PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

51X1830Seal,plain Encased

Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc · NSN 5330-00-291-9151 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-291-9151 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-291-9151. Primary manufacturer part number: 51X1830.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Diameter: 2.500 INCHES NOMINAL IN
  • Sealing Element Style: ANGULAR
  • Material: STEEL CASE
  • Case Style: SQUARE
  • Housing Bore Diameter: 3.751 INCHES NOMINAL IN
  • Accommodated Shaft Maximum Rated Speed: 1000 FEET PER MINUTE FT
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Case construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-291-9151, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 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.

Technical Specifications
ParameterValue
NSN5330-00-291-9151
Primary Part Number51X1830
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerGarlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc
StatusACTIVE
Accommodated Shaft Diameter2.500 INCHES NOMINAL IN
Sealing Element StyleANGULAR
MaterialSTEEL CASE
Case StyleSQUARE
Housing Bore Diameter3.751 INCHES NOMINAL IN
Accommodated Shaft Maximum Rated Speed1000 FEET PER MINUTE FT
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Seal Width0.469 INCHES MINIMUM AND 0.531 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5410-00-244-7322 INTERCHANGEABLE
Screen,window,metal
4730-00-274-9255B13 INTERCHANGEABLE
Packing Nut
Sloan Valve Company
5950-00-290-7962B13 INTERCHANGEABLE
Transformer,power
B G Laboratories Inc.
5905-00-502-2727 INTERCHANGEABLE
Resistor,fixed,wire Wound,nonind
5905-00-502-2729 INTERCHANGEABLE
Resistor,fixed,wire Wound,nonind
5905-00-502-2730 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-502-2733 INTERCHANGEABLE
Resistor,fixed,wire Wound,nonind
5905-00-502-2738 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-502-2749 INTERCHANGEABLE
Resistor,fixed,wire Wound
5905-00-502-2751 INTERCHANGEABLE
Resistor,fixed,wire Wound,nonind
Cross-Reference Index
Part NumberManufacturer
51X1830 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
B13 PRIMARY Sicard a Division of Smi-Snowblast Inc Dba Sicard (USA)
1830 PRIMARY Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
Related Parts
5410-00-244-7322INTERCHANGEABLE
SCREEN,WINDOW,METAL
4730-00-274-9255INTERCHANGEABLE
PACKING NUT
B13
5950-00-290-7962INTERCHANGEABLE
TRANSFORMER,POWER
B13
5905-00-502-2727INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,NONIND
5905-00-502-2729INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,NONIND
5905-00-502-2730INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-502-2733INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,NONIND
5905-00-502-2738INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-502-2749INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND
5905-00-502-2751INTERCHANGEABLE
RESISTOR,FIXED,WIRE WOUND,NONIND
5999-00-769-4975INTERCHANGEABLE
HEATER,THERMAL RELEASE
5365-00-833-3743INTERCHANGEABLE
SHIM
B1-3

Frequently Asked Questions

What is NSN 5330-00-291-9151?

NSN 5330-00-291-9151 is a Seal,plain Encased, manufactured by Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-291-9151?

NSN 5330-00-291-9151 has 4 cross-referenced part numbers: 51X1830 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), B13 (Sicard a Division of Smi-Snowblast Inc Dba Sicard), 1830 (Garlock Sealing Technologies Llc Dba Garlock Sealing Technologies Llc), 00044 (Defense Logistics Agency Dba Defense Supply Center Philadelphia).

What NSN replaces 5330-00-291-9151?

There are 12 known substitutes for 5330-00-291-9151: 5410-00-244-7322, 4730-00-274-9255, 5950-00-290-7962 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 51X1830?

Key specifications for 51X1830: Accommodated Shaft Diameter: 2.500 INCHES NOMINAL IN; Special Features: DRW 00044 TYPE 1 CASE TYPE 2B ELEMENT; Sealing Element Style: ANGULAR; Material: STEEL CASE. 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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