PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

55AC4421Gasket

Fwd Seagrave Holdings Lp · NSN 5330-00-297-7246 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-297-7246 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-297-7246. Primary manufacturer part number: 55AC4421.
Features
  • Gasket — FSC 5330
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
  • Cross-Sectional Thickness: 0.281 INCHES NOMINAL IN
  • Style Designator: CIRCULAR
  • Material Document and Classification: HH-C-576 CL 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Material: CORK AND RESIN NATURAL OR RESIN SYNTHETIC OVERALL
  • Outside Diameter: 2.000 INCHES NOMINAL IN
  • Aperture Diameter: 1.464 INCHES MINIMUM AND 1.474 INCHES MAXIMUM IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Cork and Resin Natural or Resin Synthetic Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-297-7246, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Fwd Seagrave Holdings Lp. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-297-7246
Primary Part Number55AC4421
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerFwd Seagrave Holdings Lp
StatusACTIVE
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Cross-Sectional Thickness0.281 INCHES NOMINAL IN
Style DesignatorCIRCULAR
Material Document and ClassificationHH-C-576 CL 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialCORK AND RESIN NATURAL OR RESIN SYNTHETIC OVERALL
Outside Diameter2.000 INCHES NOMINAL IN
Aperture Diameter1.464 INCHES MINIMUM AND 1.474 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
4540-00-004-753420-3504 INTERCHANGEABLE
Heater,electronic Equipment
Honeywell International Inc. Dba Honeywell Div Sensing and Control
Cross-Reference Index
Part NumberManufacturer
55AC4421 PRIMARY Fwd Seagrave Holdings Lp (USA)
203504 Joy Global Underground Mining Llc (USA)
UC4421 PRIMARY Dresser, Llc (USA)
Related Parts
4540-00-004-7534INTERCHANGEABLE
HEATER,ELECTRONIC EQUIPMENT
20-3504

Frequently Asked Questions

What is NSN 5330-00-297-7246?

NSN 5330-00-297-7246 is a Gasket, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-297-7246?

NSN 5330-00-297-7246 has 3 cross-referenced part numbers: 55AC4421 (Fwd Seagrave Holdings Lp), 203504 (Joy Global Underground Mining Llc), UC4421 (Dresser, Llc).

What NSN replaces 5330-00-297-7246?

There is 1 known substitute for 5330-00-297-7246: 4540-00-004-7534. Verify interchangeability with system specifications before substitution.

What are the specifications of 55AC4421?

Key specifications for 55AC4421: Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Cross-Sectional Thickness: 0.281 INCHES NOMINAL IN; Style Designator: CIRCULAR; Material Document and Classification: HH-C-576 CL 2 FED SPEC SINGLE MATERIAL RESPONSE OVERALL. 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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