PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5484Seat,valve

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor · NSN 4820-00-852-3707 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-852-3707 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-852-3707. Primary manufacturer part number: 5484.
Features
  • Seat,valve — FSC 4820
  • Under Flange Height: 0.356 INCHES NOMINAL IN
  • Material: COPPER ALLOY OVERALL
  • Flange Diameter: 0.860 INCHES NOMINAL IN
  • Thread Series Designator: UN SINGLE THREADED PORTION
  • Thread Length: 0.225 INCHES NOMINAL SINGLE THREADED PORTION IN
  • Seating Surface Shape: FLAT
  • Flange Seat to Disk End Height: 0.190 INCHES NOMINAL IN
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 4820-00-852-3707, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4820-00-852-3707
Primary Part Number5484
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerQuincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
StatusCANCELLED
Under Flange Height0.356 INCHES NOMINAL IN
MaterialCOPPER ALLOY OVERALL
Flange Diameter0.860 INCHES NOMINAL IN
Thread Series DesignatorUN SINGLE THREADED PORTION
Thread Length0.225 INCHES NOMINAL SINGLE THREADED PORTION IN
Seating Surface ShapeFLAT
Flange Seat to Disk End Height0.190 INCHES NOMINAL IN
Nominal Thread Size0.688 INCHES SINGLE THREADED PORTION IN
Thread Class3A SINGLE THREADED PORTION A
Style DesignatorTHREADED FLANGED
Thread Quantity Per Inch16 SINGLE THREADED PORTION
FSC Application DataCOMPRESSOR,RECIPROCATING
Body Inside Diameter0.500 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
3030-00-264-3065 INTERCHANGEABLE
Belt,v
5330-00-286-6816471689 INTERCHANGEABLE
Seal,plain Encased
The Timken Company Dba Timken Power Systems Ms
1650-00-464-6314416220902 INTERCHANGEABLE
Parts Kit,reservoir
Hydro-Aire Aerospace Corp
4320-00-757-87855484 INTERCHANGEABLE
Valve,manifold
Dragon Valves Inc
3110-01-012-89950143553 INTERCHANGEABLE
Bearing,ball,thrust
Hyster-Yale Group, Inc. Dba Yale Materials Handling
5330-01-023-44515484 INTERCHANGEABLE
Gasket
Sealcraft Corporation
6515-01-036-04275484 INTERCHANGEABLE
Syringe,hypodermic
Becton, Dickinson and Co Dba Becton Dickinson & Co
5998-01-195-41385484 INTERCHANGEABLE
Circuit Card Assembly
Data Device Corp Dba Beta Transformer Technology
6145-01-290-27365484C INTERCHANGEABLE
Cable,special Purpose,electrical
Belden, Inc.
3040-01-340-16195484 INTERCHANGEABLE
Spindle,mechanically Actuated
Ke Marine Inc Dba Ke Marine Inc
Cross-Reference Index
Part NumberManufacturer
4SC1045 Striegel Supply, Inc. Dba Striegel Supply Inc (USA)
5484 PRIMARY Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
5484 Triumph Engine Control Systems Llc (USA)
Related Parts
3030-00-264-3065INTERCHANGEABLE
BELT,V
5330-00-286-6816INTERCHANGEABLE
SEAL,PLAIN ENCASED
471689
1650-00-464-6314INTERCHANGEABLE
PARTS KIT,RESERVOIR
416220902
4320-00-757-8785INTERCHANGEABLE
VALVE,MANIFOLD
5484
3110-01-012-8995INTERCHANGEABLE
BEARING,BALL,THRUST
0143553
5330-01-023-4451INTERCHANGEABLE
GASKET
5484
6515-01-036-0427INTERCHANGEABLE
SYRINGE,HYPODERMIC
5484
5998-01-195-4138INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
5484
6145-01-290-2736INTERCHANGEABLE
CABLE,SPECIAL PURPOSE,ELECTRICAL
5484C
3040-01-340-1619INTERCHANGEABLE
SPINDLE,MECHANICALLY ACTUATED
5484

Frequently Asked Questions

What is NSN 4820-00-852-3707?

NSN 4820-00-852-3707 is a Seat,valve, manufactured by Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor, classified under FSC 4820 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 4820-00-852-3707?

NSN 4820-00-852-3707 has 3 cross-referenced part numbers: 4SC1045 (Striegel Supply, Inc. Dba Striegel Supply Inc), 5484 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor), 5484 (Triumph Engine Control Systems Llc).

What NSN replaces 4820-00-852-3707?

There are 10 known substitutes for 4820-00-852-3707: 3030-00-264-3065, 5330-00-286-6816, 1650-00-464-6314 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5484?

Key specifications for 5484: Special Features: FLANGED PORTION HAS HEX WRENCHING FEATURE 0.758 IN. ACROSS FLATS IN; Under Flange Height: 0.356 INCHES NOMINAL IN; Material: COPPER ALLOY OVERALL; Flange Diameter: 0.860 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4820-00-852-3707 still in active supply?

NSN 4820-00-852-3707 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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