PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1401DSeal,plain

Welch Vacuum Technology Inc · NSN 5330-01-476-2418 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-476-2418 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-476-2418. Primary manufacturer part number: 1401D.
Features
  • Seal,plain — FSC 5330
  • Material: RUBBER CHLOROPRENE CLASS CR OVERALL
  • 3 verified cross-references
  • Primary manufacturer: Welch Vacuum Technology Inc
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Chloroprene Class Cr Overall construction
General Description

The Seal,plain, cataloged under National Stock Number 5330-01-476-2418, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Welch Vacuum Technology Inc. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-476-2418
Primary Part Number1401D
Item NameSeal,plain
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerWelch Vacuum Technology Inc
StatusACTIVE
MaterialRUBBER CHLOROPRENE CLASS CR OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5940-00-280-06221419D-7-11 INTERCHANGEABLE
Terminal,stud
Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
6625-00-585-39917904758 INTERCHANGEABLE
Capacitance Standard,fixed
Us Army Aviation and Missile Command
5940-00-725-5026410437-1 INTERCHANGEABLE
Terminal,stud
Raytheon Company Dba Raytheon
5330-01-451-3077 INTERCHANGEABLE
Kit,shaft Seal
Cross-Reference Index
Part NumberManufacturer
1410D Welch Vacuum Technology Inc (USA)
1401D PRIMARY Welch Vacuum Technology Inc (USA)
41-2069 Zf Industrieantriebe Witten Gmbh (DEU)
Related Parts
5940-00-280-0622INTERCHANGEABLE
TERMINAL,STUD
1419D-7-11
6625-00-585-3991INTERCHANGEABLE
CAPACITANCE STANDARD,FIXED
7904758
5940-00-725-5026INTERCHANGEABLE
TERMINAL,STUD
410437-1
5330-01-451-3077INTERCHANGEABLE
KIT,SHAFT SEAL

Frequently Asked Questions

What is NSN 5330-01-476-2418?

NSN 5330-01-476-2418 is a Seal,plain, manufactured by Welch Vacuum Technology Inc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-476-2418?

NSN 5330-01-476-2418 has 3 cross-referenced part numbers: 1410D (Welch Vacuum Technology Inc), 1401D (Welch Vacuum Technology Inc), 41-2069 (Zf Industrieantriebe Witten Gmbh).

What NSN replaces 5330-01-476-2418?

There are 4 known substitutes for 5330-01-476-2418: 5940-00-280-0622, 6625-00-585-3991, 5940-00-725-5026 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1401D?

Key specifications for 1401D: Material: RUBBER CHLOROPRENE CLASS CR OVERALL; End Item Identification: CRR-3G PUMP, VACUUM, 126-34858-000, 535 RPM, 5.6 CFM, DISCHARGE PRESSURE 265 PSI MAX G. 2 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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