PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1168938Retainer,optical Element

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 1240-00-382-1766 · FSC 1240 · No Item Name Available
Verified by PartsTable
NSN 1240-00-382-1766 — this item is cataloged by the U.S. Government under National Stock Number 1240-00-382-1766. Primary manufacturer part number: 1168938.
Features
  • Retainer,optical Element — FSC 1240
  • Style Designator: RECESSED
  • Material: STEEL
  • Hole Chamfer Diameter: 1.177 INCHES NOMINAL IN
  • Recess Depth: 0.025 INCHES NOMINAL IN
  • Setscrew Notch: NOT PROVIDED
  • Hole or Slot Quantity: 2
  • Diameter: 1.370 INCHES NOMINAL IN
Applications
  • Applications requiring Steel construction
General Description

The Retainer,optical Element, cataloged under National Stock Number 1240-00-382-1766, is classified within Federal Supply Class 1240 (No Item Name Available) of the Fire Control Equipment group. The primary manufacturer of record is Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1240-00-382-1766
Primary Part Number1168938
Item NameRetainer,optical Element
FSC / FSG1240 / 12 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
Style DesignatorRECESSED
MaterialSTEEL
Hole Chamfer Diameter1.177 INCHES NOMINAL IN
Recess Depth0.025 INCHES NOMINAL IN
Setscrew NotchNOT PROVIDED
Hole or Slot Quantity2
Diameter1.370 INCHES NOMINAL IN
Drive TypeSLOTTED
Hole Chamfer Angle in Deg0.0
Thread Size1.447 IN.-32 IN
Hole Diameter1.177 INCHES NOMINAL IN
Recess Angle in Deg30.0
Internal Annular SerrationNOT PROVIDED
Guide LocationBOTH EDGES
Guide DesignTHREAD CHAMFER
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
2530-00-215-536877804 INTERCHANGEABLE
Parts Kit,hydraulic Brake Master
Dressta North America Ltd
5360-00-909-8391 INTERCHANGEABLE
Spring,flat
4710-01-044-224977804-5 INTERCHANGEABLE
Tube,bent,metallic
L3harris Technologies, Inc. Div Space and Airborne Systems
5305-01-500-66720203MPI-SS INTERCHANGEABLE
Screw,machine
Thales Defense & Security Inc Dba Thales Communications Inc
Cross-Reference Index
Part NumberManufacturer
1168938 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
77804 Optical Technology Devices Inc (USA)
Related Parts
2530-00-215-5368INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE MASTER
77804
5360-00-909-8391INTERCHANGEABLE
SPRING,FLAT
4710-01-044-2249INTERCHANGEABLE
TUBE,BENT,METALLIC
77804-5
5305-01-500-6672INTERCHANGEABLE
SCREW,MACHINE
0203MPI-SS

Frequently Asked Questions

What is NSN 1240-00-382-1766?

NSN 1240-00-382-1766 is a Retainer,optical Element, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 1240 (No Item Name Available). Status: active.

What are the part numbers for NSN 1240-00-382-1766?

NSN 1240-00-382-1766 has 2 cross-referenced part numbers: 1168938 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 77804 (Optical Technology Devices Inc).

What NSN replaces 1240-00-382-1766?

There are 4 known substitutes for 1240-00-382-1766: 2530-00-215-5368, 5360-00-909-8391, 4710-01-044-2249 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1168938?

Key specifications for 1168938: Style Designator: RECESSED; Material: STEEL; Hole Chamfer Diameter: 1.177 INCHES NOMINAL IN; Recess Depth: 0.025 INCHES NOMINAL IN. 16 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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