PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-021Gasket

Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. · NSN 5330-00-579-2573 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-579-2573 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-579-2573. Primary manufacturer part number: 50-021.
Features
  • Gasket — FSC 5330
  • Aperture Diameter: 4.500 INCHES NOMINAL IN
  • Cross-Sectional Thickness: 0.013 INCHES NOMINAL IN
  • Style Designator: CIRCULAR
  • Cross-Sectional Shape Style: CLOTH AND SYNTHETIC RUBBER, NONMETALLIC MATERIAL
  • Material: RUBBER SYNTHETIC AND PLASTIC POLYAMIDE NYLON OVERALL
  • Outside Diameter: 5.000 INCHES NOMINAL IN
  • 4 verified cross-references
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic and Plastic Polyamide Nylon Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-579-2573, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5330-00-579-2573
Primary Part Number50-021
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCrane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
StatusACTIVE
Aperture Diameter4.500 INCHES NOMINAL IN
Cross-Sectional Thickness0.013 INCHES NOMINAL IN
Style DesignatorCIRCULAR
Cross-Sectional Shape StyleCLOTH AND SYNTHETIC RUBBER, NONMETALLIC MATERIAL
MaterialRUBBER SYNTHETIC AND PLASTIC POLYAMIDE NYLON OVERALL
Outside Diameter5.000 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6210-00-060-7321 INTERCHANGEABLE
Light,marker,aircraft Obstructio
3110-00-195-1064108924 INTERCHANGEABLE
Retainer and Balls,bearing
Hyster-Yale Group, Inc.
5820-00-200-591650021 INTERCHANGEABLE
Holder Assembly
Apw Electronic Solutions
5133-00-335-5380 INTERCHANGEABLE
Extension,chuck,dri
2915-00-486-074150021 INTERCHANGEABLE
Tube Assy-Eng Primi
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5330-00-599-5132 INTERCHANGEABLE
Seal,plain Encased
1680-00-766-827450021-1 INTERCHANGEABLE
Parts Kit,actuator,
Meggitt North Hollywood Inc
5325-00-837-2256500-21 INTERCHANGEABLE
Ring,retaining
Fl Industries Inc Pneumotive Div
4920-00-874-2581 INTERCHANGEABLE
Adapter
6240-01-357-590450021 INTERCHANGEABLE
Lamp,incandescent
Schlueter Co the
Cross-Reference Index
Part NumberManufacturer
S30539 Bae Systems Land & Armaments L.p. (USA)
50-021 PRIMARY Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
1942958 Naval Ship Systems Command (USA)
S30539 Amz Alabama Inc. (USA)
Related Parts
6210-00-060-7321INTERCHANGEABLE
LIGHT,MARKER,AIRCRAFT OBSTRUCTIO
3110-00-195-1064INTERCHANGEABLE
RETAINER AND BALLS,BEARING
108924
5820-00-200-5916INTERCHANGEABLE
HOLDER ASSEMBLY
50021
5133-00-335-5380INTERCHANGEABLE
EXTENSION,CHUCK,DRI
2915-00-486-0741INTERCHANGEABLE
TUBE ASSY-ENG PRIMI
50021
5330-00-599-5132INTERCHANGEABLE
SEAL,PLAIN ENCASED
1680-00-766-8274INTERCHANGEABLE
PARTS KIT,ACTUATOR,
50021-1
5325-00-837-2256INTERCHANGEABLE
RING,RETAINING
500-21
4920-00-874-2581INTERCHANGEABLE
ADAPTER
6240-01-357-5904INTERCHANGEABLE
LAMP,INCANDESCENT
50021
5331-01-597-3441INTERCHANGEABLE
O-RING
50021
4520-01-606-2982INTERCHANGEABLE
DAMPER,FLUE
50021

Frequently Asked Questions

What is NSN 5330-00-579-2573?

NSN 5330-00-579-2573 is a Gasket, manufactured by Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp., classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-579-2573?

NSN 5330-00-579-2573 has 4 cross-referenced part numbers: S30539 (Bae Systems Land & Armaments L.p.), 50-021 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), 1942958 (Naval Ship Systems Command), S30539 (Amz Alabama Inc.).

What NSN replaces 5330-00-579-2573?

There are 12 known substitutes for 5330-00-579-2573: 6210-00-060-7321, 3110-00-195-1064, 5820-00-200-5916 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50-021?

Key specifications for 50-021: Aperture Diameter: 4.500 INCHES NOMINAL IN; Cross-Sectional Thickness: 0.013 INCHES NOMINAL IN; Style Designator: CIRCULAR; Cross-Sectional Shape Style: CLOTH AND SYNTHETIC RUBBER, NONMETALLIC MATERIAL. 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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