PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1151381Holder,optical Element

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 1240-00-025-0278 · FSC 1240 · No Item Name Available
Verified by PartsTable
NSN 1240-00-025-0278 — this item is cataloged by the U.S. Government under National Stock Number 1240-00-025-0278. Primary manufacturer part number: 1151381.
Features
  • Holder,optical Element — FSC 1240
  • Material: STEEL CORROSION RESISTING
  • Supporting Object/surface Attachment Method: THREE 0.177 IN. DIA MOUNTING HOLES IN
  • 2 verified cross-references
  • Primary manufacturer: Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
Applications
  • Applications requiring Steel Corrosion Resisting construction
General Description

The Holder,optical Element, cataloged under National Stock Number 1240-00-025-0278, 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 2 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1240-00-025-0278
Primary Part Number1151381
Item NameHolder,optical Element
FSC / FSG1240 / 12 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusACTIVE
MaterialSTEEL CORROSION RESISTING
Supporting Object/surface Attachment MethodTHREE 0.177 IN. DIA MOUNTING HOLES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4720-00-718-6023 INTERCHANGEABLE
Hose Assembly,nonmetallic
Cross-Reference Index
Part NumberManufacturer
1151381 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
31153PC304 Bausch & Lomb Inc (USA)
Related Parts
4720-00-718-6023INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC

Frequently Asked Questions

What is NSN 1240-00-025-0278?

NSN 1240-00-025-0278 is a Holder,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 1240-00-025-0278?

NSN 1240-00-025-0278 has 2 cross-referenced part numbers: 1151381 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), 31153PC304 (Bausch & Lomb Inc).

What NSN replaces 1240-00-025-0278?

There is 1 known substitute for 1240-00-025-0278: 4720-00-718-6023. Verify interchangeability with system specifications before substitution.

What are the specifications of 1151381?

Key specifications for 1151381: End Item Identification: TELESCOPE; Material: STEEL CORROSION RESISTING; Supporting Object/surface Attachment Method: THREE 0.177 IN. DIA MOUNTING HOLES 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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