PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15520Hook Block

Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. · NSN 3940-01-178-0011 · FSC 3940 · No Item Name Available
Verified by PartsTable
NSN 3940-01-178-0011 — this item is cataloged by the U.S. Government under National Stock Number 3940-01-178-0011. Primary manufacturer part number: 15520.
Features
  • Hook Block — FSC 3940
  • 1 verified cross-reference
  • Primary manufacturer: Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Hook Block, cataloged under National Stock Number 3940-01-178-0011, is classified within Federal Supply Class 3940 (No Item Name Available) of the Materials Handling Equipment group. The primary manufacturer of record is Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.. This item has 1 commercial cross-reference 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.

Catalog Facts
Item NameHook Block
FSC / FSG3940 — No Item Name Available (FSG 39)
ManufacturersTiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (CAGE 13841)
Technical Specifications
ParameterValue
NSN3940-01-178-0011
Primary Part Number15520
Item NameHook Block
FSC / FSG3940 / 39 — No Item Name Available
ManufacturerTiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5950-00-087-6705 INTERCHANGEABLE
Reactor
3110-00-100-03642820 INTERCHANGEABLE
Cup,tapered Roller Bearing
Federal-Mogul Corp Government Sales Dept
3110-00-100-0524 INTERCHANGEABLE
Cup,tapered Roller Bearing
3110-00-155-6302 INTERCHANGEABLE
Bearing,ball,annular
5110-00-253-3163 INTERCHANGEABLE
Reamer,hand
3040-00-318-0979112927R1 INTERCHANGEABLE
Shaft,shouldered
Navistar Intl Corp Truck Br Ohio Plant
6625-00-468-693160091G002 INTERCHANGEABLE
Test Set Subassembly,electrical
Hersey Measurement Co Div of Miller Industries Inc
3020-00-475-0637155-20 INTERCHANGEABLE
Gear,spur
Southern Gear & Machine Inc
2805-00-528-637715520 INTERCHANGEABLE
Valve,poppet,engine
Brinkley Technology Group Llc Dba Hercules Manufacturing
3030-00-936-717315520 INTERCHANGEABLE
Belt,v
Carlisle Power Transmission Products Inc
Cross-Reference Index
Part NumberManufacturer
15520 PRIMARY Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
Related Parts
5950-00-087-6705INTERCHANGEABLE
REACTOR
3110-00-100-0364INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
2820
3110-00-100-0524INTERCHANGEABLE
CUP,TAPERED ROLLER BEARING
3110-00-155-6302INTERCHANGEABLE
BEARING,BALL,ANNULAR
5110-00-253-3163INTERCHANGEABLE
REAMER,HAND
3040-00-318-0979INTERCHANGEABLE
SHAFT,SHOULDERED
112927R1
6625-00-468-6931INTERCHANGEABLE
TEST SET SUBASSEMBLY,ELECTRICAL
60091G002
3020-00-475-0637INTERCHANGEABLE
GEAR,SPUR
155-20
2805-00-528-6377INTERCHANGEABLE
VALVE,POPPET,ENGINE
15520
3030-00-936-7173INTERCHANGEABLE
BELT,V
15520
5962-01-067-4970INTERCHANGEABLE
MICROCIRCUIT,LINEAR
SCD 15520
8145-01-139-5624INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER
15520

Frequently Asked Questions

What is NSN 3940-01-178-0011?

NSN 3940-01-178-0011 is a Hook Block, manufactured by Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp., classified under FSC 3940 (No Item Name Available). Status: active.

What are the part numbers for NSN 3940-01-178-0011?

NSN 3940-01-178-0011 has 1 cross-referenced part number: 15520 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).

What NSN replaces 3940-01-178-0011?

There are 12 known substitutes for 3940-01-178-0011: 5950-00-087-6705, 3110-00-100-0364, 3110-00-100-0524 and 9 more. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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