics and Missiles Div
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mount,detector,autocollimator, cataloged under National Stock Number 1240-01-086-1263, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Lockheed Martin Corp Electronics and Missiles Div. Government technical data includes 2 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1240-01-086-1263
Primary Part Number125621
Item NameMount,detector,autocollimator
FSC / FSG1240 / 12 — No Item Name Available
ManufacturerLockheed Martin Corp Electronics and Missiles Div
StatusACTIVE
FSC Application DataFIRE CONTROL OPTICAL ASSEMBLY
General Characteristics Item DescriptionITEM CONSISTS OF WIDTH 0.270 PORM 0.005 IN.,MINIMUM DIA 0.598 IN.,MAXIMUM DIA 0.600 IN.,MATL PHENOLIC ROD,FORM R,TYPE FBE OR FBG PER MIL-P-79 IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5133-00-266-946811/16 2510/950 INTERCHANGEABLE
Drill,twist
Greenfield Industries Inc
2940-00-460-32221116GF INTERCHANGEABLE
Filter Element,fluid
Wm W Nugent & Co Inc
5365-00-758-488112562-1 INTERCHANGEABLE
Spacer,sleeve
Breeze-Eastern Llc
5999-01-173-7253 INTERCHANGEABLE
Contact Kit,electrical
5340-01-358-8309 INTERCHANGEABLE
Strap,webbing
Cross-Reference Index
Part NumberManufacturer
125621 PRIMARY Lockheed Martin Corp Electronics and Missiles Div (USA)
Related Parts
5133-00-266-9468INTERCHANGEABLE
DRILL,TWIST
11/16 2510/950
2940-00-460-3222INTERCHANGEABLE
FILTER ELEMENT,FLUID
1116GF
5365-00-758-4881INTERCHANGEABLE
SPACER,SLEEVE
12562-1
5999-01-173-7253INTERCHANGEABLE
CONTACT KIT,ELECTRICAL
5340-01-358-8309INTERCHANGEABLE
STRAP,WEBBING

Frequently Asked Questions

What is NSN 1240-01-086-1263?

NSN 1240-01-086-1263 is a Mount,detector,autocollimator, manufactured by Lockheed Martin Corp Electronics and Missiles Div, classified under FSC 1240 (No Item Name Available). Status: active.

What are the part numbers for NSN 1240-01-086-1263?

NSN 1240-01-086-1263 has 1 cross-referenced part number: 125621 (Lockheed Martin Corp Electronics and Missiles Div).

What NSN replaces 1240-01-086-1263?

There are 5 known substitutes for 1240-01-086-1263: 5133-00-266-9468, 2940-00-460-3222, 5365-00-758-4881 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 125621?

Key specifications for 125621: FSC Application Data: FIRE CONTROL OPTICAL ASSEMBLY; End Item Identification: AN/AVQ-26,TARGET DESIGNATOR SET-ELECTRO-OPTICAL; General Characteristics Item Description: ITEM CONSISTS OF WIDTH 0.270 PORM 0.005 IN.,MINIMUM DIA 0.598 IN.,MAXIMUM DIA 0.600 IN.,MATL PHENOLIC ROD,FORM R,TYPE FBE OR FBG PER MIL-P-79 IN. 3 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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