PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

252621R1Gasket

Komatsu America Corp. · NSN 5330-00-252-3952 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-252-3952 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-252-3952. Primary manufacturer part number: 252621R1.
Features
  • Gasket — FSC 5330
  • Aperture Length: 19.875 INCHES NOMINAL IN
  • Inside Corner Radius: 1.000 INCHES NOMINAL IN
  • Aperture Width: 5.250 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
  • Style Designator: NON-CIRCULAR
  • Material: ASBESTOS AND RUBBER CHLOROPRENE CLASS CR AND RUBBER SYNTHETIC OVERALL
  • Material Document and Classification: MIL-G-12803 +1253-A MIL SPEC 1ST MATERIAL RESPONSE OVERALL
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Asbestos and Rubber Chloroprene Class Cr and Rubber Synthetic Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-252-3952, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Komatsu America Corp.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-252-3952
Primary Part Number252621R1
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerKomatsu America Corp.
StatusCANCELLED
Aperture Length19.875 INCHES NOMINAL IN
Inside Corner Radius1.000 INCHES NOMINAL IN
Aperture Width5.250 INCHES NOMINAL IN
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Style DesignatorNON-CIRCULAR
MaterialASBESTOS AND RUBBER CHLOROPRENE CLASS CR AND RUBBER SYNTHETIC OVERALL
Material Document and ClassificationMIL-G-12803 +1253-A MIL SPEC 1ST MATERIAL RESPONSE OVERALL
Outside Corner Radius1.438 INCHES NOMINAL IN
Cross-Sectional Thickness0.062 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5345-01-432-3292048011-18737 INTERCHANGEABLE
Disk,abrasive
3m Company
7690-01-518-8638PTL-29-489 INTERCHANGEABLE
Label
Brady United States
6510-01-588-20172440 INTERCHANGEABLE
Bandage,elastic
Molnlycke Health Care Us, Llc Dba Molnlycke Health Care Us Div Molnlycke Health Care
Cross-Reference Index
Part NumberManufacturer
252621R1 Komatsu America Corp. (USA)
252621R1 Komatsu American Intl Co (USA)
252621R1 Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/ (USA)
18737 Dana Automotive Systems Group, Llc Dba Dana Sealing Products (USA)
252621R1 Navistar International Corporation Dba Navistar (USA)
Related Parts
5345-01-432-3292INTERCHANGEABLE
DISK,ABRASIVE
048011-18737
7690-01-518-8638INTERCHANGEABLE
LABEL
PTL-29-489
6510-01-588-2017INTERCHANGEABLE
BANDAGE,ELASTIC
2440

Frequently Asked Questions

What is NSN 5330-00-252-3952?

NSN 5330-00-252-3952 is a Gasket, manufactured by Komatsu America Corp., classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-252-3952?

NSN 5330-00-252-3952 has 5 cross-referenced part numbers: 252621R1 (Komatsu America Corp.), 252621R1 (Komatsu American Intl Co), 252621R1 (Navistar Intl Corp Melrose Park Engine Plant Location /melrose Park/), 18737 (Dana Automotive Systems Group, Llc Dba Dana Sealing Products), 252621R1 (Navistar International Corporation Dba Navistar).

What NSN replaces 5330-00-252-3952?

There are 3 known substitutes for 5330-00-252-3952: 5345-01-432-3292, 7690-01-518-8638, 6510-01-588-2017. Verify interchangeability with system specifications before substitution.

What are the specifications of 252621R1?

Key specifications for 252621R1: Aperture Length: 19.875 INCHES NOMINAL IN; Inside Corner Radius: 1.000 INCHES NOMINAL IN; Overall Length: 20.750 INCHES NOMINAL IN; Aperture Width: 5.250 INCHES NOMINAL IN. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-252-3952 still in active supply?

NSN 5330-00-252-3952 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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