PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

121502Gasket

The Boeing Company Div Defense · NSN 5330-00-311-3057 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-311-3057 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-311-3057. Primary manufacturer part number: 121502.
Features
  • Gasket — FSC 5330
  • Cross-Sectional Thickness: 0.021 INCHES NOMINAL IN
  • Outside Corner Radius: 0.156 INCHES NOMINAL IN
  • Aperture Diameter: 0.750 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
  • Material: CELLULOSE OVERALL
  • Center to Center Distance Between Bolt Holes Along Width: 0.812 INCHES MINIMUM AND 0.968 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
  • Hole Diameter: 0.125 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
  • Center to Center Distance Between Bolt Holes Along Length: 0.812 INCHES MINIMUM AND 0.968 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Cellulose Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-311-3057, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Defense. Government technical data includes 8 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. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-311-3057
Primary Part Number121502
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerThe Boeing Company Div Defense
StatusACTIVE
Cross-Sectional Thickness0.021 INCHES NOMINAL IN
Outside Corner Radius0.156 INCHES NOMINAL IN
Aperture Diameter0.750 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN
MaterialCELLULOSE OVERALL
Center to Center Distance Between Bolt Holes Along Width0.812 INCHES MINIMUM AND 0.968 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
Hole Diameter0.125 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Center to Center Distance Between Bolt Holes Along Length0.812 INCHES MINIMUM AND 0.968 INCHES MAXIMUM LOCATION NOT OTHERWISE SPECIFIED IN
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5136-00-227-8627 INTERCHANGEABLE
Tap,thread Cutting
6515-01-255-4783523-835 INTERCHANGEABLE
Clip,hemostatic
Pilling Surgical Inc Dba Pilling Weck Div Pilling Instruments
5940-01-468-57491215-02 INTERCHANGEABLE
Terminal Board
Regal Beloit America, Inc
Cross-Reference Index
Part NumberManufacturer
121502 Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West (USA)
V121502-2 Apollo Audio-Visual (USA)
121502 PRIMARY The Boeing Company Div Defense (USA)
Related Parts
5136-00-227-8627INTERCHANGEABLE
TAP,THREAD CUTTING
6515-01-255-4783INTERCHANGEABLE
CLIP,HEMOSTATIC
523-835
5940-01-468-5749INTERCHANGEABLE
TERMINAL BOARD
1215-02

Frequently Asked Questions

What is NSN 5330-00-311-3057?

NSN 5330-00-311-3057 is a Gasket, manufactured by The Boeing Company Div Defense, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-311-3057?

NSN 5330-00-311-3057 has 3 cross-referenced part numbers: 121502 (Mcdonnell Douglas Corp Mcdonnell Douglas Aerospace Opns West), V121502-2 (Apollo Audio-Visual), 121502 (The Boeing Company Div Defense).

What NSN replaces 5330-00-311-3057?

There are 3 known substitutes for 5330-00-311-3057: 5136-00-227-8627, 6515-01-255-4783, 5940-01-468-5749. Verify interchangeability with system specifications before substitution.

What are the specifications of 121502?

Key specifications for 121502: Cross-Sectional Thickness: 0.021 INCHES NOMINAL IN; Outside Corner Radius: 0.156 INCHES NOMINAL IN; Aperture Diameter: 0.750 INCHES MINIMUM AND 0.937 INCHES MAXIMUM IN; Material: CELLULOSE OVERALL. 10 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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