PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

991-058Parts Kit,valve

Sun Hydraulics Corporation · NSN 4820-01-600-5400 · FSC 4820 · No Item Name Available
Verified by PartsTable
NSN 4820-01-600-5400 — this item is cataloged by the U.S. Government under National Stock Number 4820-01-600-5400. Primary manufacturer part number: 991-058.
Features
  • Parts Kit,valve — FSC 4820
  • Nonsupply Items and Quantities: 375-034 NUT 1; 550-039 O-RING 2; 550-040 O-RING 1; 250-540 SPACER 1
  • Component Quantity: 5
  • 1 verified cross-reference
  • Primary manufacturer: Sun Hydraulics Corporation
Applications
  • Flow control in piping systems
  • Pressure regulation
  • Steam and fluid isolation
General Description

The Parts Kit,valve, cataloged under National Stock Number 4820-01-600-5400, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Sun Hydraulics Corporation. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4820-01-600-5400
Primary Part Number991-058
Item NameParts Kit,valve
FSC / FSG4820 / 48 — No Item Name Available
ManufacturerSun Hydraulics Corporation
StatusACTIVE
Nonsupply Items and Quantities375-034 NUT 1; 550-039 O-RING 2; 550-040 O-RING 1; 250-540 SPACER 1
Component Quantity5
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5330-00-599-110399-1058 INTERCHANGEABLE
Gasket
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
6545-01-467-54160001 INTERCHANGEABLE
Medical Airway Management Set
Servicesource Inc
Cross-Reference Index
Part NumberManufacturer
991-058 PRIMARY Sun Hydraulics Corporation (USA)
Related Parts
5330-00-599-1103INTERCHANGEABLE
GASKET
99-1058
6545-01-467-5416INTERCHANGEABLE
MEDICAL AIRWAY MANAGEMENT SET
0001

Frequently Asked Questions

What is NSN 4820-01-600-5400?

NSN 4820-01-600-5400 is a Parts Kit,valve, manufactured by Sun Hydraulics Corporation, classified under FSC 4820 (No Item Name Available). Status: active.

What are the part numbers for NSN 4820-01-600-5400?

NSN 4820-01-600-5400 has 1 cross-referenced part number: 991-058 (Sun Hydraulics Corporation).

What NSN replaces 4820-01-600-5400?

There are 2 known substitutes for 4820-01-600-5400: 5330-00-599-1103, 6545-01-467-5416. Verify interchangeability with system specifications before substitution.

What are the specifications of 991-058?

Key specifications for 991-058: Nonsupply Items and Quantities: 375-034 NUT 1; 550-039 O-RING 2; 550-040 O-RING 1; 250-540 SPACER 1; Component Quantity: 5; Part Name Assigned by Controlling Agency: WEATHERIZED COIL SEAL KIT; Special Features: USED ON VALVE HEX SIZE 7/8 INCH; VALVE INSTALLATION TORQUE IS 22-30 LBF FT IN. 4 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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