PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1666-4Repair Kit,valve

Star Sprinkler Corp · NSN 4820-01-553-5044 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-553-5044 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-553-5044. Primary manufacturer part number: 1666-4.
Features
  • Repair Kit,valve — FSC 4820
  • 1 verified cross-reference
  • Primary manufacturer: Star Sprinkler Corp
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Repair Kit,valve, cataloged under National Stock Number 4820-01-553-5044, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Star Sprinkler Corp. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-553-5044
Primary Part Number1666-4
Item NameRepair Kit,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerStar Sprinkler Corp
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
9540-00-179-9610 INTERCHANGEABLE
Angle,structural
5330-00-190-426716-664 INTERCHANGEABLE
Gasket
Dresser Industries Inc Leroi Div
1650-00-654-809716664 INTERCHANGEABLE
Cap,piston,rear End
Moog Inc
5310-00-904-663616664 INTERCHANGEABLE
Washer,flat
Mission Systems Orchard Park Inc
6515-01-584-129101.006.002 INTERCHANGEABLE
Plate Set,bone,compression
Depuy Synthes Sales Inc Dba Depuy Synthes Trauma Div Depuy Synthes Sales, Inc., D/b/a Depuy Synthes Trauma
Cross-Reference Index
Part NumberManufacturer
1666-4 PRIMARY Star Sprinkler Corp (USA)
Related Parts
9540-00-179-9610INTERCHANGEABLE
ANGLE,STRUCTURAL
5330-00-190-4267INTERCHANGEABLE
GASKET
16-664
1650-00-654-8097INTERCHANGEABLE
CAP,PISTON,REAR END
16664
5310-00-904-6636INTERCHANGEABLE
WASHER,FLAT
16664
6515-01-584-1291INTERCHANGEABLE
PLATE SET,BONE,COMPRESSION
01.006.002

Frequently Asked Questions

What is NSN 4820-01-553-5044?

NSN 4820-01-553-5044 is a Repair Kit,valve, manufactured by Star Sprinkler Corp, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-553-5044?

NSN 4820-01-553-5044 has 1 cross-referenced part number: 1666-4 (Star Sprinkler Corp).

What NSN replaces 4820-01-553-5044?

There are 5 known substitutes for 4820-01-553-5044: 9540-00-179-9610, 5330-00-190-4267, 1650-00-654-8097 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1666-4?

Key specifications for 1666-4: Special Features: KIT CONSISTS OF 1 EACH COVER GASKET AND SEAT GASKET; FOR GRUNAU MODEL A ALARM VALVE, 4 INCH IN. 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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