PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LK231Lock,valve Spring Retainer

Trw Inc Trw Intl Trade Government Sales Dept · NSN 2805-00-349-4701 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-349-4701 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-349-4701. Primary manufacturer part number: LK231.
Features
  • Lock,valve Spring Retainer — FSC 2805
  • Largest Outside Diameter: 0.629 INCHES NOMINAL IN
  • Style Designator: STRAIGHT BORE-STRAIGHT SIDES W/ROUNDED CORNERS
  • Thread Provision: UNTHREADED
  • Largest Inside Diameter: 0.283 INCHES NOMINAL IN
  • Material: STEEL
  • Casehardening Indicator: CASEHARDENED
  • 7 verified cross-references
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Mechanical energy storage
  • Vibration dampening
General Description

The Lock,valve Spring Retainer, cataloged under National Stock Number 2805-00-349-4701, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Trw Inc Trw Intl Trade Government Sales Dept. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2805-00-349-4701
Primary Part NumberLK231
Item NameLock,valve Spring Retainer
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerTrw Inc Trw Intl Trade Government Sales Dept
StatusCANCELLED
Largest Outside Diameter0.629 INCHES NOMINAL IN
Style DesignatorSTRAIGHT BORE-STRAIGHT SIDES W/ROUNDED CORNERS
Thread ProvisionUNTHREADED
Largest Inside Diameter0.283 INCHES NOMINAL IN
MaterialSTEEL
Casehardening IndicatorCASEHARDENED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
5330-00-154-4967 INTERCHANGEABLE
Seal,plain Encased
5950-00-647-6813 INTERCHANGEABLE
Transformer,power
5340-01-013-3162 INTERCHANGEABLE
Clamp,loop
6105-01-384-3063 INTERCHANGEABLE
Motor,alternating Current
Cross-Reference Index
Part NumberManufacturer
LK231 PRIMARY Trw Inc Trw Intl Trade Government Sales Dept (USA)
U-178 Echlin Inc (USA)
H-274 Dana Corp Engine Products Div (USA)
2193344 General Motors Llc Dba General Motors Llc (USA)
B5Q6518A Ford Motor Company (USA)
B5Q6518A Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
2193344 Military Vehicles Opn General Motors Truck and Bus Group Ms 2603-02 (USA)
Related Parts
5330-00-154-4967INTERCHANGEABLE
SEAL,PLAIN ENCASED
5950-00-647-6813INTERCHANGEABLE
TRANSFORMER,POWER
5340-01-013-3162INTERCHANGEABLE
CLAMP,LOOP
6105-01-384-3063INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT

Frequently Asked Questions

What is NSN 2805-00-349-4701?

NSN 2805-00-349-4701 is a Lock,valve Spring Retainer, manufactured by Trw Inc Trw Intl Trade Government Sales Dept, classified under FSC 2805 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2805-00-349-4701?

NSN 2805-00-349-4701 has 7 cross-referenced part numbers: LK231 (Trw Inc Trw Intl Trade Government Sales Dept), U-178 (Echlin Inc), H-274 (Dana Corp Engine Products Div), 2193344 (General Motors Llc Dba General Motors Llc), B5Q6518A (Ford Motor Company) and 2 more.

What NSN replaces 2805-00-349-4701?

There are 4 known substitutes for 2805-00-349-4701: 5330-00-154-4967, 5950-00-647-6813, 5340-01-013-3162 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of LK231?

Key specifications for LK231: Largest Outside Diameter: 0.629 INCHES NOMINAL IN; Style Designator: STRAIGHT BORE-STRAIGHT SIDES W/ROUNDED CORNERS; Thread Provision: UNTHREADED; Largest Inside Diameter: 0.283 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2805-00-349-4701 still in active supply?

NSN 2805-00-349-4701 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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