PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3-811-69-0031CPStem,fluid Valve

Naval Inventory Control Point Mechanicsburg · NSN 4820-01-268-3307 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-268-3307 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-268-3307. Primary manufacturer part number: 3-811-69-0031CP.
Features
  • Stem,fluid Valve — FSC 4820
  • Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
  • Criticality Code Justification: ZZZY
  • 3 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Stem,fluid Valve, cataloged under National Stock Number 4820-01-268-3307, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-268-3307
Primary Part Number3-811-69-0031CP
Item NameStem,fluid Valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Reference Number Differentiating CharacteristicsCLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4820-00-633-8591 INTERCHANGEABLE
Stem,valve,expansion
Cross-Reference Index
Part NumberManufacturer
3-811-69-0031CP Naval Inventory Control Point Mechanicsburg (USA)
H3-811-69-0031 Greenfield Compression Inc. (USA)
3-811-69-0031 Greenfield Compression Inc. (USA)
Related Parts
4820-00-633-8591INTERCHANGEABLE
STEM,VALVE,EXPANSION

Frequently Asked Questions

What is NSN 4820-01-268-3307?

NSN 4820-01-268-3307 is a Stem,fluid Valve, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-268-3307?

NSN 4820-01-268-3307 has 3 cross-referenced part numbers: 3-811-69-0031CP (Naval Inventory Control Point Mechanicsburg), H3-811-69-0031 (Greenfield Compression Inc.), 3-811-69-0031 (Greenfield Compression Inc.).

What NSN replaces 4820-01-268-3307?

There is 1 known substitute for 4820-01-268-3307: 4820-00-633-8591. Verify interchangeability with system specifications before substitution.

What are the specifications of 3-811-69-0031CP?

Key specifications for 3-811-69-0031CP: Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW THE LATEST REVISION OF MIL-STD-1330; Criticality Code Justification: ZZZY. 2 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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