PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

202256Lock,valve Spring Retainer

Crofton Co · NSN 2805-00-358-2934 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-358-2934 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-358-2934. Primary manufacturer part number: 202256.
Features
  • Lock,valve Spring Retainer — FSC 2805
  • Casehardening Indicator: NOT CASEHARDENED
  • Largest Outside Diameter: 0.464 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
  • First Ridge Radius: 0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
  • Largest Inside Diameter: 0.308 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
  • First Ridge Width: 0.054 INCHES MINIMUM AND 0.058 INCHES MAXIMUM IN
  • Second Ridge Width: 0.054 INCHES MINIMUM AND 0.058 INCHES MAXIMUM IN
  • Distance From Bottom to First Ridge Center: 0.191 INCHES MINIMUM IN
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 2805-00-358-2934, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Crofton Co. Government technical data includes 15 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2805-00-358-2934
Primary Part Number202256
Item NameLock,valve Spring Retainer
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerCrofton Co
StatusACTIVE
Casehardening IndicatorNOT CASEHARDENED
Largest Outside Diameter0.464 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
First Ridge Radius0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
Largest Inside Diameter0.308 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
First Ridge Width0.054 INCHES MINIMUM AND 0.058 INCHES MAXIMUM IN
Second Ridge Width0.054 INCHES MINIMUM AND 0.058 INCHES MAXIMUM IN
Distance From Bottom to First Ridge Center0.191 INCHES MINIMUM IN
Second Ridge Radius0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN
Largest Outside Width0.464 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN
Minimum Inside Diameter0.250 INCHES IN
Style DesignatorSTRAIGHT BORE W/TWO RIDGES-LOWER OUTSIDE RADIUS
Distance Between First and Second Ridge Centers0.155 INCHES MINIMUM AND 0.157 INCHES MAXIMUM IN
Thread ProvisionUNTHREADED
Outside Included Angle in Deg14.0
MaterialSTEEL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5340-00-909-9531202256 INTERCHANGEABLE
Deflector,dirt and Liquid
Honeywell International Inc. Div Aerospace - Torrance
6625-01-005-9488 INTERCHANGEABLE
Power Divider,coaxial
4820-01-470-510610338001103 INTERCHANGEABLE
Disk,valve
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
202256 Crofton Co (USA)
Related Parts
5340-00-909-9531INTERCHANGEABLE
DEFLECTOR,DIRT AND LIQUID
202256
6625-01-005-9488INTERCHANGEABLE
POWER DIVIDER,COAXIAL
4820-01-470-5106INTERCHANGEABLE
DISK,VALVE
10338001103

Frequently Asked Questions

What is NSN 2805-00-358-2934?

NSN 2805-00-358-2934 is a Lock,valve Spring Retainer, manufactured by Crofton Co, classified under FSC 2805 (No Item Name Available). Status: active.

What are the part numbers for NSN 2805-00-358-2934?

NSN 2805-00-358-2934 has 1 cross-referenced part number: 202256 (Crofton Co).

What NSN replaces 2805-00-358-2934?

There are 3 known substitutes for 2805-00-358-2934: 5340-00-909-9531, 6625-01-005-9488, 4820-01-470-5106. Verify interchangeability with system specifications before substitution.

What are the specifications of 202256?

Key specifications for 202256: Overall Height: 0.375 INCHES NOMINAL IN; Casehardening Indicator: NOT CASEHARDENED; Largest Outside Diameter: 0.464 INCHES MINIMUM AND 0.468 INCHES MAXIMUM IN; First Ridge Radius: 0.027 INCHES MINIMUM AND 0.029 INCHES MAXIMUM IN. 16 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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