PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

175191Hook,nose Landing Gear Uplock

Lockheed Martin Corp · NSN 1560-00-122-4790 · FSC 1560 · No Item Name Available
Verified by PartsTable
NSN 1560-00-122-4790 — this item is cataloged by the U.S. Government under National Stock Number 1560-00-122-4790. Primary manufacturer part number: 175191.
Features
  • Hook,nose Landing Gear Uplock — FSC 1560
  • General Characteristics Item Description: STEEL,0.250 IN. THK,0.624 IN. MIN,0.625 IN. MAX DIA HOLE THRU 1 PLACE IN
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corp
Applications
  • Power transmission and speed reduction
  • Rotary motion transfer
  • Torque multiplication
General Description

The Hook,nose Landing Gear Uplock, cataloged under National Stock Number 1560-00-122-4790, is classified within Federal Supply Class 1560 (No Item Name Available) of the Aircraft and Airframe Components group. The primary manufacturer of record is Lockheed Martin Corp. 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. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1560-00-122-4790
Primary Part Number175191
Item NameHook,nose Landing Gear Uplock
FSC / FSG1560 / 15 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
General Characteristics Item DescriptionSTEEL,0.250 IN. THK,0.624 IN. MIN,0.625 IN. MAX DIA HOLE THRU 1 PLACE IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
2530-00-121-0273356027C91 INTERCHANGEABLE
Parts Kit,hydraulic Brake Master
Navistar Intl Corp Truck Br Ohio Plant
3530-00-359-7391 INTERCHANGEABLE
Collar,stop
5315-01-020-143117519-1 INTERCHANGEABLE
Pin,straight,headed
Meggitt North Hollywood Inc
2010-01-232-8325012056 INTERCHANGEABLE
Propeller,marine
Michigan Wheel Operations, Llc
5945-01-535-6125175191 INTERCHANGEABLE
Relay Subassembly
Hamilton Sundstrand Corporation Dba Collins Aerospace
Cross-Reference Index
Part NumberManufacturer
175191 PRIMARY Lockheed Martin Corp (USA)
Related Parts
2530-00-121-0273INTERCHANGEABLE
PARTS KIT,HYDRAULIC BRAKE MASTER
356027C91
3530-00-359-7391INTERCHANGEABLE
COLLAR,STOP
5315-01-020-1431INTERCHANGEABLE
PIN,STRAIGHT,HEADED
17519-1
2010-01-232-8325INTERCHANGEABLE
PROPELLER,MARINE
012056
5945-01-535-6125INTERCHANGEABLE
RELAY SUBASSEMBLY
175191

Frequently Asked Questions

What is NSN 1560-00-122-4790?

NSN 1560-00-122-4790 is a Hook,nose Landing Gear Uplock, manufactured by Lockheed Martin Corp, classified under FSC 1560 (No Item Name Available). Status: active.

What are the part numbers for NSN 1560-00-122-4790?

NSN 1560-00-122-4790 has 1 cross-referenced part number: 175191 (Lockheed Martin Corp).

What NSN replaces 1560-00-122-4790?

There are 5 known substitutes for 1560-00-122-4790: 2530-00-121-0273, 3530-00-359-7391, 5315-01-020-1431 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 175191?

Key specifications for 175191: General Characteristics Item Description: STEEL,0.250 IN. THK,0.624 IN. MIN,0.625 IN. MAX DIA HOLE THRU 1 PLACE IN. 1 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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