PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MB-74 FIND NO. 164Diaphragm,valve,flat

Tescom Corp Dba Tescom Div Tescom · NSN 4820-01-674-3600 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-674-3600 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-674-3600. Primary manufacturer part number: MB-74 FIND NO. 164.
Features
  • Diaphragm,valve,flat — FSC 4820
  • Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICALS AS DIFFERENTIATED BY SPECIAL TEST FEATURES
  • Criticality Code Justification: ZZZY
  • 4 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 4820-01-674-3600, 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 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-674-3600
Primary Part NumberMB-74 FIND NO. 164
Item NameDiaphragm,valve,flat
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTescom Corp Dba Tescom Div Tescom
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL CONTROLLED IAW SS800-AG-MAN-010/P9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICALS AS DIFFERENTIATED BY SPECIAL TEST FEATURES
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5930-00-110-08302647 INTERCHANGEABLE
Switch,rotary
General Microwave Corporation Div Kratos Microwave Electronics
9540-00-167-4324 INTERCHANGEABLE
Beam,structural
5905-01-137-45308993146 INTERCHANGEABLE
Resistor,thermal
General Motors Llc Dba General Motors Llc
4730-01-478-14392647 INTERCHANGEABLE
Tee,pipe
Better Engineering Manufacturing Inc
5935-01-542-87082647 INTERCHANGEABLE
Connector,plug,electrical
Abb Installation Products Inc
Cross-Reference Index
Part NumberManufacturer
MB-74 FIND NO. 164 Tescom Corp Dba Tescom Div Tescom (USA)
2647D0 Naval Inventory Control Point Mechanicsburg (USA)
2647 Tescom Corp Dba Tescom Div Tescom (USA)
MB-74 FIND NO. 164D0 Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
5930-00-110-0830INTERCHANGEABLE
SWITCH,ROTARY
2647
9540-00-167-4324INTERCHANGEABLE
BEAM,STRUCTURAL
5905-01-137-4530INTERCHANGEABLE
RESISTOR,THERMAL
8993146
4730-01-478-1439INTERCHANGEABLE
TEE,PIPE
2647
5935-01-542-8708INTERCHANGEABLE
CONNECTOR,PLUG,ELECTRICAL
2647

Frequently Asked Questions

What is NSN 4820-01-674-3600?

NSN 4820-01-674-3600 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 4820-01-674-3600?

NSN 4820-01-674-3600 has 4 cross-referenced part numbers: MB-74 FIND NO. 164 (Tescom Corp Dba Tescom Div Tescom), 2647D0 (Naval Inventory Control Point Mechanicsburg), 2647 (Tescom Corp Dba Tescom Div Tescom), MB-74 FIND NO. 164D0 (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 4820-01-674-3600?

There are 5 known substitutes for 4820-01-674-3600: 5930-00-110-0830, 9540-00-167-4324, 5905-01-137-4530 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MB-74 FIND NO. 164?

Key specifications for MB-74 FIND NO. 164: Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P9290 SYSTEM CERTIFICATION PROCEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS AND REQUIRES CLEANING, PACKING, AND MARKING IAW MIL-STD-1622 OR MIL-STD-1330 AS DEEMED APPLICABLE; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICALS AS DIFFERENTIATED BY SPECIAL TEST FEATURES; Part Name Assigned by Controlling Agency: BUTTON, DIAPHRAGM; Criticality Code Justification: ZZZY. 3 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com