PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

820-4384376PC49Seal,plain Encased

Naval Sea Systems Command · NSN 5330-00-900-9501 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-900-9501 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-900-9501. Primary manufacturer part number: 820-4384376PC49.
Features
  • Seal,plain Encased — FSC 5330
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
  • Criticality Code Justification: ZZZY
  • 7 verified cross-references
  • Primary manufacturer: Naval Sea Systems Command
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-900-9501, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Sea Systems Command. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-900-9501
Primary Part Number820-4384376PC49
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
5325-00-412-9699 INTERCHANGEABLE
Ring,retaining
5330-00-892-4169 INTERCHANGEABLE
Packing,preformed
5305-00-912-3426 INTERCHANGEABLE
Screw,cap,socket Head
3110-00-926-1360 INTERCHANGEABLE
Retainer and Rollers,bearing
5315-00-965-1823 INTERCHANGEABLE
Pin,cotter
Cross-Reference Index
Part NumberManufacturer
820-4384376PC49 Naval Sea Systems Command (USA)
M-1-87173 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
M1-87173PC26 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
21159-592 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
1-87751 Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
1-87751 Spx Flow Us, Llc Dba Spx Valves & Controls (USA)
820-4384399-1 Naval Sea Systems Command (USA)
Related Parts
5325-00-412-9699INTERCHANGEABLE
RING,RETAINING
5330-00-892-4169INTERCHANGEABLE
PACKING,PREFORMED
5305-00-912-3426INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
3110-00-926-1360INTERCHANGEABLE
RETAINER AND ROLLERS,BEARING
5315-00-965-1823INTERCHANGEABLE
PIN,COTTER

Frequently Asked Questions

What is NSN 5330-00-900-9501?

NSN 5330-00-900-9501 is a Seal,plain Encased, manufactured by Naval Sea Systems Command, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-900-9501?

NSN 5330-00-900-9501 has 7 cross-referenced part numbers: 820-4384376PC49 (Naval Sea Systems Command), M-1-87173 (Spx Flow Us, Llc Dba Spx Valves & Controls), M1-87173PC26 (Spx Flow Us, Llc Dba Spx Valves & Controls), 21159-592 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 1-87751 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc) and 2 more.

What NSN replaces 5330-00-900-9501?

There are 5 known substitutes for 5330-00-900-9501: 5325-00-412-9699, 5330-00-892-4169, 5305-00-912-3426 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 820-4384376PC49?

Key specifications for 820-4384376PC49: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVICP MECH; ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS.; Criticality Code Justification: ZZZY. 2 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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