PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

991-001Seal,antipilferage

Sun Hydraulics Corporation · NSN 5340-01-562-9237 · FSC 5340 · No Item Name Available
Verified by PartsTable
NSN 5340-01-562-9237 — this item is cataloged by the U.S. Government under National Stock Number 5340-01-562-9237. Primary manufacturer part number: 991-001.
Features
  • Seal,antipilferage — FSC 5340
  • Hole Quantity: 1
  • Height: 1.380 INCHES NOMINAL IN
  • Material: STEEL
  • Shape: CIRCULAR
  • 1 verified cross-reference
  • Primary manufacturer: Sun Hydraulics Corporation
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel construction
General Description

The Seal,antipilferage, cataloged under National Stock Number 5340-01-562-9237, is classified within Federal Supply Class 5340 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sun Hydraulics Corporation. Government technical data includes 4 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5340-01-562-9237
Primary Part Number991-001
Item NameSeal,antipilferage
FSC / FSG5340 / 53 — No Item Name Available
ManufacturerSun Hydraulics Corporation
StatusACTIVE
Hole Quantity1
Height1.380 INCHES NOMINAL IN
MaterialSTEEL
ShapeCIRCULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5340-01-499-80857053486 SUCCESSOR
Cap,protective,dust and Moisture
Naval Sea Systems Command
6505-01-462-5064 INTERCHANGEABLE
Potassium Chloride in Dextrose I
6635-01-547-702699100-1 INTERCHANGEABLE
Kit,airframe,ndi
United Western Technologies Corp.
Cross-Reference Index
Part NumberManufacturer
991-001 PRIMARY Sun Hydraulics Corporation (USA)
Related Parts
5340-01-499-8085SUCCESSOR
CAP,PROTECTIVE,DUST AND MOISTURE
7053486
6505-01-462-5064INTERCHANGEABLE
POTASSIUM CHLORIDE IN DEXTROSE I
6635-01-547-7026INTERCHANGEABLE
KIT,AIRFRAME,NDI
99100-1

Frequently Asked Questions

What is NSN 5340-01-562-9237?

NSN 5340-01-562-9237 is a Seal,antipilferage, manufactured by Sun Hydraulics Corporation, classified under FSC 5340 (No Item Name Available). Status: active.

What are the part numbers for NSN 5340-01-562-9237?

NSN 5340-01-562-9237 has 1 cross-referenced part number: 991-001 (Sun Hydraulics Corporation).

What NSN replaces 5340-01-562-9237?

There are 3 known substitutes for 5340-01-562-9237: 5340-01-499-8085, 6505-01-462-5064, 6635-01-547-7026. Verify interchangeability with system specifications before substitution.

What are the specifications of 991-001?

Key specifications for 991-001: Hole Quantity: 1; Height: 1.380 INCHES NOMINAL IN; Material: STEEL; Shape: CIRCULAR. 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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