PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

781Diaphragm,valve,flat

Sealco Air Controls Inc · NSN 4820-00-093-5518 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-093-5518 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-093-5518. Primary manufacturer part number: 781.
Features
  • Diaphragm,valve,flat — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Sealco Air Controls Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Diaphragm,valve,flat, cataloged under National Stock Number 4820-00-093-5518, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sealco Air Controls Inc. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameDiaphragm,valve,flat
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersSealco Air Controls Inc (CAGE 10125)
Technical Specifications
ParameterValue
NSN4820-00-093-5518
Primary Part Number781
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSealco Air Controls Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6135-00-120-1019 INTERCHANGEABLE
Battery,nonrechargeable
8030-00-180-633959575 INTERCHANGEABLE
Caulking Compound
Loctite Corp
3530-00-223-356978-1 INTERCHANGEABLE
Sewing Machine,industrial
Singer Industrial Sewing Products Co Cutters Exchange Div
5310-00-262-4853 INTERCHANGEABLE
Washer,flat
5985-00-556-9202 INTERCHANGEABLE
Dummy Load,electrical
5340-00-724-43271035052-10 INTERCHANGEABLE
Clamp,loop
Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)
6505-01-010-3066NDC00002-1499-01 INTERCHANGEABLE
Tobramycin Injection
Eli Lilly and Company
6620-01-025-339506102-1 INTERCHANGEABLE
Gage,pressure,dial Indicating
Maxima Technologies & Systems Llc
6650-01-191-01390186-0880 INTERCHANGEABLE
Spectrophotometer
Applied Biosystems, Llc Dba Life Technologies
6505-01-249-9789781 INTERCHANGEABLE
Sodium Bicarbonate,citric Acid,a
E-Z-Em Inc
Cross-Reference Index
Part NumberManufacturer
781 PRIMARY Sealco Air Controls Inc (USA)
Related Parts
6135-00-120-1019INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
8030-00-180-6339INTERCHANGEABLE
CAULKING COMPOUND
59575
3530-00-223-3569INTERCHANGEABLE
SEWING MACHINE,INDUSTRIAL
78-1
5310-00-262-4853INTERCHANGEABLE
WASHER,FLAT
5985-00-556-9202INTERCHANGEABLE
DUMMY LOAD,ELECTRICAL
5340-00-724-4327INTERCHANGEABLE
CLAMP,LOOP
1035052-10
6505-01-010-3066INTERCHANGEABLE
TOBRAMYCIN INJECTION
NDC00002-1499-01
6620-01-025-3395INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
06102-1
6650-01-191-0139INTERCHANGEABLE
SPECTROPHOTOMETER
0186-0880
6505-01-249-9789INTERCHANGEABLE
SODIUM BICARBONATE,CITRIC ACID,A
781
5340-01-376-5592INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
781
4730-01-397-1172INTERCHANGEABLE
STRAINER,SEDIMENT
3.0-781

Frequently Asked Questions

What is NSN 4820-00-093-5518?

NSN 4820-00-093-5518 is a Diaphragm,valve,flat, manufactured by Sealco Air Controls Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-093-5518?

NSN 4820-00-093-5518 has 1 cross-referenced part number: 781 (Sealco Air Controls Inc).

What NSN replaces 4820-00-093-5518?

There are 12 known substitutes for 4820-00-093-5518: 6135-00-120-1019, 8030-00-180-6339, 3530-00-223-3569 and 9 more. Verify interchangeability with system specifications before substitution.

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