PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2387Block,mounting

Saginaw Products Corporation Dba Cignys · NSN 1740-01-166-4728 · FSC 1740 · No Item Name Available
Verified by PartsTable
NSN 1740-01-166-4728 — this item is cataloged by the U.S. Government under National Stock Number 1740-01-166-4728. Primary manufacturer part number: 2387.
Features
  • Block,mounting — FSC 1740
  • General Characteristics Item Description: STEEL,QQ-S-633; 3.375 IN.,2.500 IN. W,0.750 IN. H,WITH TWO HOLES O.406 IN. DIA OF EA,2.750 IN. C TO C IN
  • 1 verified cross-reference
  • Primary manufacturer: Saginaw Products Corporation Dba Cignys
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Block,mounting, cataloged under National Stock Number 1740-01-166-4728, is classified within Federal Supply Class 1740 (No Item Name Available) of the Aircraft Launch, Landing, and Ground Handling Equipment group. The primary manufacturer of record is Saginaw Products Corporation Dba Cignys. Government technical data includes 1 verified specification, 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1740-01-166-4728
Primary Part Number2387
Item NameBlock,mounting
FSC / FSG1740 / 17 — No Item Name Available
ManufacturerSaginaw Products Corporation Dba Cignys
StatusACTIVE
General Characteristics Item DescriptionSTEEL,QQ-S-633; 3.375 IN.,2.500 IN. W,0.750 IN. H,WITH TWO HOLES O.406 IN. DIA OF EA,2.750 IN. C TO C IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
5330-00-215-529125569C1 INTERCHANGEABLE
Gasket
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5996-00-323-0620608D7P6 INTERCHANGEABLE
Amplifier Subassembly
Keysight Technologies Inc
2530-00-383-5052404239 INTERCHANGEABLE
Steering Wheel
Zf Active Safety and Electronics Us Llc Div Trw Commercial Steering Systems
5950-00-645-2981 INTERCHANGEABLE
Transformer,radio Frequency
4920-00-708-30522387 INTERCHANGEABLE
Eye Assembly
Marvel Manufacturing Co Div the Marvel Manufacturing Company
3020-00-810-63261451 INTERCHANGEABLE
Gear,spur
Southern Gear & Machine Inc
5915-00-900-59332387 INTERCHANGEABLE
Filter,band Pass
Torotel, Inc. Div Torotel Products, Inc.
5331-01-005-0534AS3209-387 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
2387 PRIMARY Saginaw Products Corporation Dba Cignys (USA)
Related Parts
5330-00-215-5291INTERCHANGEABLE
GASKET
25569C1
5996-00-323-0620INTERCHANGEABLE
AMPLIFIER SUBASSEMBLY
608D7P6
2530-00-383-5052INTERCHANGEABLE
STEERING WHEEL
404239
5950-00-645-2981INTERCHANGEABLE
TRANSFORMER,RADIO FREQUENCY
4920-00-708-3052INTERCHANGEABLE
EYE ASSEMBLY
2387
3020-00-810-6326INTERCHANGEABLE
GEAR,SPUR
1451
5915-00-900-5933INTERCHANGEABLE
FILTER,BAND PASS
2387
5331-01-005-0534INTERCHANGEABLE
O-RING
AS3209-387

Frequently Asked Questions

What is NSN 1740-01-166-4728?

NSN 1740-01-166-4728 is a Block,mounting, manufactured by Saginaw Products Corporation Dba Cignys, classified under FSC 1740 (No Item Name Available). Status: active.

What are the part numbers for NSN 1740-01-166-4728?

NSN 1740-01-166-4728 has 1 cross-referenced part number: 2387 (Saginaw Products Corporation Dba Cignys).

What NSN replaces 1740-01-166-4728?

There are 8 known substitutes for 1740-01-166-4728: 5330-00-215-5291, 5996-00-323-0620, 2530-00-383-5052 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2387?

Key specifications for 2387: End Item Identification: AIRCRAFT MODEL CH-53E; General Characteristics Item Description: STEEL,QQ-S-633; 3.375 IN.,2.500 IN. W,0.750 IN. H,WITH TWO HOLES O.406 IN. DIA OF EA,2.750 IN. C TO C IN. 2 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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