PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

TC-18Seat,valve

Circor Naval Solutions Llc Dba Warren Pumps · NSN 4820-00-949-7234 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-949-7234 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-949-7234. Primary manufacturer part number: TC-18.
Features
  • Seat,valve — FSC 4820
  • Material: COPPER ALLOY OVERALL
  • 3 verified cross-references
  • Primary manufacturer: Circor Naval Solutions Llc Dba Warren Pumps
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
  • Applications requiring Copper Alloy Overall construction
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-949-7234, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Circor Naval Solutions Llc Dba Warren Pumps. Government technical data includes 1 verified specification, 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-949-7234
Primary Part NumberTC-18
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerCircor Naval Solutions Llc Dba Warren Pumps
StatusACTIVE
MaterialCOPPER ALLOY OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5805-00-224-4962TC18 INTERCHANGEABLE
Repeater,telegraph
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5340-00-264-95235187965 INTERCHANGEABLE
Clamp,loop
U S Army Tank Automotive Command Amsta-Im-Mm
4320-00-816-4152UC-18 INTERCHANGEABLE
Cylinder Sleeve
Circor Naval Solutions Llc Dba Warren Pumps
5340-00-945-1402SJ11 INTERCHANGEABLE
Retainer,helical Compression Spr
Circor Naval Solutions Llc Dba Warren Pumps
5342-01-043-2072 INTERCHANGEABLE
Clamp Quick-Disconnect Support
4320-01-084-209011321 INTERCHANGEABLE
Gland,lower Cylinder Head
Rps-Fl, Inc. Dba Rps Inc
4820-01-192-4548XH-1 INTERCHANGEABLE
Body,valve
Circor Naval Solutions Llc Dba Warren Pumps
Cross-Reference Index
Part NumberManufacturer
TC-18 PRIMARY Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS5-2351 Circor Naval Solutions Llc Dba Warren Pumps (USA)
BS5-2351,PC.163 Circor Naval Solutions Llc Dba Warren Pumps (USA)
Related Parts
5805-00-224-4962INTERCHANGEABLE
REPEATER,TELEGRAPH
TC18
5340-00-264-9523INTERCHANGEABLE
CLAMP,LOOP
5187965
4320-00-816-4152INTERCHANGEABLE
CYLINDER SLEEVE
UC-18
5340-00-945-1402INTERCHANGEABLE
RETAINER,HELICAL COMPRESSION SPR
SJ11
5342-01-043-2072INTERCHANGEABLE
CLAMP QUICK-DISCONNECT SUPPORT
4320-01-084-2090INTERCHANGEABLE
GLAND,LOWER CYLINDER HEAD
11321
4820-01-192-4548INTERCHANGEABLE
BODY,VALVE
XH-1

Frequently Asked Questions

What is NSN 4820-00-949-7234?

NSN 4820-00-949-7234 is a Seat,valve, manufactured by Circor Naval Solutions Llc Dba Warren Pumps, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-00-949-7234?

NSN 4820-00-949-7234 has 3 cross-referenced part numbers: TC-18 (Circor Naval Solutions Llc Dba Warren Pumps), BS5-2351 (Circor Naval Solutions Llc Dba Warren Pumps), BS5-2351,PC.163 (Circor Naval Solutions Llc Dba Warren Pumps).

What NSN replaces 4820-00-949-7234?

There are 7 known substitutes for 4820-00-949-7234: 5805-00-224-4962, 5340-00-264-9523, 4320-00-816-4152 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of TC-18?

Key specifications for TC-18: End Item Identification: WARREN 6X7X12 VERTICAL SINGLE BILGE PUMP; Material: COPPER ALLOY OVERALL. 2 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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