PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7586-39-1-AASeat,valve

Twc the Valve Company, L.l.c. · NSN 4820-01-463-9227 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-463-9227 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-463-9227. Primary manufacturer part number: 7586-39-1-AA.
Features
  • Seat,valve — FSC 4820
  • Material: STEEL SEAT
  • Material Document and Classification: ASTM-A18FEATGUSED ON GATE VALVE DRAWING NO. N-11398-1 ASSN STD SINGLE MATERIAL RESPONSE SEAT
  • 5 verified cross-references
  • Primary manufacturer: Twc the Valve Company, L.l.c.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Steel Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-463-9227, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Twc the Valve Company, L.l.c.. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-463-9227
Primary Part Number7586-39-1-AA
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTwc the Valve Company, L.l.c.
StatusACTIVE
MaterialSTEEL SEAT
Material Document and ClassificationASTM-A18FEATGUSED ON GATE VALVE DRAWING NO. N-11398-1 ASSN STD SINGLE MATERIAL RESPONSE SEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
4820-00-419-04561503N-3IN/C-055831REV0/882049859 INTERCHANGEABLE
Valve,gate
William Powell Company, the Dba Powell Valve Div the Starflo Corporation
4820-01-114-4573 INTERCHANGEABLE
Seat,valve
5365-01-114-5949N-11398-1 PIECE 12 6IN INTERCHANGEABLE
Bushing,bonnet,valve
The Walworth Company
4820-01-157-0005N-11398-1 PC2 3IN INTERCHANGEABLE
Cap,valve
The Walworth Company
4820-01-160-5932 INTERCHANGEABLE
Disk,valve
4820-01-170-9220N-11398-1 PIECE 11 6IN INTERCHANGEABLE
Plate,packing Retainer
The Walworth Company
4820-01-234-79167589-39-1 INTERCHANGEABLE
Seat,valve
The Walworth Company
4820-01-234-79707515-8-15-1 INTERCHANGEABLE
Stem,fluid Valve
The Walworth Company
4820-01-234-80837515-5-Y-HF INTERCHANGEABLE
Disk,valve
The Walworth Company
4820-01-459-40400600127 INTERCHANGEABLE
Disk,valve
The Walworth Company
Cross-Reference Index
Part NumberManufacturer
N-11398 4IN PC5 CLAATRIM The Walworth Company (USA)
N-11398 4IN PC5 CLAATRIM Twc the Valve Company, L.l.c. (USA)
7586-39-1-AA PRIMARY Twc the Valve Company, L.l.c. (USA)
N-11398-1 The Walworth Company (USA)
7586-39-1-AA The Walworth Company (USA)
Related Parts
4820-00-419-0456INTERCHANGEABLE
VALVE,GATE
1503N-3IN/C-055831REV0/882049859
4820-01-114-4573INTERCHANGEABLE
SEAT,VALVE
5365-01-114-5949INTERCHANGEABLE
BUSHING,BONNET,VALVE
N-11398-1 PIECE 12 6IN
4820-01-157-0005INTERCHANGEABLE
CAP,VALVE
N-11398-1 PC2 3IN
4820-01-160-5932INTERCHANGEABLE
DISK,VALVE
4820-01-170-9220INTERCHANGEABLE
PLATE,PACKING RETAINER
N-11398-1 PIECE 11 6IN
4820-01-234-7916INTERCHANGEABLE
SEAT,VALVE
7589-39-1
4820-01-234-7970INTERCHANGEABLE
STEM,FLUID VALVE
7515-8-15-1
4820-01-234-8083INTERCHANGEABLE
DISK,VALVE
7515-5-Y-HF
4820-01-459-4040INTERCHANGEABLE
DISK,VALVE
0600127
3120-01-469-8989INTERCHANGEABLE
BUSHING,SLEEVE
0621521

Frequently Asked Questions

What is NSN 4820-01-463-9227?

NSN 4820-01-463-9227 is a Seat,valve, manufactured by Twc the Valve Company, L.l.c., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-463-9227?

NSN 4820-01-463-9227 has 5 cross-referenced part numbers: N-11398 4IN PC5 CLAATRIM (The Walworth Company), N-11398 4IN PC5 CLAATRIM (Twc the Valve Company, L.l.c.), 7586-39-1-AA (Twc the Valve Company, L.l.c.), N-11398-1 (The Walworth Company), 7586-39-1-AA (The Walworth Company).

What NSN replaces 4820-01-463-9227?

There are 11 known substitutes for 4820-01-463-9227: 4820-00-419-0456, 4820-01-114-4573, 5365-01-114-5949 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7586-39-1-AA?

Key specifications for 7586-39-1-AA: Material: STEEL SEAT; Material Document and Classification: ASTM-A18FEATGUSED ON GATE VALVE DRAWING NO. N-11398-1 ASSN STD SINGLE MATERIAL RESPONSE SEAT; End Item Identification: 11398-1. 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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