PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

15-31-6Seat,valve

Hunt Valve Company, Inc. · NSN 4820-01-503-2150 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-503-2150 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-503-2150. Primary manufacturer part number: 15-31-6.
Features
  • Seat,valve — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Hunt Valve Company, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-503-2150, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Hunt Valve Company, Inc.. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameSeat,valve
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersPima Valve, Llc (CAGE 30263); Hunt Valve Company, Inc. (CAGE 11859)
Technical Specifications
ParameterValue
NSN4820-01-503-2150
Primary Part Number15-31-6
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5940-00-082-4662 INTERCHANGEABLE
Terminal Board
6625-00-251-9884 INTERCHANGEABLE
Signal Generator Subassembly
4730-00-359-3872 INTERCHANGEABLE
Plug,pipe
5961-00-494-8989 INTERCHANGEABLE
Transistor
5315-00-597-2503 INTERCHANGEABLE
Pin,spring
2910-00-778-6077153-0263 INTERCHANGEABLE
Bracket Choke Rod
Cummins Power Generation Inc.
5930-01-083-906915316 INTERCHANGEABLE
Switch,pressure
Hydra-Electric Company Dba Hydra-Electric Co
5330-01-257-6033NW15316 INTERCHANGEABLE
Gasket
Tld Wollard Llc
5330-01-374-3659153-01600 INTERCHANGEABLE
Packing,preformed
Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems
Cross-Reference Index
Part NumberManufacturer
15-31-6 Pima Valve, Llc (USA)
15-31 Pima Valve, Llc (USA)
15-31-6 PRIMARY Hunt Valve Company, Inc. (USA)
Related Parts
5940-00-082-4662INTERCHANGEABLE
TERMINAL BOARD
6625-00-251-9884INTERCHANGEABLE
SIGNAL GENERATOR SUBASSEMBLY
4730-00-359-3872INTERCHANGEABLE
PLUG,PIPE
5961-00-494-8989INTERCHANGEABLE
TRANSISTOR
5315-00-597-2503INTERCHANGEABLE
PIN,SPRING
2910-00-778-6077INTERCHANGEABLE
BRACKET CHOKE ROD
153-0263
5930-01-083-9069INTERCHANGEABLE
SWITCH,PRESSURE
15316
5330-01-257-6033INTERCHANGEABLE
GASKET
NW15316
5330-01-374-3659INTERCHANGEABLE
PACKING,PREFORMED
153-01600

Frequently Asked Questions

What is NSN 4820-01-503-2150?

NSN 4820-01-503-2150 is a Seat,valve, manufactured by Hunt Valve Company, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-503-2150?

NSN 4820-01-503-2150 has 3 cross-referenced part numbers: 15-31-6 (Pima Valve, Llc), 15-31 (Pima Valve, Llc), 15-31-6 (Hunt Valve Company, Inc.).

What NSN replaces 4820-01-503-2150?

There are 9 known substitutes for 4820-01-503-2150: 5940-00-082-4662, 6625-00-251-9884, 4730-00-359-3872 and 6 more. Verify interchangeability with system specifications before substitution.

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