PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

176719Roller,linear-Rotary Motion

Lockheed Martin Corp · NSN 3120-00-122-4200 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-122-4200 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-122-4200. Primary manufacturer part number: 176719.
Features
  • Roller,linear-Rotary Motion — FSC 3120
  • Material: STEEL COMP 4130
  • Face Width: 1.220 INCHES NOMINAL IN
  • Bore Inside Diameter: 0.257 INCHES NOMINAL IN
  • Material Document and Classification: MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE
  • Style Designator: PLAIN
  • Casehardening Indicator: NOT CASEHARDENED
  • Outside Diameter: 0.313 INCHES NOMINAL IN
Applications
  • Applications requiring Steel Comp 4130 construction
General Description

The Roller,linear-Rotary Motion, cataloged under National Stock Number 3120-00-122-4200, is classified within Federal Supply Class 3120 (No Item Name Available) of the Bearings group. The primary manufacturer of record is Lockheed Martin Corp. Government technical data includes 7 verified specifications, 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN3120-00-122-4200
Primary Part Number176719
Item NameRoller,linear-Rotary Motion
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
MaterialSTEEL COMP 4130
Face Width1.220 INCHES NOMINAL IN
Bore Inside Diameter0.257 INCHES NOMINAL IN
Material Document and ClassificationMIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE
Style DesignatorPLAIN
Casehardening IndicatorNOT CASEHARDENED
Outside Diameter0.313 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2910-00-238-00331174423 INTERCHANGEABLE
Filter Element,fluid
Deutz Corporation
5310-01-313-8505NC176719 INTERCHANGEABLE
Nut,self-Locking,hexagon
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
176719 PRIMARY Lockheed Martin Corp (USA)
Related Parts
2910-00-238-0033INTERCHANGEABLE
FILTER ELEMENT,FLUID
1174423
5310-01-313-8505INTERCHANGEABLE
NUT,SELF-LOCKING,HEXAGON
NC176719

Frequently Asked Questions

What is NSN 3120-00-122-4200?

NSN 3120-00-122-4200 is a Roller,linear-Rotary Motion, manufactured by Lockheed Martin Corp, classified under FSC 3120 (No Item Name Available). Status: active.

What are the part numbers for NSN 3120-00-122-4200?

NSN 3120-00-122-4200 has 1 cross-referenced part number: 176719 (Lockheed Martin Corp).

What NSN replaces 3120-00-122-4200?

There are 2 known substitutes for 3120-00-122-4200: 2910-00-238-0033, 5310-01-313-8505. Verify interchangeability with system specifications before substitution.

What are the specifications of 176719?

Key specifications for 176719: Material: STEEL COMP 4130; Face Width: 1.220 INCHES NOMINAL IN; Bore Inside Diameter: 0.257 INCHES NOMINAL IN; Material Document and Classification: MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE. 7 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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