PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

176927Roller,linear-Rotary Motion

Lockheed Martin Corp · NSN 3120-00-193-1278 · FSC 3120 · No Item Name Available
Verified by PartsTable
NSN 3120-00-193-1278 — this item is cataloged by the U.S. Government under National Stock Number 3120-00-193-1278. Primary manufacturer part number: 176927.
Features
  • Roller,linear-Rotary Motion — FSC 3120
  • Bore Inside Diameter: 0.1873 INCHES MINIMUM AND 0.1883 INCHES MAXIMUM IN
  • Face Width: 0.350 INCHES NOMINAL IN
  • Criticality Code Justification: BCXD
  • Material: STEEL COMP 4130
  • Casehardening Indicator: NOT CASEHARDENED
  • Outside Diameter: 0.250 INCHES NOMINAL IN
  • Material Document and Classification: MIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE
Applications
  • Applications requiring Steel Comp 4130 construction
General Description

The Roller,linear-Rotary Motion, cataloged under National Stock Number 3120-00-193-1278, 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 8 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
NSN3120-00-193-1278
Primary Part Number176927
Item NameRoller,linear-Rotary Motion
FSC / FSG3120 / 31 — No Item Name Available
ManufacturerLockheed Martin Corp
StatusACTIVE
Bore Inside Diameter0.1873 INCHES MINIMUM AND 0.1883 INCHES MAXIMUM IN
Face Width0.350 INCHES NOMINAL IN
Criticality Code JustificationBCXD
MaterialSTEEL COMP 4130
Casehardening IndicatorNOT CASEHARDENED
Outside Diameter0.250 INCHES NOMINAL IN
Material Document and ClassificationMIL-T-6736 MIL SPEC SINGLE MATERIAL RESPONSE
Style DesignatorPLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-551-400849727 INTERCHANGEABLE
Seal,plain
Dana Automotive Systems Group, Llc Dba Dana Sealing Products
5330-00-824-0437176927 INTERCHANGEABLE
Seal,plain Encased
Cummins Inc.
Cross-Reference Index
Part NumberManufacturer
176927 PRIMARY Lockheed Martin Corp (USA)
Related Parts
5330-00-551-4008INTERCHANGEABLE
SEAL,PLAIN
49727
5330-00-824-0437INTERCHANGEABLE
SEAL,PLAIN ENCASED
176927

Frequently Asked Questions

What is NSN 3120-00-193-1278?

NSN 3120-00-193-1278 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 3120-00-193-1278?

NSN 3120-00-193-1278 has 1 cross-referenced part number: 176927 (Lockheed Martin Corp).

What NSN replaces 3120-00-193-1278?

There are 2 known substitutes for 3120-00-193-1278: 5330-00-551-4008, 5330-00-824-0437. Verify interchangeability with system specifications before substitution.

What are the specifications of 176927?

Key specifications for 176927: Bore Inside Diameter: 0.1873 INCHES MINIMUM AND 0.1883 INCHES MAXIMUM IN; Face Width: 0.350 INCHES NOMINAL IN; Criticality Code Justification: BCXD; Material: STEEL COMP 4130. 8 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com