PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21403Gasket

Liftec Inc Div Liftec, Inc. · NSN 5330-00-526-8157 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-526-8157 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-526-8157. Primary manufacturer part number: 21403.
Features
  • Gasket — FSC 5330
  • Cross-Sectional Thickness: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
  • Outside Diameter: 2.929 INCHES MINIMUM AND 2.939 INCHES MAXIMUM IN
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
  • Aperture Diameter: 2.765 INCHES MINIMUM AND 2.775 INCHES MAXIMUM IN
  • Style Designator: CIRCULAR
  • Material Document and Classification: HH-G-156,CL A FED SPEC ALL MATERIAL RESPONSES OVERALL
  • Material: RUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER POLYISOPRENE SYNTHETIC CLASS IR OVERALL
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Polyisoprene Natural Class Nr or Rubber Polyisoprene Synthetic Class Ir Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-526-8157, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Liftec Inc Div Liftec, Inc.. Government technical data includes 7 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-526-8157
Primary Part Number21403
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerLiftec Inc Div Liftec, Inc.
StatusACTIVE
Cross-Sectional Thickness0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN
Outside Diameter2.929 INCHES MINIMUM AND 2.939 INCHES MAXIMUM IN
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Aperture Diameter2.765 INCHES MINIMUM AND 2.775 INCHES MAXIMUM IN
Style DesignatorCIRCULAR
Material Document and ClassificationHH-G-156,CL A FED SPEC ALL MATERIAL RESPONSES OVERALL
MaterialRUBBER POLYISOPRENE NATURAL CLASS NR OR RUBBER POLYISOPRENE SYNTHETIC CLASS IR OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5306-00-274-1917142419 INTERCHANGEABLE
Bolt,machine
Johnson Controls Navy Systems, Llc
3040-01-198-747921403 INTERCHANGEABLE
Head,linear Actuating Cylinder
Moog Inc. Dba Ampac-Isp Corp
4820-01-200-061021403 INTERCHANGEABLE
Seat,valve
Barksdale, Inc
6240-01-313-6860F15T8-18/SPECTRUMLITE-PL/HD17M INTERCHANGEABLE
Lamp,fluorescent
Westron Corporation Dba Westron Lighting
4720-01-358-213021403 INTERCHANGEABLE
Hose,preformed
Gates Corporation
2805-01-538-286121403 INTERCHANGEABLE
Trim Tab,gearcase
Willard Marine, Inc.
Cross-Reference Index
Part NumberManufacturer
21403 PRIMARY Liftec Inc Div Liftec, Inc. (USA)
Related Parts
5306-00-274-1917INTERCHANGEABLE
BOLT,MACHINE
142419
3040-01-198-7479INTERCHANGEABLE
HEAD,LINEAR ACTUATING CYLINDER
21403
4820-01-200-0610INTERCHANGEABLE
SEAT,VALVE
21403
6240-01-313-6860INTERCHANGEABLE
LAMP,FLUORESCENT
F15T8-18/SPECTRUMLITE-PL/HD17M
4720-01-358-2130INTERCHANGEABLE
HOSE,PREFORMED
21403
2805-01-538-2861INTERCHANGEABLE
TRIM TAB,GEARCASE
21403

Frequently Asked Questions

What is NSN 5330-00-526-8157?

NSN 5330-00-526-8157 is a Gasket, manufactured by Liftec Inc Div Liftec, Inc., classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-526-8157?

NSN 5330-00-526-8157 has 1 cross-referenced part number: 21403 (Liftec Inc Div Liftec, Inc.).

What NSN replaces 5330-00-526-8157?

There are 6 known substitutes for 5330-00-526-8157: 5306-00-274-1917, 3040-01-198-7479, 4820-01-200-0610 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21403?

Key specifications for 21403: Cross-Sectional Thickness: 0.060 INCHES MINIMUM AND 0.070 INCHES MAXIMUM IN; Outside Diameter: 2.929 INCHES MINIMUM AND 2.939 INCHES MAXIMUM IN; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Aperture Diameter: 2.765 INCHES MINIMUM AND 2.775 INCHES MAXIMUM IN. 7 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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