PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3439Seat,valve

Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor · NSN 4820-00-364-8484 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-00-364-8484 — this item is cataloged by the U.S. Government under National Stock Number 4820-00-364-8484. Primary manufacturer part number: 3439.
Features
  • Seat,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Seat,valve, cataloged under National Stock Number 4820-00-364-8484, 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. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-00-364-8484
Primary Part Number3439
Item NameSeat,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerQuincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
2825-00-146-01283439 INTERCHANGEABLE
Bucket
Northrop Grumman Systems Corporation Div Marine Systems
5315-00-341-88473439 INTERCHANGEABLE
Pin,drive,power Actuated
Illinois Tool Works Inc
5310-00-737-8340203439 INTERCHANGEABLE
Washer,retaining
Clark Material Handling Company
6640-00-861-6210 INTERCHANGEABLE
Carrier,bottle
5977-01-172-24763439 INTERCHANGEABLE
Holder,electrical Contact Brush
Archer Engineering Inc
5340-01-198-848916560 INTERCHANGEABLE
Cap,protective,dust and Moisture
Stanadyne Corporation Dba Stanadyne Diesel Systems Div Diesel Systems
6515-01-322-20313439 INTERCHANGEABLE
Blade,arthroscopic,surgical
Dyonics Inc Sub of William H Rorer Inc
5305-01-533-51733439 INTERCHANGEABLE
Screw,shoulder
General Dynamics-Ots, Inc. Div Ordnance and Tactical Systems
5306-01-553-88393439 INTERCHANGEABLE
Bolt,machine
Fasteners Inc.
Cross-Reference Index
Part NumberManufacturer
3439 PRIMARY Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor (USA)
Related Parts
2825-00-146-0128INTERCHANGEABLE
BUCKET
3439
5315-00-341-8847INTERCHANGEABLE
PIN,DRIVE,POWER ACTUATED
3439
5310-00-737-8340INTERCHANGEABLE
WASHER,RETAINING
203439
6640-00-861-6210INTERCHANGEABLE
CARRIER,BOTTLE
5977-01-172-2476INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
3439
5340-01-198-8489INTERCHANGEABLE
CAP,PROTECTIVE,DUST AND MOISTURE
16560
6515-01-322-2031INTERCHANGEABLE
BLADE,ARTHROSCOPIC,SURGICAL
3439
5305-01-533-5173INTERCHANGEABLE
SCREW,SHOULDER
3439
5306-01-553-8839INTERCHANGEABLE
BOLT,MACHINE
3439

Frequently Asked Questions

What is NSN 4820-00-364-8484?

NSN 4820-00-364-8484 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: active.

What are the part numbers for NSN 4820-00-364-8484?

NSN 4820-00-364-8484 has 1 cross-referenced part number: 3439 (Quincy Compressor Division of Coltec Industries Inc Dba Quincy Compressor Div Quincy Compressor).

What NSN replaces 4820-00-364-8484?

There are 9 known substitutes for 4820-00-364-8484: 2825-00-146-0128, 5315-00-341-8847, 5310-00-737-8340 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3439?

Key specifications for 3439: End Item Identification: AIR COMPRESSOR,QUINCY,DIV OF COLT IND,MDL 325. 1 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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