PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

803510Admission Valve,regulator

Mine Safety Appliances Company · NSN 4240-01-386-5493 · FSC 4240 · No Item Name Available
Verified by PartsTable
NSN 4240-01-386-5493 — this item is cataloged by the U.S. Government under National Stock Number 4240-01-386-5493. Primary manufacturer part number: 803510.
Features
  • Admission Valve,regulator — FSC 4240
  • General Characteristics Item Description: ALLUMINUM ALLOY
  • 1 verified cross-reference
  • Primary manufacturer: Mine Safety Appliances Company
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Admission Valve,regulator, cataloged under National Stock Number 4240-01-386-5493, is classified within Federal Supply Class 4240 (No Item Name Available) of the Fire Fighting, Rescue, and Safety Equipment group. The primary manufacturer of record is Mine Safety Appliances Company. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN4240-01-386-5493
Primary Part Number803510
Item NameAdmission Valve,regulator
FSC / FSG4240 / 42 — No Item Name Available
ManufacturerMine Safety Appliances Company
StatusACTIVE
General Characteristics Item DescriptionALLUMINUM ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3020-00-563-5811803510 INTERCHANGEABLE
Gear
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5305-01-283-3603 INTERCHANGEABLE
Screw,cap,hexagon Head
6515-01-356-024680-3510 INTERCHANGEABLE
Hook,rectal
Sklar Corporation Dba Sklar Instruments
8335-01-648-8324 INTERCHANGEABLE
Die,cutting,footwear Component
Cross-Reference Index
Part NumberManufacturer
803510 PRIMARY Mine Safety Appliances Company (USA)
Related Parts
3020-00-563-5811INTERCHANGEABLE
GEAR
803510
5305-01-283-3603INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
6515-01-356-0246INTERCHANGEABLE
HOOK,RECTAL
80-3510
8335-01-648-8324INTERCHANGEABLE
DIE,CUTTING,FOOTWEAR COMPONENT

Frequently Asked Questions

What is NSN 4240-01-386-5493?

NSN 4240-01-386-5493 is a Admission Valve,regulator, manufactured by Mine Safety Appliances Company, classified under FSC 4240 (No Item Name Available). Status: active.

What are the part numbers for NSN 4240-01-386-5493?

NSN 4240-01-386-5493 has 1 cross-referenced part number: 803510 (Mine Safety Appliances Company).

What NSN replaces 4240-01-386-5493?

There are 4 known substitutes for 4240-01-386-5493: 3020-00-563-5811, 5305-01-283-3603, 6515-01-356-0246 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 803510?

Key specifications for 803510: Special Features: A SMALL ORIFICE THRU CENTER OF IT; General Characteristics Item Description: ALLUMINUM ALLOY; End Item Identification: PRESSURE DEMAND REGULATOR. 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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