PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

20421Gasket

Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division · NSN 5330-01-017-1535 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-017-1535 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-017-1535. Primary manufacturer part number: 20421.
Features
  • Gasket — FSC 5330
  • Special Test Features: DRILL 4 VENT HOLES NO. 72 /0.025 IN. DIA/,LOCATED AT 90 DEGREE AROUND CIRCLE,2 HOLES ON EACH SIDE AT 180 DEGREES APART IN
  • Style Designator: CIRCULAR
  • Material: STEEL COMP 321 OVERALL
  • Cross-Sectional Thickness: 0.095 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN
  • Surface Treatment: SILVER OVERALL
  • Aperture Diameter: 1.169 INCHES MINIMUM AND 1.201 INCHES MAXIMUM IN
  • Outside Diameter: 1.377 INCHES MINIMUM AND 1.383 INCHES MAXIMUM IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Comp 321 Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-01-017-1535, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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
NSN5330-01-017-1535
Primary Part Number20421
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerParker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division
StatusACTIVE
Special Test FeaturesDRILL 4 VENT HOLES NO. 72 /0.025 IN. DIA/,LOCATED AT 90 DEGREE AROUND CIRCLE,2 HOLES ON EACH SIDE AT 180 DEGREES APART IN
Style DesignatorCIRCULAR
MaterialSTEEL COMP 321 OVERALL
Cross-Sectional Thickness0.095 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN
Surface TreatmentSILVER OVERALL
Aperture Diameter1.169 INCHES MINIMUM AND 1.201 INCHES MAXIMUM IN
Outside Diameter1.377 INCHES MINIMUM AND 1.383 INCHES MAXIMUM IN
Cross-Sectional Shape StyleHOLLOW
Material Document and ClassificationQQ-S-763,CL 321 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6210-00-223-64652042-1 INTERCHANGEABLE
Light Assembly,indicator
Safran Electronics & Defense, Avionics Usa, Llc
5940-00-503-6368245004 INTERCHANGEABLE
Terminal,stud
Cae Usa Inc.
5815-00-600-2685 INTERCHANGEABLE
Plug,connector
6210-00-776-1661 INTERCHANGEABLE
Lens,light
5999-00-790-16168513216 INTERCHANGEABLE
Contact,electrical
Us Army Aviation and Missile Command
5310-01-391-4277 INTERCHANGEABLE
Washer,lock
6550-01-408-4901R20421 INTERCHANGEABLE
Reference Standard Set,latex Par
Remel Inc.
5120-01-430-7993 INTERCHANGEABLE
Wrench,box and Open End,combinat
7920-01-585-41502042-1 INTERCHANGEABLE
Brush,scrub
Tech Spray Inc
2815-01-591-24684995602 INTERCHANGEABLE
Rocker Arm Assembly,engine Poppe
Cummins Inc.
Cross-Reference Index
Part NumberManufacturer
4995604 Marotta Controls Inc (USA)
280903-99 Marotta Controls Inc (USA)
4456232-0022 Marotta Controls Inc (USA)
20421 PRIMARY Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division (USA)
Related Parts
6210-00-223-6465INTERCHANGEABLE
LIGHT ASSEMBLY,INDICATOR
2042-1
5940-00-503-6368INTERCHANGEABLE
TERMINAL,STUD
245004
5815-00-600-2685INTERCHANGEABLE
PLUG,CONNECTOR
6210-00-776-1661INTERCHANGEABLE
LENS,LIGHT
5999-00-790-1616INTERCHANGEABLE
CONTACT,ELECTRICAL
8513216
5310-01-391-4277INTERCHANGEABLE
WASHER,LOCK
6550-01-408-4901INTERCHANGEABLE
REFERENCE STANDARD SET,LATEX PAR
R20421
5120-01-430-7993INTERCHANGEABLE
WRENCH,BOX AND OPEN END,COMBINAT
7920-01-585-4150INTERCHANGEABLE
BRUSH,SCRUB
2042-1
2815-01-591-2468INTERCHANGEABLE
ROCKER ARM ASSEMBLY,ENGINE POPPE
4995602
4820-01-672-6818INTERCHANGEABLE
VALVE,BALL
20421
4310-01-706-2918INTERCHANGEABLE
RING,PISTON
18-20417-12R1

Frequently Asked Questions

What is NSN 5330-01-017-1535?

NSN 5330-01-017-1535 is a Gasket, manufactured by Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-017-1535?

NSN 5330-01-017-1535 has 4 cross-referenced part numbers: 4995604 (Marotta Controls Inc), 280903-99 (Marotta Controls Inc), 4456232-0022 (Marotta Controls Inc), 20421 (Parker-Hannifin Corporation Dba Parker Hannifin Advanced Products Co Div Composite Sealing Systems Division).

What NSN replaces 5330-01-017-1535?

There are 12 known substitutes for 5330-01-017-1535: 6210-00-223-6465, 5940-00-503-6368, 5815-00-600-2685 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 20421?

Key specifications for 20421: Special Test Features: DRILL 4 VENT HOLES NO. 72 /0.025 IN. DIA/,LOCATED AT 90 DEGREE AROUND CIRCLE,2 HOLES ON EACH SIDE AT 180 DEGREES APART IN; Style Designator: CIRCULAR; Material: STEEL COMP 321 OVERALL; Cross-Sectional Thickness: 0.095 INCHES MINIMUM AND 0.101 INCHES MAXIMUM IN. 9 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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