PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1519Diaphragm,valve,flat

Tescom Corp Dba Tescom Div Tescom · NSN 4820-01-263-0654 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-263-0654 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-263-0654. Primary manufacturer part number: 1519.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Specification/standard Data: 96906-MIL-STD-129 GOVERNMENT STANDARD AND 96906-MIL-STD-1308 GOVERNMENT STANDARD
  • 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
  • 5 verified cross-references
  • Primary manufacturer: Tescom Corp Dba Tescom Div Tescom
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-01-263-0654, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Tescom Corp Dba Tescom Div Tescom. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 1 manufacturer, 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
NSN4820-01-263-0654
Primary Part Number1519
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTescom Corp Dba Tescom Div Tescom
StatusACTIVE
Specification/standard Data96906-MIL-STD-129 GOVERNMENT STANDARD AND 96906-MIL-STD-1308 GOVERNMENT STANDARD
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 1
4820-01-263-6031 INTERCHANGEABLE
Seat,valve
Cross-Reference Index
Part NumberManufacturer
1519 Tescom Corp Dba Tescom Div Tescom (USA)
A41162-01ASSY26-1610-24FN6 Tescom Corp Dba Tescom Div Tescom (USA)
26-16XX-XX-292/IT 7 Tescom Corp Dba Tescom Div Tescom (USA)
26-16XX-XX-292ITEM7 Tescom Corp Dba Tescom Div Tescom (USA)
A41162-01ASSY26-1610-24FN5 Tescom Corp Dba Tescom Div Tescom (USA)
Related Parts
4820-01-263-6031INTERCHANGEABLE
SEAT,VALVE

Frequently Asked Questions

What is NSN 4820-01-263-0654?

NSN 4820-01-263-0654 is a Diaphragm,valve,flat, manufactured by Tescom Corp Dba Tescom Div Tescom, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-263-0654?

NSN 4820-01-263-0654 has 5 cross-referenced part numbers: 1519 (Tescom Corp Dba Tescom Div Tescom), A41162-01ASSY26-1610-24FN6 (Tescom Corp Dba Tescom Div Tescom), 26-16XX-XX-292/IT 7 (Tescom Corp Dba Tescom Div Tescom), 26-16XX-XX-292ITEM7 (Tescom Corp Dba Tescom Div Tescom), A41162-01ASSY26-1610-24FN5 (Tescom Corp Dba Tescom Div Tescom).

What NSN replaces 4820-01-263-0654?

There is 1 known substitute for 4820-01-263-0654: 4820-01-263-6031. Verify interchangeability with system specifications before substitution.

What are the specifications of 1519?

Key specifications for 1519: Specification/standard Data: 96906-MIL-STD-129 GOVERNMENT STANDARD AND 96906-MIL-STD-1308 GOVERNMENT STANDARD; 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. 3 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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