PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M1243Gasket

Met-Pro Corporation · NSN 5330-00-599-5440 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-599-5440 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-599-5440. Primary manufacturer part number: M1243.
Features
  • Gasket — FSC 5330
  • Cross-Sectional Thickness: 0.032 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR METAL
  • Style Designator: CIRCULAR
  • Aperture Diameter: 0.448 INCHES NOMINAL IN
  • Outside Diameter: 0.688 INCHES NOMINAL IN
  • Material: COPPER OVERALL
  • 2 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Copper Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-599-5440, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Met-Pro Corporation. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-599-5440
Primary Part NumberM1243
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerMet-Pro Corporation
StatusACTIVE
Cross-Sectional Thickness0.032 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR METAL
Style DesignatorCIRCULAR
Aperture Diameter0.448 INCHES NOMINAL IN
Outside Diameter0.688 INCHES NOMINAL IN
MaterialCOPPER OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
3120-00-060-5258 INTERCHANGEABLE
Bearing,sleeve
5910-00-064-770610057 INTERCHANGEABLE
Capacitor,fixed,metallized,paper
Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan
4320-00-122-0615379.086.005 INTERCHANGEABLE
Ring,lantern
Weil Pump Co Inc
5970-00-143-533610057 INTERCHANGEABLE
Bushing
Mitsubishi Caterpillar Forklift America, Inc
5133-00-228-1344 INTERCHANGEABLE
Drill,twist
5306-00-262-961300478 INTERCHANGEABLE
Bolt,hook
Defense Logistics Agency Dba Defense Supply Center Philadelphia
3455-00-405-9399155-7453-27 INTERCHANGEABLE
Cutter,milling,end
Cail Tool & Machinery, Inc. Dba Cail Tool & Machinery Inc
5305-00-638-8504M1243 INTERCHANGEABLE
Screw,shoulder
Aerosonic Llc
3040-00-785-6377 INTERCHANGEABLE
Shaft,straight
6625-00-971-7090GS4172 INTERCHANGEABLE
Voltmeter
Hamilton Sundstrand Corporation Dba Collins Aerospace
Cross-Reference Index
Part NumberManufacturer
M1243 PRIMARY Met-Pro Corporation (USA)
100-57 Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp. (USA)
Related Parts
3120-00-060-5258INTERCHANGEABLE
BEARING,SLEEVE
5910-00-064-7706INTERCHANGEABLE
CAPACITOR,FIXED,METALLIZED,PAPER
10057
4320-00-122-0615INTERCHANGEABLE
RING,LANTERN
379.086.005
5970-00-143-5336INTERCHANGEABLE
BUSHING
10057
5133-00-228-1344INTERCHANGEABLE
DRILL,TWIST
5306-00-262-9613INTERCHANGEABLE
BOLT,HOOK
00478
3455-00-405-9399INTERCHANGEABLE
CUTTER,MILLING,END
155-7453-27
5305-00-638-8504INTERCHANGEABLE
SCREW,SHOULDER
M1243
3040-00-785-6377INTERCHANGEABLE
SHAFT,STRAIGHT
6625-00-971-7090INTERCHANGEABLE
VOLTMETER
GS4172
5930-01-122-0518INTERCHANGEABLE
SWITCH,TOGGLE
3120-01-283-6421INTERCHANGEABLE
BEARING,SLEEVE
10057

Frequently Asked Questions

What is NSN 5330-00-599-5440?

NSN 5330-00-599-5440 is a Gasket, manufactured by Met-Pro Corporation, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-599-5440?

NSN 5330-00-599-5440 has 2 cross-referenced part numbers: M1243 (Met-Pro Corporation), 100-57 (Tiffin Parts, L.l.c. Div Subsidiary of Pettibone Corp.).

What NSN replaces 5330-00-599-5440?

There are 12 known substitutes for 5330-00-599-5440: 3120-00-060-5258, 5910-00-064-7706, 4320-00-122-0615 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M1243?

Key specifications for M1243: Cross-Sectional Thickness: 0.032 INCHES NOMINAL IN; Cross-Sectional Shape Style: RECTANGULAR METAL; Style Designator: CIRCULAR; Aperture Diameter: 0.448 INCHES NOMINAL IN. 6 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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