PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

820-5348415-21Flange,gland,valve

Naval Sea Systems Command · NSN 4820-01-341-5120 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-341-5120 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-341-5120. Primary manufacturer part number: 820-5348415-21.
Features
  • Flange,gland,valve — FSC 4820
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Flange,gland,valve, cataloged under National Stock Number 4820-01-341-5120, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-341-5120
Primary Part Number820-5348415-21
Item NameFlange,gland,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5133-00-189-9261 INTERCHANGEABLE
Drill,twist
5120-01-112-8320 INTERCHANGEABLE
Socket,socket Wrench
6515-01-577-1814312.35 INTERCHANGEABLE
Sleeve,drill,bone Fixation
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
2590-01-604-516013316 INTERCHANGEABLE
Cover,vehicular Components
Tulsa Winch, Inc.
Cross-Reference Index
Part NumberManufacturer
820-5348415-21 Naval Sea Systems Command (USA)
13316 Mark Controls Corp Pacific Valves Div (USA)
Related Parts
5133-00-189-9261INTERCHANGEABLE
DRILL,TWIST
5120-01-112-8320INTERCHANGEABLE
SOCKET,SOCKET WRENCH
6515-01-577-1814INTERCHANGEABLE
SLEEVE,DRILL,BONE FIXATION
312.35
2590-01-604-5160INTERCHANGEABLE
COVER,VEHICULAR COMPONENTS
13316

Frequently Asked Questions

What is NSN 4820-01-341-5120?

NSN 4820-01-341-5120 is a Flange,gland,valve, manufactured by Naval Sea Systems Command, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-341-5120?

NSN 4820-01-341-5120 has 2 cross-referenced part numbers: 820-5348415-21 (Naval Sea Systems Command), 13316 (Mark Controls Corp Pacific Valves Div).

What NSN replaces 4820-01-341-5120?

There are 4 known substitutes for 4820-01-341-5120: 5133-00-189-9261, 5120-01-112-8320, 6515-01-577-1814 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 820-5348415-21?

Key specifications for 820-5348415-21: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 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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