PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A1347Seat,valve

Hunt Valve Company, Inc. · NSN 4820-01-615-6531 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-615-6531 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-615-6531. Primary manufacturer part number: A1347.
Features
  • Seat,valve — FSC 4820
  • Material: COPPER ALLOY 922 OVERALL
  • Material Document and Classification: ASTM-B-61 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
  • 2 verified cross-references
  • Primary manufacturer: Hunt Valve Company, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy 922 Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-615-6531, 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.. 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-615-6531
Primary Part NumberA1347
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerHunt Valve Company, Inc.
StatusACTIVE
MaterialCOPPER ALLOY 922 OVERALL
Material Document and ClassificationASTM-B-61 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3120-00-424-9639A1347 INTERCHANGEABLE
Bushing,sleeve
Hartzell Propeller Llc
2590-00-703-7380 INTERCHANGEABLE
Lock,vehicular Swit
6610-00-888-3176A1347-1 INTERCHANGEABLE
Shaft Assembly,rock
Aerosonic Llc
4820-01-241-4137 INTERCHANGEABLE
Seat,valve
Cross-Reference Index
Part NumberManufacturer
D1976 PC NO 10 3.0IN Hunt Valve Company, Inc. (USA)
A1347 PRIMARY Hunt Valve Company, Inc. (USA)
Related Parts
3120-00-424-9639INTERCHANGEABLE
BUSHING,SLEEVE
A1347
2590-00-703-7380INTERCHANGEABLE
LOCK,VEHICULAR SWIT
6610-00-888-3176INTERCHANGEABLE
SHAFT ASSEMBLY,ROCK
A1347-1
4820-01-241-4137INTERCHANGEABLE
SEAT,VALVE

Frequently Asked Questions

What is NSN 4820-01-615-6531?

NSN 4820-01-615-6531 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 4820-01-615-6531?

NSN 4820-01-615-6531 has 2 cross-referenced part numbers: D1976 PC NO 10 3.0IN (Hunt Valve Company, Inc.), A1347 (Hunt Valve Company, Inc.).

What NSN replaces 4820-01-615-6531?

There are 4 known substitutes for 4820-01-615-6531: 3120-00-424-9639, 2590-00-703-7380, 6610-00-888-3176 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A1347?

Key specifications for A1347: End Item Identification: VALVE,BALL,3 INCH IN; Part Name Assigned by Controlling Agency: SEAT,RING; Material: COPPER ALLOY 922 OVERALL; Material Document and Classification: ASTM-B-61 NATIONAL SPEC SINGLE MATERIAL RESPONSE OVERALL. 4 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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