PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

L51Seal Ring,metal

Lockheed Martin Corporation · NSN 5330-01-572-8072 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-572-8072 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-572-8072. Primary manufacturer part number: L51.
Features
  • Seal Ring,metal — FSC 5330
  • 1 verified cross-reference
  • Primary manufacturer: Lockheed Martin Corporation
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal Ring,metal, cataloged under National Stock Number 5330-01-572-8072, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Lockheed Martin Corporation. This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-572-8072
Primary Part NumberL51
Item NameSeal Ring,metal
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerLockheed Martin Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
2940-00-141-9025 INTERCHANGEABLE
Filter Element,fluid
5975-00-152-1046 INTERCHANGEABLE
Box Connector,electrical
5975-00-152-1144 INTERCHANGEABLE
Box Connector,electrical
5975-00-170-3623 INTERCHANGEABLE
Junction Box
5330-00-291-962510455 INTERCHANGEABLE
Seal,plain Encased
Gaf Corp
2520-00-753-51921898X76 INTERCHANGEABLE
Pilot
Kenworth Truck Co a Div of Paccar Inc
5305-01-219-5941L5-1 INTERCHANGEABLE
Screw,shoulder
Mjt Holdings Llc
6520-01-256-5016 INTERCHANGEABLE
Crown,dental,temporary
5330-01-276-8459L51 INTERCHANGEABLE
Gasket
Emglo Products Corp
7610-01-507-0264L51 INTERCHANGEABLE
Manual,technical
Powis Parker Inc
Cross-Reference Index
Part NumberManufacturer
L51 PRIMARY Lockheed Martin Corporation (USA)
Related Parts
2940-00-141-9025INTERCHANGEABLE
FILTER ELEMENT,FLUID
5975-00-152-1046INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5975-00-152-1144INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5975-00-170-3623INTERCHANGEABLE
JUNCTION BOX
5330-00-291-9625INTERCHANGEABLE
SEAL,PLAIN ENCASED
10455
2520-00-753-5192INTERCHANGEABLE
PILOT
1898X76
5305-01-219-5941INTERCHANGEABLE
SCREW,SHOULDER
L5-1
6520-01-256-5016INTERCHANGEABLE
CROWN,DENTAL,TEMPORARY
5330-01-276-8459INTERCHANGEABLE
GASKET
L51
7610-01-507-0264INTERCHANGEABLE
MANUAL,TECHNICAL
L51
6550-01-523-4910INTERCHANGEABLE
TEST STRIP,REAGENTS

Frequently Asked Questions

What is NSN 5330-01-572-8072?

NSN 5330-01-572-8072 is a Seal Ring,metal, manufactured by Lockheed Martin Corporation, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-572-8072?

NSN 5330-01-572-8072 has 1 cross-referenced part number: L51 (Lockheed Martin Corporation).

What NSN replaces 5330-01-572-8072?

There are 11 known substitutes for 5330-01-572-8072: 2940-00-141-9025, 5975-00-152-1046, 5975-00-152-1144 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of L51?

Key specifications for L51: End Item Identification: U-2. 1 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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