PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37391Seal,plain Encased

Skf Usa Inc. Dba Skf Aerospace Sealing Solutions · NSN 5330-00-154-5439 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-154-5439 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-154-5439. Primary manufacturer part number: 37391.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT
  • Accommodated Shaft Diameter: 3.750 INCHES NOMINAL IN
  • Seal Width: 0.625 INCHES NOMINAL IN
  • Material: LEATHER SEALING ELEMENT
  • Case Style: SQUARE
  • Sealing Element Style: ANGULAR
  • Housing Bore Diameter: 4.751 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Leather Sealing Element construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-154-5439, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Skf Usa Inc. Dba Skf Aerospace Sealing Solutions. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, 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
NSN5330-00-154-5439
Primary Part Number37391
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSkf Usa Inc. Dba Skf Aerospace Sealing Solutions
StatusACTIVE
Accommodated Shaft Maximum Rated Speed2000 FEET PER MINUTE FT
Accommodated Shaft Diameter3.750 INCHES NOMINAL IN
Seal Width0.625 INCHES NOMINAL IN
MaterialLEATHER SEALING ELEMENT
Case StyleSQUARE
Sealing Element StyleANGULAR
Housing Bore Diameter4.751 INCHES NOMINAL IN
MaterialSTEEL CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 5
3040-00-237-6108C118 INTERCHANGEABLE
Clamp,hub
Designatronics Incorporated Div Sterling Instruments Div
5961-00-937-3923 INTERCHANGEABLE
Transistor
4330-01-266-5661373971 INTERCHANGEABLE
Filter,fluid
Hyster-Yale Group, Inc. Div Hyster-Yale Materials Handling
3120-01-292-723037391 INTERCHANGEABLE
Bearing,sleeve
Ingersoll-Rand Company Dba Ingersoll-Rand Div Tool & Hoist Division
3120-01-545-642037391 INTERCHANGEABLE
Bushing,sleeve
Fascan International, Inc.
Cross-Reference Index
Part NumberManufacturer
37391 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
47W324M1 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
Related Parts
3040-00-237-6108INTERCHANGEABLE
CLAMP,HUB
C118
5961-00-937-3923INTERCHANGEABLE
TRANSISTOR
4330-01-266-5661INTERCHANGEABLE
FILTER,FLUID
373971
3120-01-292-7230INTERCHANGEABLE
BEARING,SLEEVE
37391
3120-01-545-6420INTERCHANGEABLE
BUSHING,SLEEVE
37391

Frequently Asked Questions

What is NSN 5330-00-154-5439?

NSN 5330-00-154-5439 is a Seal,plain Encased, manufactured by Skf Usa Inc. Dba Skf Aerospace Sealing Solutions, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-154-5439?

NSN 5330-00-154-5439 has 2 cross-referenced part numbers: 37391 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 47W324M1 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions).

What NSN replaces 5330-00-154-5439?

There are 5 known substitutes for 5330-00-154-5439: 3040-00-237-6108, 5961-00-937-3923, 4330-01-266-5661 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37391?

Key specifications for 37391: Accommodated Shaft Maximum Rated Speed: 2000 FEET PER MINUTE FT; Accommodated Shaft Diameter: 3.750 INCHES NOMINAL IN; Seal Width: 0.625 INCHES NOMINAL IN; Material: LEATHER SEALING ELEMENT. 8 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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