PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

249-00Seat,valve

Trac Regulator Co., Inc. Dba Trac Regulator Co Inc · NSN 4820-01-593-5807 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-593-5807 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-593-5807. Primary manufacturer part number: 249-00.
Features
  • Seat,valve — FSC 4820
  • Material: COPPER ALLOY SEAT
  • Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE SEAT
  • 3 verified cross-references
  • Primary manufacturer: Trac Regulator Co., Inc. Dba Trac Regulator Co Inc
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Seat construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-01-593-5807, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Trac Regulator Co., Inc. Dba Trac Regulator Co Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-593-5807
Primary Part Number249-00
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerTrac Regulator Co., Inc. Dba Trac Regulator Co Inc
StatusACTIVE
MaterialCOPPER ALLOY SEAT
Material Document and ClassificationMIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE SEAT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2520-00-237-36022-4900 INTERCHANGEABLE
Parts Kit,universal Joint
Neapco Inc
5930-00-256-8652K-850856 INTERCHANGEABLE
Switch,push
L3 Technologies, Inc. Div Communication Systems-East
4730-00-277-82541860863 INTERCHANGEABLE
Cup,grease
Borgwarner Pds (anderson), L.l.c.
4130-00-349-4312V43CS1 INTERCHANGEABLE
Valve,water Regulat
Johnson Controls Inc Control Products Div
5965-00-553-6898SM-C-134003 INTERCHANGEABLE
Headband,headset
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5365-01-372-13772490.0 INTERCHANGEABLE
Spacer,sleeve
Weidmueller Terminations Inc
4320-01-463-487624900 INTERCHANGEABLE
Sleeve,shaft,pump
Industrial Technologies and Services Llc
5120-01-702-436924900 INTERCHANGEABLE
Bit Set,screwdriver
Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
Cross-Reference Index
Part NumberManufacturer
249-00 PRIMARY Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40143-9 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
40143-9 PC 19 Trac Regulator Co., Inc. Dba Trac Regulator Co Inc (USA)
Related Parts
2520-00-237-3602INTERCHANGEABLE
PARTS KIT,UNIVERSAL JOINT
2-4900
5930-00-256-8652INTERCHANGEABLE
SWITCH,PUSH
K-850856
4730-00-277-8254INTERCHANGEABLE
CUP,GREASE
1860863
4130-00-349-4312INTERCHANGEABLE
VALVE,WATER REGULAT
V43CS1
5965-00-553-6898INTERCHANGEABLE
HEADBAND,HEADSET
SM-C-134003
5365-01-372-1377INTERCHANGEABLE
SPACER,SLEEVE
2490.0
4320-01-463-4876INTERCHANGEABLE
SLEEVE,SHAFT,PUMP
24900
5120-01-702-4369INTERCHANGEABLE
BIT SET,SCREWDRIVER
24900

Frequently Asked Questions

What is NSN 4820-01-593-5807?

NSN 4820-01-593-5807 is a Seat,valve, manufactured by Trac Regulator Co., Inc. Dba Trac Regulator Co Inc, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-593-5807?

NSN 4820-01-593-5807 has 3 cross-referenced part numbers: 249-00 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40143-9 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc), 40143-9 PC 19 (Trac Regulator Co., Inc. Dba Trac Regulator Co Inc).

What NSN replaces 4820-01-593-5807?

There are 8 known substitutes for 4820-01-593-5807: 2520-00-237-3602, 5930-00-256-8652, 4730-00-277-8254 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 249-00?

Key specifications for 249-00: End Item Identification: 4820-01-206-4446 VALVE,REGULATING,TEMPERATURE; Material: COPPER ALLOY SEAT; Material Document and Classification: MIL-B-16541 MIL SPEC SINGLE MATERIAL RESPONSE SEAT. 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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