PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

AS5782P09-443Back-Up Ring,preformed Packing

Sae International Dba Sae International · NSN 5330-01-721-6628 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-721-6628 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-721-6628. Primary manufacturer part number: AS5782P09-443.
Features
  • Back-Up Ring,preformed Packing — FSC 5330
  • 5 verified cross-references
  • Primary manufacturer: Sae International Dba Sae International
Applications
  • General assembly and fastening
  • Structural repair and reinforcement
  • Facility maintenance hardware
General Description

The Back-Up Ring,preformed Packing, cataloged under National Stock Number 5330-01-721-6628, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameBack-Up Ring,preformed Packing
FSC / FSG5330 — No Item Name Available (FSG 53)
ManufacturersNaval Sea Systems Command (CAGE 53711); Electric Boat Corporation Div General Dynamics Electric Boat (CAGE 96169); Sae International Dba Sae International (CAGE 0U583)
Technical Specifications
ParameterValue
NSN5330-01-721-6628
Primary Part NumberAS5782P09-443
Item NameBack-Up Ring,preformed Packing
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5315-01-721-2630561-8836376-42 INTERCHANGEABLE
Pin,straight,headless
Naval Sea Systems Command
5340-01-721-2764561-8836376-8 INTERCHANGEABLE
Piston,dashpot
Naval Sea Systems Command
5365-01-721-2772561-8836376-35 INTERCHANGEABLE
Spacer,plate
Naval Sea Systems Command
5330-01-721-2782561-8836376-39 INTERCHANGEABLE
Gasket
Naval Sea Systems Command
5365-01-721-2832561-8836376-28 INTERCHANGEABLE
Shim
Naval Sea Systems Command
5330-01-721-3709561-8836376-29 INTERCHANGEABLE
Packing Assembly
Naval Sea Systems Command
5305-01-721-3759211061393A INTERCHANGEABLE
Screw,machine
Electric Boat Corporation Div General Dynamics Electric Boat
5340-01-721-377022-82-0380B INTERCHANGEABLE
Plate,mounting
Electric Boat Corporation Div General Dynamics Electric Boat
5305-01-721-4295211095647A INTERCHANGEABLE
Screw,machine
Electric Boat Corporation Div General Dynamics Electric Boat
5330-01-721-5733AS5782P09-457 INTERCHANGEABLE
Retainer,packing
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
8836376 Naval Sea Systems Command (USA)
R6250302-32 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
561-8836376-32 Naval Sea Systems Command (USA)
LSA002745-32 Electric Boat Corporation Div General Dynamics Electric Boat (USA)
AS5782P09-443 PRIMARY Sae International Dba Sae International (USA)
Related Parts
5315-01-721-2630INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
561-8836376-42
5340-01-721-2764INTERCHANGEABLE
PISTON,DASHPOT
561-8836376-8
5365-01-721-2772INTERCHANGEABLE
SPACER,PLATE
561-8836376-35
5330-01-721-2782INTERCHANGEABLE
GASKET
561-8836376-39
5365-01-721-2832INTERCHANGEABLE
SHIM
561-8836376-28
5330-01-721-3709INTERCHANGEABLE
PACKING ASSEMBLY
561-8836376-29
5305-01-721-3759INTERCHANGEABLE
SCREW,MACHINE
211061393A
5340-01-721-3770INTERCHANGEABLE
PLATE,MOUNTING
22-82-0380B
5305-01-721-4295INTERCHANGEABLE
SCREW,MACHINE
211095647A
5330-01-721-5733INTERCHANGEABLE
RETAINER,PACKING
AS5782P09-457
5310-01-722-2980INTERCHANGEABLE
NUT,PLAIN,HEXAGON
561-8836376-13
5330-01-722-3763INTERCHANGEABLE
SEAL,PLAIN
218114816

Frequently Asked Questions

What is NSN 5330-01-721-6628?

NSN 5330-01-721-6628 is a Back-Up Ring,preformed Packing, manufactured by Sae International Dba Sae International, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-721-6628?

NSN 5330-01-721-6628 has 5 cross-referenced part numbers: 8836376 (Naval Sea Systems Command), R6250302-32 (Electric Boat Corporation Div General Dynamics Electric Boat), 561-8836376-32 (Naval Sea Systems Command), LSA002745-32 (Electric Boat Corporation Div General Dynamics Electric Boat), AS5782P09-443 (Sae International Dba Sae International).

What NSN replaces 5330-01-721-6628?

There are 12 known substitutes for 5330-01-721-6628: 5315-01-721-2630, 5340-01-721-2764, 5365-01-721-2772 and 9 more. Verify interchangeability with system specifications before substitution.

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