PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

11401Mount Subassembly

Aimpoint Inc Dba Aimpoint Inc · NSN 1240-01-551-5765 · FSC 1240 · No Item Name Available
Verified by PartsTable
NSN 1240-01-551-5765 — this item is cataloged by the U.S. Government under National Stock Number 1240-01-551-5765. Primary manufacturer part number: 11401.
Features
  • Mount Subassembly — FSC 1240
  • Major Components: TWIST MOUNT BASE 1; TWIST MOUNT RING 1
  • Component Quantity: 1
  • 2 verified cross-references
  • Primary manufacturer: Aimpoint Inc Dba Aimpoint Inc
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Mount Subassembly, cataloged under National Stock Number 1240-01-551-5765, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Aimpoint Inc Dba Aimpoint Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN1240-01-551-5765
Primary Part Number11401
Item NameMount Subassembly
FSC / FSG1240 / 12 — No Item Name Available
ManufacturerAimpoint Inc Dba Aimpoint Inc
StatusACTIVE
Major ComponentsTWIST MOUNT BASE 1; TWIST MOUNT RING 1
Component Quantity1
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5330-00-057-0729122-36 INTERCHANGEABLE
Gasket
Cummins Power Generation Inc.
2530-00-137-9235220635 INTERCHANGEABLE
Dummy Coupling,automotive Air Br
Bendix Commercial Vehicle Systems Llc Dba Bendix Commercial Vehicle Systems
5133-00-189-9281 INTERCHANGEABLE
Drill,twist
5133-00-228-1343 INTERCHANGEABLE
Drill,twist
6920-00-313-854711401 INTERCHANGEABLE
Tape Flannel
Swest Inc
1005-00-512-768711401 INTERCHANGEABLE
Plate,gun Charger P
Nobles Worldwide, Inc.
5355-00-538-6389 INTERCHANGEABLE
Window,dial
5950-00-647-9515 INTERCHANGEABLE
Coil,radio Frequency
3610-00-779-190912236 INTERCHANGEABLE
Extension,sign Arm
Smyth Mfg Co Sub of the Beacon Group
5950-00-883-3914 INTERCHANGEABLE
Transformer,power
Cross-Reference Index
Part NumberManufacturer
12236 Aimpoint Inc Dba Aimpoint Inc (USA)
11401 PRIMARY Aimpoint Inc Dba Aimpoint Inc (USA)
Related Parts
5330-00-057-0729INTERCHANGEABLE
GASKET
122-36
2530-00-137-9235INTERCHANGEABLE
DUMMY COUPLING,AUTOMOTIVE AIR BR
220635
5133-00-189-9281INTERCHANGEABLE
DRILL,TWIST
5133-00-228-1343INTERCHANGEABLE
DRILL,TWIST
6920-00-313-8547INTERCHANGEABLE
TAPE FLANNEL
11401
1005-00-512-7687INTERCHANGEABLE
PLATE,GUN CHARGER P
11401
5355-00-538-6389INTERCHANGEABLE
WINDOW,DIAL
5950-00-647-9515INTERCHANGEABLE
COIL,RADIO FREQUENCY
3610-00-779-1909INTERCHANGEABLE
EXTENSION,SIGN ARM
12236
5950-00-883-3914INTERCHANGEABLE
TRANSFORMER,POWER
6750-01-021-9877INTERCHANGEABLE
TAPE,FILM CLEANING
5430-01-130-4475INTERCHANGEABLE
FLAME ARRESTOR
122-36

Frequently Asked Questions

What is NSN 1240-01-551-5765?

NSN 1240-01-551-5765 is a Mount Subassembly, manufactured by Aimpoint Inc Dba Aimpoint Inc, classified under FSC 1240 (No Item Name Available). Status: active.

What are the part numbers for NSN 1240-01-551-5765?

NSN 1240-01-551-5765 has 2 cross-referenced part numbers: 12236 (Aimpoint Inc Dba Aimpoint Inc), 11401 (Aimpoint Inc Dba Aimpoint Inc).

What NSN replaces 1240-01-551-5765?

There are 12 known substitutes for 1240-01-551-5765: 5330-00-057-0729, 2530-00-137-9235, 5133-00-189-9281 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 11401?

Key specifications for 11401: End Item Identification: AIMPOINT 3XMAG TWIST MOUNT; Part Name Assigned by Controlling Agency: AIMPOINT 3XMAG TWIST MOUNT BASE, SEPARATE; Major Components: TWIST MOUNT BASE 1; TWIST MOUNT RING 1; Special Features: SEPARATE BASE FOR TWIST MOUNT; FITS ON PICATINNY RAIL. 5 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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