PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21428Valve,flow Control

Gaylord Marine Services, Inc. · NSN 4820-01-687-4966 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-687-4966 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-687-4966. Primary manufacturer part number: 21428.
Features
  • Valve,flow Control — FSC 4820
  • 3 verified cross-references
  • Primary manufacturer: Gaylord Marine Services, Inc.
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Valve,flow Control, cataloged under National Stock Number 4820-01-687-4966, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Gaylord Marine Services, Inc.. This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameValve,flow Control
FSC / FSG4820 — No Item Name Available (FSG 48)
ManufacturersGaylord Marine Services, Inc. (CAGE 1T1B2)
Technical Specifications
ParameterValue
NSN4820-01-687-4966
Primary Part Number21428
Item NameValve,flow Control
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerGaylord Marine Services, Inc.
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5815-00-109-5738180208 INTERCHANGEABLE
Keytop,keyboard
Telemechanics Inc
5935-00-118-7862 INTERCHANGEABLE
Jack,tip
3110-00-542-9384180208 INTERCHANGEABLE
Bearing,ball,annular
Woodward, Inc. Div Fuel Systems and Controls
5895-00-848-9126 INTERCHANGEABLE
Transformer Cable,t
5999-00-969-142621-428 INTERCHANGEABLE
Contact,electrical
Eaton Corp Opns & Technical Center
6105-01-248-796721428 INTERCHANGEABLE
Motor,alternating Current
Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
4720-01-517-0485 INTERCHANGEABLE
Hose Assembly,nonmetallic
2090-01-623-716921-428 INTERCHANGEABLE
Launch and Recovery Subsystem,un
Hii Unmanned Systems, Inc
6110-01-652-9391 INTERCHANGEABLE
Control,generator
5930-01-686-123523842 INTERCHANGEABLE
Switch,thermostatic
Gaylord Marine Services, Inc.
Cross-Reference Index
Part NumberManufacturer
21428 PRIMARY Gaylord Marine Services, Inc. (USA)
18-0208 REV 06 SHT 04 ITEM #7 Gaylord Marine Services, Inc. (USA)
18-0208 Gaylord Marine Services, Inc. (USA)
Related Parts
5815-00-109-5738INTERCHANGEABLE
KEYTOP,KEYBOARD
180208
5935-00-118-7862INTERCHANGEABLE
JACK,TIP
3110-00-542-9384INTERCHANGEABLE
BEARING,BALL,ANNULAR
180208
5895-00-848-9126INTERCHANGEABLE
TRANSFORMER CABLE,T
5999-00-969-1426INTERCHANGEABLE
CONTACT,ELECTRICAL
21-428
6105-01-248-7967INTERCHANGEABLE
MOTOR,ALTERNATING CURRENT
21428
4720-01-517-0485INTERCHANGEABLE
HOSE ASSEMBLY,NONMETALLIC
2090-01-623-7169INTERCHANGEABLE
LAUNCH AND RECOVERY SUBSYSTEM,UN
21-428
6110-01-652-9391INTERCHANGEABLE
CONTROL,GENERATOR
5930-01-686-1235INTERCHANGEABLE
SWITCH,THERMOSTATIC
23842
5920-01-687-0241INTERCHANGEABLE
FUSE,CARTRIDGE
LP-CC-3-1/2
5930-01-687-2372INTERCHANGEABLE
SWITCH,LIQUID LEVEL
12325

Frequently Asked Questions

What is NSN 4820-01-687-4966?

NSN 4820-01-687-4966 is a Valve,flow Control, manufactured by Gaylord Marine Services, Inc., classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-687-4966?

NSN 4820-01-687-4966 has 3 cross-referenced part numbers: 21428 (Gaylord Marine Services, Inc.), 18-0208 REV 06 SHT 04 ITEM #7 (Gaylord Marine Services, Inc.), 18-0208 (Gaylord Marine Services, Inc.).

What NSN replaces 4820-01-687-4966?

There are 12 known substitutes for 4820-01-687-4966: 5815-00-109-5738, 5935-00-118-7862, 3110-00-542-9384 and 9 more. Verify interchangeability with system specifications before substitution.

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