PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

74991BValve,regulating,fluid Pressure

Griswold Industries Dba Cla-Val Co · NSN 4820-01-197-9857 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-197-9857 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-197-9857. Primary manufacturer part number: 74991B.
Features
  • Valve,regulating,fluid Pressure — FSC 4820
  • Material: IRON CAST BODY
  • Outlet Pressure Range: 10.0 TO 100.0 CAMERA MOUNT
  • 2 verified cross-references
  • Primary manufacturer: Griswold Industries Dba Cla-Val Co
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Iron Cast Body construction
General Description

The Valve,regulating,fluid Pressure, cataloged under National Stock Number 4820-01-197-9857, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Griswold Industries Dba Cla-Val Co. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-01-197-9857
Primary Part Number74991B
Item NameValve,regulating,fluid Pressure
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGriswold Industries Dba Cla-Val Co
StatusCANCELLED
MaterialIRON CAST BODY
Outlet Pressure Range10.0 TO 100.0 CAMERA MOUNT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
5905-00-158-550515704 INTERCHANGEABLE
Resistor,variable,wire Wound,non
Ohmite Holding, L.l.c. Dba Ohmite Manufacturing
5970-00-391-975574991 INTERCHANGEABLE
Insulator,plate
Telemechanics Inc
6645-00-483-704474991 INTERCHANGEABLE
Actuator-Timer---Ap
Hamilton Sundstrand Corporation Dba Collins Aerospace
5330-00-641-789674991 INTERCHANGEABLE
Gasket
Honeywell International Inc. Div Aerospace - Torrance
5365-00-701-730574991 INTERCHANGEABLE
Shim
Triumph Engine Control Systems Llc
Cross-Reference Index
Part NumberManufacturer
74991B PRIMARY Griswold Industries Dba Cla-Val Co (USA)
74991 Griswold Industries Dba Cla-Val Co (USA)
Related Parts
5905-00-158-5505INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,NON
15704
5970-00-391-9755INTERCHANGEABLE
INSULATOR,PLATE
74991
6645-00-483-7044INTERCHANGEABLE
ACTUATOR-TIMER---AP
74991
5330-00-641-7896INTERCHANGEABLE
GASKET
74991
5365-00-701-7305INTERCHANGEABLE
SHIM
74991

Frequently Asked Questions

What is NSN 4820-01-197-9857?

NSN 4820-01-197-9857 is a Valve,regulating,fluid Pressure, manufactured by Griswold Industries Dba Cla-Val Co, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-01-197-9857?

NSN 4820-01-197-9857 has 2 cross-referenced part numbers: 74991B (Griswold Industries Dba Cla-Val Co), 74991 (Griswold Industries Dba Cla-Val Co).

What NSN replaces 4820-01-197-9857?

There are 5 known substitutes for 4820-01-197-9857: 5905-00-158-5505, 5970-00-391-9755, 6645-00-483-7044 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 74991B?

Key specifications for 74991B: Material: IRON CAST BODY; Outlet Pressure Range: 10.0 TO 100.0 CAMERA MOUNT. 2 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-01-197-9857 still in active supply?

NSN 4820-01-197-9857 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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